Sealing Stone Outside

Limestone, Sandstone, Travertine, Marble, Slate, Granite, concrete:
Regardless of what type of flooring you choose, the likelihood is it will require some form of sealing.

This is because natural stone is porous, and therefore if left unsealed, any moisture will be soaked up by the stone making it very difficult to remove, and potentially leaving the surface permanently stained (sometimes even fallen leaves can cause stains).

The best way to prevent all this is to seal the stone.

When you seal a stone, you are essentially filling any voids or pores of the stone with the sealer. This prevents any further liquid to absorb in to the tile, as demonstrated here with this close up shot of a water droplet on a tile sealed with LTP Mattstone.

When sealing natural stone outside it is important to use a breathable impregnating sealer, this will allow the transition of moisture from underneath.
Examples include LTP Mattstone H20 which will leave the stone looking as it does naturally. And LTP External Stone Sealer which will enhance any natural colour in the stone, both of these are water based breathable sealers and will require 24 hours to cure.

It is important to note that all stones located outdoors are susceptible to a condition known as efflorescence.
This blooming is caused by water moving through the substrate of a material and carrying minerals and salts found in the mortar bed, grout, soil or the stone itself.
We have a blog here all about efflorescence.

Its also very important when laying Natural stone to make sure that its fixed on a full bed of adhesive and not spot fixed.
The end result could look like this if its spot fixed.
Spot fixing issue Sandstone

If this has already happened to your patio, we have a blog here.

When sealing different natural stones, what will vary the most will be how many coats the stone will need before it is fully sealed.
Each stone exhibits different levels of porosity. A tumbled Limestone may have a higher porosity level than a Honed and filled Limestone.

Sealing natural stone with Mattstone H20 

Shake bottle before use.

Test the porosity of your stone with water and a teaspoon, using the LTP porosity test.

Once surfaces are clean and dry, apply the product to the surface evenly using a sealant applicator pad, brush or soft cloth.

When sealing its important not to over apply the sealer and redistribute excess, avoid letting the sealer pool on the surface, as this can cause white marks to appear on the stone when it dries.
On highly absorbent surfaces apply several coats wet-in-wet.
After 15 minutes, remove any excess sealer with an absorbent cloth. Do not allow residues to dry on the surface.
Do not walk on the surface for 3 hours and protect from wet conditions for 3 days.

Sealing Stone With LTP External Stone Sealer.

Shake bottle well before use. Apply evenly to the surface using a foam roller or paint brush. On more absorbent surfaces apply further coats at hourly intervals until the surface is completely saturated. Remove any residual sealer if still visible after one hour

Cleaning Tiles Outside

Before you start sealing your stone it is important to make sure your stone is clean and dry, other wise you will just seal in dirt and grime.

Old layers of sealer, dirt residues and light deposits of organic matter and algae must be removed from the surface and pores of the stone.

This can be done by either using LTP Grimex which is a intensive cleaner or LTP Mouldex Paving Cleaner.

To Clean with LTP Grimex, dilute 1:3 with water, apply to the surface with a sponge or water brush and leave to sit on the surface of the tiles for as long as it takes for the dirt to release. (5-30 minutes depending upon the level of dirt). If areas look as if they are drying out just add a little more solution to keep the area wet.

Agitate the surface with a stiff deck brush after approx 10 minutes (scrubber machines can be used).

Continue to scrub while adding clean water. Remove residues from the surface with water or scrubber machine.

Rinse thoroughly with clean fresh water to remove all remaining residues. Use a power washer if necessary.

Allow the surface at least 24 hours to dry before sealing.

To clean with LTP Mouldex Paving Cleaner, Shake well before use.
Surfaces to be treated should be completely dry before application.
Pour solution undiluted directly onto the pavers and spread out evenly using a sponge or paint brush, Garden sprayers can also be used and leave for a minimum of 1 hour.

Apply a little water and agitate with a stiff Deck brush or emulsifying pad to release the dirt and grime, and then rinse thoroughly using a hose or jet wash.
Some stubborn stains and black spot may require a longer treatment, in which case apply and leave on surfaces overnight. If some black spot remains after treatment, It should fade and disappear after a few days following the treatment. If not: re-apply. Keep pets off at all times during treatment. In case of contact with metals, fabrics and painted surfaces rinse with water immediately. Do not use on warm surfaces. Do not apply if rain is imminent. Avoid contact with ponds & plant life: if contact is made rinse well with plenty of water.

General Maintenance.
Weekly or daily depending on conditions, use a hose and a brush to remove any debris that may be lying on the stone.
Then annually if required use LTP Grimex, this will remove surface dirt and grime, possibly every 6-12 months depending on condition.
Dilute Grimex 1:3 parts water and apply the solution on to the surface and agitate.
Leave for 10 minutes before agitating again and then rinse with water.
Allow 24 hours to dry and then if necessary re-apply a light coat of sealer.

PLEASE NOTE: Always follow the detailed instructions on the product labels. Protect stone surfaces from contact with acidic substances. Do not use abrasive materials on honed or polished stones. Avoid using normal detergents or strong bleach cleaners on sealed surfaces as they will gradually remove the protective seal.

Please note that this information is offered as general guidance only and without guarantee. Your specific circumstances may need an alternative approach. In case of doubt, any process should be tried out in an inconspicuous area before general application.

Preparing Surfaces Before Sealing

All to often we see stone surfaces on busy sites that have been sealed, but not properly prepared before the sealing.

Resulting in sealed in boot prints, milling dust from cutting and grinding, and general dirt and grime.

Initial conditioning and cleaning before sealing is an important part of the protection process and ensures that the open pores of the stone are free from contaminants before filling with sealer.

The simple first step is quite commonly missed out and the consequences of this can lead to inadequate sealing resulting in staining and aftercare issues quite soon after installation.

To avoid these issues use LTP Grimex intensive cleaner.

Dilute 1:10 with water.  Wash down surfaces, rinse with water and then leave overnight to dry before sealing.

The result of this simple first step is deeper penetration of sealer, which will provide longer lasting protection………and of course…….no boot prints!

For more information about LTP visit our website.

LTP Grimex

Please note that this information is offered as general guidance only and without guarantee.  Your specific circumstances may need an alternative approach.  In case of doubt, any process should be tried out in an inconspicuous area before general application.

Problem Solving Black Limestone

We are often contacted in particular about black limestone, the appearance of stains and mineral deposits is not uncommon and occurs with most types of limestone, however the appearance on black limestone or darker stone is more prevalent. This is why it is possible to notice some marks appearing even before sealing. As a naturally occurring chemical reaction it is often difficult to avoid. So this blog is all about some of the different things that can happen, what you can do to prevent it or what you can do to resolve the issues as best you can.

Mineral Stains

Mineral deposit stains on black limstone

Mineral stains are sometimes caused when rain water trickles through sand-cement mortar screeds, toppings and bedding under limestone paving can become moderately alkaline. As this rainwater evaporates, its alkalinity increases until the solution becomes saturated.
This solution then can travel to the surface within the limestone where it starts to deposit solids such as white and grey encrustations of calcium carbonate also known as lime plumes.
To remove the the mineral salts from the surface wash the surface with a mild solution of acid*. This will help disperse the mineral salt deposits from the surface.
LTP Grout Stain Remover is a product suitable for the task, dilute 1 part LTP Grout Stain remover in 4 parts warm water and apply to the surface of the stone. Agitate using an emulsifying pad or similar abrasive pad and then rinse thoroughly with plenty of clean water. Repeat process if necessary.
For more information about LTP Grout Stain Remover please see the Technical Data Sheet.

*N.B Grout stain remover may etch the surface and cause the stone to dry lighter.
If the Limestone is either Honed or Polished do not use LTP Grout Stain Remover and instead use LTP Powerstripper.

Mineral deposits causing a banding effect

Halo Stains & Bands Of Mineral Deposits.

This is caused by trace amounts of sodium and potassium oxides within the Limestone which can also be activated by rain water. Even where rain is slightly acidic, the solutions of these salts in rainwater will gradually become alkaline. Surface wetting and evaporation can produce recurrent patches and bands of dampness known as accumulation zones ( rainwater pooling on the surface where it cannot run off).

Evaporation concentrates the alkaline solutions until they become saturated at the  outer limits or edge of accumulation zones. Further evaporation then causes precipitation, crystallisation and immobilisation of the salt at the surface and in pores immediately below the surface. The resulting bands of distinct pigmentation are halo stains as seen in the image above of Limestone.

Grout & Adhesive Stains.

img_0122

Adhesive Stains On Limestone

Grout and adhesive stains like this appear often, if the stone has been sealed beforehand then the process of removing the residues is easier.
After grouting most of the residues should be taken off with water before it fully dries on the surface. For the removal of most grout residues on Limestone we would recommend using LTP Powerstripper. However on more severe cases as shown in the picture above, using a mild solution of LTP Grout Stain Remover may be more effective.
Grout Stain Remover is an acid based cleaner and will etch any acid sensitive surfaces (Limestone, marble, some sandstones, chrome etc).
We would always recommend to test on a small inconspicuous area first.
LTP Grout Stain Remover Tech Data Sheet.

General Dirt & Grime

If your limestone has been outside for a couple of years, it may have seen better days.
General dirt and grime can be easily removed with LTP Grimex.
Dilute in a bucket of water as per instructions on the back of the bottle, then apply and leave for 10 minutes. Give it a scrub with a deck brush or an emulsifying pad and then rinse with plenty of clean water.
After cleaning allow to dry for 24 hours and then the stone will be ready for resealing.

Protect your Limestone with the correct sealing product.

Sealers used to enhance the appearance and help prevent limestone pavers staining from organic matter outside need to be breathable. LTP Mattstone H20 & LTP Stone Oil are examples of breathable sealers suitable for external use. As well as protecting the stone from staining, breathable sealers will allow the microscopic transition of moisture assisting any trapped moisture to escape through the stone from the mortar and sub surfaces. However, moisture permeating through the stone and sealer to the surface can still dry to leave a calciferous deposit.

Once the stone is thoroughly dry and mineral salt deposits are greatly reduced, general dirt and grime has been cleaned off, reseal the stone with an appropriate limestone sealer. LTP Mattstone H20 is highly effective natural stone sealing solution and is suitable for exterior use. However many of our customers have used LTP Stone Oil after acid washing their stone as it helps to re-enhance and deepen the colour.

Apply LTP Stone Oil to the surface of the stone using a paint brush. Allow it to absorb into the stone and then remove any visible excess from the surface after 45 minutes using an absorbent dry towel. The aim is to completely saturate the stone with as many coats of the sealer as necessary, but do not allow the sealer to dry and leave a film on the surface. Do not apply in direct sunlight.
For more information on how to apply please see the Technical Data Sheet.

LTP Mattstone H20 is applied to the surface with a paint brush, allow to absorb for 15 minutes and then apply a second coat. Remove any visible excess on the surface after 45 minutes.
For more information on how to apply please see the Technical Data Sheet.

 

Please note that this information is offered as general guidance only and without guarantee. Your specific circumstances may need an alternative approach. In case of doubt, any process should be tried out in an inconspicous area before general application. 

Removing Stubborn Cement & Grout Residues From Porcelain & Ceramic Wall & Floor Tiles

The following is an intensive cleaning guide for removing cement and grout residues from the surface of porcelain and ceramic wall & floor tiles following installation.

Porcelain-Tile-Header-Image

 

FOR USE ON ALL TYPES OF PORCELAIN & CERAMIC WALL & FLOOR TILES

 

1ltr-+-5-Ltr-Grout-stain-reLTP GROUT STAIN REMOVER

A rapid action cleaning agent for removing cement residues, grout stain, efflorescence and other similar deposits.  This product can be used in diluted or concentrated form, to assist removal of stubborn residue.

TECHNICAL FEATURES

  • High performance  .
  • Targets heavy or light films.
  • Walls & floors.
  • Rapid action.
  • Easy to use.
  • Interior & Exterior.
  • Efflorescence remover
DIRECTIONS FOR USE: FLOORS- REMOVING CEMENT AND GROUT RESIDUES MANUAL APPLICATION

GSR-Directions-Manual-Application

Step 1.Dilute solution 1-1 with water.

Step 2. Apply to the surface and leave for 5 minutes.

Step 3. Scrub surfaces and grout joints to release the grout residue.

Step 4. Sponge up or extract released residues and rinse with water.

Step 5. Allow surfaces to dry before allowing traffic.

DIRECTIONS FOR USE:FLOORS-REMOVING CEMENT AND GROUT RESIDUES MACHINE APPLICATION

GSR-Directions-Machine-Application

Step 1.Dilute solution 1-1 with water.

Step 2. Apply to the surface and leave for 5 minutes.

Step 3. Scrub surfaces and grout joints to release the grout residue.

Step 4. Sponge up or extract released residues and rinse with water.

Step 5. Allow surfaces to dry before allowing traffic.

REMOVING EFFLORESCENCE,WATER AND RUST STAINS FROM THE SURFACE OF STEPS AND RISERS.

Removing efflorescence,water,rust from steps and risers

Step 1.Decant solution into spray bottle and label clearly. Surfaces should be as dry as possible before application.

Step 2. Spray the solution onto the surface making sure to work in manageable areas at a time.

Step 3. Agitate immediately using a short haired stiff bristled brush. Repeat application until residues are removed.

Step 4. Rinse well with plenty of cool water. This should be done at least twice.

Step 5. Allow surfaces to dry naturally.

DIRECTION FOR USE- REMOVING CEMENT RESIDUES FROM WALLS……

Removing cement residue from walls

Step 1. Dilute solution 1 :1 in water.

Step 2. Apply to the surface of the tiles using a microfibre cloth.

Step 3. Scrub immediately using a black emulsifying pad.

Step 4. Rinse with water several times.  Change rinsing water frequently.

Step 5. Allow surfaces to dry naturally.  On higher glazes buff with a dry cloth to finish.

 

FURTHER INFORMATION – CLEANING:
After applying the cleaning solution work in teams of two. One operator should agitate the surface using mildly abraisive pad or rotary machine.The other operator should use a sponge and water or wet vac for immediate rinsing & extraction. This will prevent released dirty residues reabsorbing into the surface and greatly reduce the drying time of surfaces. If a scrubbing machine is used, use cool water only within the tank on the machine. Do not put intensive cleaning solution through the machine as this will impair it’s effectiveness.
If applying to walls, steps or risers start on the top and work down. Try to work in manageable areas at a time and make sure to rinse well with plenty of water after each application. Rinsing should be repeated at least 2 times after cleaning. In areas where the staining is deep repeat the process until all of the stains have gone.

USEFUL EQUIPMENT: 4pc pole, pad holder, black emulsifying pad or rotary scrubbing machine with onboard water tank, stiff brush attachment for the machine, wet vac, buckets, sponges, absorbant towels (for spillage control), Plastic film and masking tape for covering and protecting any surfaces not to be cleaned. Avoid prolonged contact with metal surfaces. Rinse immediately. Ensure that any sensitive surfaces not to be cleaned are properly covered and protected before beginning. Ensure that gloves and eye protection and suitable clothing are worn at all times.

 

This information is offered without guarantee. The material should be used so as to take account of the local conditions and the surfaces to be treated. In case of doubt, the product should be tried out in an inconspicuous area

Sealing Stone Outside.

Limestone, Sandstone, Travertine, Marble, Slate, Granite, concrete:
Regardless of what type of flooring you choose, the likelihood is it will require some form of sealing.

This is because natural stone is porous, and therefore if left unsealed, any moisture will be soaked up by the stone making it very difficult to remove, and potentially leaving the surface permanently stained (sometimes even fallen leaves can cause stains).

The best way to prevent all this is to seal the stone.

When you seal a stone, you are essentially filling any voids or pores of the stone with the sealer. This prevents any further liquid to absorb in to the tile, as demonstrated here with this close up shot of a water droplet on a tile sealed with LTP Mattstone.

When sealing natural stone outside it is important to use a breathable impregnating sealer, this will allow the transition of moisture from underneath.
Examples include LTP Mattstone H20 & LTP External Stone Sealer both are water based breathable sealers and ideal for use outside.

It is important to note that all stones located outdoors are susceptible to a condition known as efflorescence.
This blooming is caused by water moving through the substrate of a material and carrying minerals and salts found in the mortar bed, grout, soil or the stone itself.
We have a blog here all about efflorescence.

Its also very important when laying Natural stone to make sure that its fixed on a full bed of adhesive and not spot fixed.
The end result could look like this if its spot fixed.
Spot fixing issue Sandstone

If this has already happened to your patio, we have a blog here.

When sealing different natural stones, what will vary the most will be how many coats the stone will need before it is fully sealed.
Each stone exhibits different levels of porosity. A tumbled Limestone may have a higher porosity level than a Honed and filled Limestone.

Sealing natural stone with Mattstone H20

Shake bottle before use.

Test the porosity of your stone with water and a teaspoon, using the LTP porosity test.

Once surfaces are clean and dry, apply the product to the surface evenly using a sealant applicator pad, brush or soft cloth.

When sealing its important not to over apply the sealer and redistribute excess, avoid letting the sealer pool on the surface, as this can cause white marks to appear on the stone when it dries.
On highly absorbent surfaces apply several coats wet-in-wet.
After 15 minutes, remove any excess sealer with an absorbent cloth. Do not allow residues to dry on the surface.
Do not walk on the surface for 3 hours.

Sealing natural stone with External stone sealer.
Apply evenly to the surface using a foam roller or paint brush. On more absorbent surfaces apply further coats at hourly intervals until the surface is completely saturated. Remove any residual sealer if still visible after one hour.

Cleaning Tiles Outside

Before you start sealing your stone it is important to make sure your stone is clean and dry, other wise you will just seal in dirt and grime.

Old layers of sealer, dirt residues and light deposits of organic matter and algae must be removed from the surface and pores of the stone.

This can be done by either using LTP Grimex which is a intensive cleaner or LTP Mouldex Paving Cleaner.

To Clean with LTP Grimex, dilute 1:3 with water, apply to the surface with a sponge or water brush and leave to sit on the surface of the tiles for as long as it takes for the dirt to release. (5-30 minutes depending upon the level of dirt). If areas look as if they are drying out just add a little more solution to keep the area wet.

Agitate the surface with a stiff deck brush after approx 10 minutes (scrubber machines can be used).

Continue to scrub while adding clean water. Remove residues from the surface with water or scrubber machine.

Rinse thoroughly with clean fresh water to remove all remaining residues. Use a power washer if necessary.

Allow the surface at least 24 hours to dry before sealing.

To clean with LTP Mouldex Paving Cleaner, Shake well before use.
Surfaces to be treated should be completely dry before application.
Pour solution undiluted directly onto the pavers and spread out evenly using a sponge or paint brush, Garden sprayers can also be used and leave for a minimum of 1 hour.

Apply a little water and agitate with a stiff Deck brush or emulsifying pad to release the dirt and grime, and then rinse thoroughly using a hose or jet wash.
Some stubborn stains and black spot may require a longer treatment, in which case apply and leave on surfaces overnight. If some black spot remains after treatment, It should fade and disappear after a few days following the treatment. If not: re-apply. Keep pets off at all times during treatment. In case of contact with metals, fabrics and painted surfaces rinse with water immediately. Do not use on warm surfaces. Do not apply if rain is imminent. Avoid contact with ponds & plant life: if contact is made rinse well with plenty of water.

General Maintenance.
Weekly or daily depending on conditions, use a hose and a brush to remove any debris that may be lying on the stone.
Then annually if required use LTP Grimex, this will remove surface dirt and grime, possibly every 6-12 months depending on condition.
Dilute Grimex 1:3 parts water and apply the solution on to the surface and agitate.
Leave for 10 minutes before agitating again and then rinse with water.
Allow 24 hours to dry and then if necessary re-apply a light coat of sealer.

PLEASE NOTE: Always follow the detailed instructions on the product labels. Protect stone surfaces from contact with acidic substances. Do not use abrasive materials on honed or polished stones. Avoid using normal detergents or strong bleach cleaners on sealed surfaces as they will gradually remove the protective seal.

Please note that this information is offered as general guidance only and without guarantee. Your specific circumstances may need an alternative approach. In case of doubt, any process should be tried out in an inconspicuous area before general application.

 

How do I clean my external paving?

Featured

Patio’s can give that refined and uniform look to a garden area, a clean cut from grass to stone, and when newly laid they look fantastic.

olive-limestone

If you had them laid before the winter months however they probably won’t look the same now as they once did. With the amount of rain that we have had over the last few months, the probability is that you will have some form of green growth on the tiles.

This green growth is a mix of Algae, moss and lichen which builds up on the tiles, normally more common in areas of higher rainfall, as this is the perfect place for algae to grow, high rainfall and with areas for the algae to cling to.

However this isn’t the end of your patio, as this can be easily fixed with the correct tools.

Cleaning Patios With LTP Mouldex

Firstly you will want to brush the stone with a stiff bristle deck brush to remove any leaves, dirt or debris from the surface of the stone.

Making sure the area is now free of loose debris, pour LTP Mouldex direct on to the stone and spread out over the area with a brush or sponge. (Garden sprayers can be used)

Black limestone with LTP mouldex applied on it with a sponge.

Leave for a minimum of one hour, then add a little water and agitate with a emulsifying pad or stiff deck brush to help loosen algae, dirt and grime.

After a minimum of 1 hour, agitate with emulsifying pad.

After a minimum of 1 hour, agitate with emulsifying pad.

Rinse thoroughly with water. Garden hoses and jet washes can be used. Be careful though as jet washes force water at the surface at high pressures and can cause damage to some stones.
Some stubborn stains and black spot will require longer treatment, in which case apply and leave overnight.

Rinse well with plenty of water

Rinse well with plenty of water

Once fully dry, (normally 24 hours) we recommend sealing with LTP Mattstone H20, this will prevent moisture and organic molecules from absorbing into the surface.

Black Limestone once cleaned and sealed

Black Limestone once cleaned and sealed

LTP Mouldex is a highly effective HSE registered product which has been developed to Help restore natural stone and paving to its original colour.

Grey Limestone with LTP moudlex.

Grey Limestone with LTP moudlex.

KILLS & REMOVES:

  • Algae
  • Black Spot
  • Mildew
  • Mould
  • Lichen
  • Fungus
  • Pollution
  • Pollen stains

Anti-bacterial action helps prevent re-growth.

Suitable for use on all external stones and concrete paving.

Simple to use….apply and leave….scrub and rinse.

The fast acting formula will restore external paving and help prevent re growth.

Protecting stone surfaces after treatment with LTP Mattstone H20 will further reduce the possibility of black spot and mould spores from returning. It will also help prevent deep staining from falling organic matter and make any future cleaning much easier.

Grey Limestone After cleaning and sealing.

Grey Limestone After cleaning and sealing.

One 5ltr can will treat up to 50 sq.m deepending upon the extent of soiling.

LTP Mouldex 5ltr only £39.54 Inc VAT.  (click here to buy or find your nearest stockist)

2_73_e

For further information on the application of LTP Mouldex watch the video below.

Please note that this information is offered as general guidance only and without guarantee. Your specific circumstances may need an alternative approach. In case of doubt, any process should be tried out in an inconspicuous area before general application.

Roaming in Romania

Sales Director Mark Atkins

Sales Director Mark Atkins

Last week the team from LTP flew to Bucharest for a one day workshop with power point presentations and practical demonstrations on cleaning sealing and aftercare for stone, travertine marble, slate and granite.gama_ltp-1024x729

The venue for the presentation was the stunning new showroom and offices of Piatra online who as well as being Romania’s highest profile stone merchant are also LTP’s distributor for the country .http://blog.piatraonline.ro/conferinta-piatraonline-ingrijirea-si-intretinerea-pietrei-naturale/

The demand for stone is growing steadily in Romania as more and more people are made aware of its natural qualities and beauty. This resulted in a high attendance for both presentations which were also filmed live for broadcast on Youtube.https://www.youtube.com/user/sergiudedu/videosRomania workshop on LTP products

ingrijirea-pietrei-naturale-piatraonline-730x300

Mark Atkins with LTP’s MD Richard Osborne

After the presentation the floor was opened for a question and answer session as well as providing opportunities for the delegates to try some of the practical demonstrations for themselves.

Sales Director, Mark Atkins, commented that whilst he has always been impressed by the dedication interest shown in the subject following many similar visits over the past 5 years, he felt that this was the best yet.   He also added that after 5 years he was becoming quite an expert on the restaurants in Bucharest which he felt rate amongst the finest in Europe

 

 

Natural Stone – Pedestrian Walkways & Driveways

LTP_Sealing_Cobblestone_ Walkways_and_Driveways_18

OBJECTIVE: SEAL STONE SURFACES TO PROTECT FROM DIRT AND GRIME & MAKE STAIN REMOVAL EASIER.

LTP Mattstone H20 is both hydrophobic and oleophobic and offers excellent resistance to staining and moisture ingress. If sprayed onto the surface a single coat is normally sufficient, if brushed two coats. The low viscosity allows the active ingredients to absorb into the surface and dry, to provide an in depth mesh of protection within the pores of the stone without creating a film or altering the surface character. Despite being extremely repellent the treated surfaces remain breathable. Dirt and moisture are prevented from absorbing making removal much easier. Ensure that the natural stones are dry and free from as much dust and dirt as possible before treating.

SEALING:        LTP MATTSTONE H20 (environmentally friendly)       5ltr containers

Fill sprayer with 5 litres of LTP Mattstone H20, set pressure to 1 bar. Hold nozzle of the sprayer approximately 50cm from the surface to be treated and apply evenly using a LTP-MattstoneH20_5L_Websweeping motion.
SPRAYERThe sealer will take about 15-20 minutes to absorb into the stone. Gloves, eye protection and face mask should be worn. Two hours after application test a small area for resistance to moisture by flicking a little water onto the surface.
If water beads, enough sealer has been applied. If moisture absorbs, a second coat may be need to be applied. Treated surfaces will take about 3 days to become fully resistant. If Spraying equipment is not available apply using a roller or large paint brush, making sure to work the sealer into any uneven edges of the stone.
Approx coverage: 5ltrs = 50M2

TDS: http://upload2.evocdn.co.uk/ltp/uploads/download/2_31_tds-mattstone-h20.pdf
MSDS: http://upload2.evocdn.co.uk/ltp/uploads/download/2_0_msds-mattstone-h2o-clp-ghs.pdf

AFTERCARE:    LTP POWER STRIPPER (water based solvent free) 5ltr containersLTP-Powerstrip5L_2011_Web

PERIODICALLY/WHEN REQUIRED spray and scrub surfaces clean. Scrubber dryer

machines can be used in conjunction with LTP Power stripper. Dilution should be 1 part Power stripper with 20 Parts water. This cleaner will help assist removal of general dirt and grime, chewing gum and stains from pollution from the treated external stone surfaces. Approx coverage: 5 ltrs : 500M2

TDS: http://upload2.evocdn.co.uk/ltp/uploads/download/2_21_tds-powerstripper.pdf
MSDS: http://upload2.evocdn.co.uk/ltp/uploads/download/2_56_msds-power-stripper-clp-ghs.pdf

 

IMPORTANT NOTES: 
Provided the surfaces are correctly sealed, protection should last 3-4 years before considering applying a top up coat.
After intensive cleaning to remove graffiti or other staining, and once dry, always test for moisture ingress. If evident, cleaned areas should be re-sealed.
When using Mattstone H20, gloves, eye protection and if spraying a face mask with appropriate filter should be worn.
This information is offered without guarantee . The material should be used so as to take into account of the local conditions and the surfaces to be treated. In case of doubt, the products should be tried out in an inconspicuous area before general application. 

Has your Natural Stone been damaged by Household Cleaner?

We were contacted recently by a customer whose pet had a little accident on their Stoneworks Tumbled Pietra Limestone and tried to remedy it by spraying CIF Bathroom cleaner on it, the result is shown in the photo below!

Stone damaged by Cif Spray

Stone damaged by Cif Spray-Image supplied by Stone Works Ltd

Our response to help rectify was…………….

LTP Grimex should be used to clean the surface of the stones that have been damaged by the CIF spray. This will help to neutralise the reaction that has caused a change in the character of the stones surface. The Lighter marks will still remain following cleaning, but LTP Grimexshould appear a little darker.

Remember to work on the entire piece of stone and not just the areas that are affected. This should be done in a way that does not allow the cleaning solution to spread over onto neighboring tiles, so whole pieces of stone, but only up to the grout joints.

Apply LTP Grimex diluted 1 : 3 with water and agitate the surface….leave for 10 – 15 minutes….agitate again and then rinse well using a sponge and water.

Leave the stone to dry.

 

Apply LTP Stone Oil to the surface and allow to absorb. Check the surface after 45
LTP-StoneOil5LTin_1L_Grp_Webminutes and then wipe up any excess from the surface. ThisLTP-Mattstone5L,1L_500ml_Grp_Web should be repeated until the colour of the stone has been restored. For extra protection and after a 24 hour curing time for the Oil a coat of LTP Mattstone can be used over the top.

 

LTP-Master500mlSpray_2011_Web

For dealing with spillages quickly when they occur we would suggest LTP Stonewash Spray.
This is a spray and wipe cleaner which will remove spillages without compromising the seal or damaging the surface of the stone.

For daily/weekly mopping use LTP Waxwash. This cleaner is PH Neutral and contains a trace of linseed oil, which makes it ideal for cleaning and embellishing sensitive sealed surfaces. A 1 ltr bottle is enough solution to wash a 20 sq.m LTP-Waxwash1L_Webfloor 40 times.

Hope this helps…

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This information is offered without guarantee.  The material should be used so as to take account of the local conditions and the surfaces to be treated.  In case of doubt, the products should be tried out in an inconspicuous area before general application.

Cleaning, Sealing and maintaining stone surfaces

Cleaning, Sealing and Maintaining Stone Surfaces 

Natural stone has been used on floors and walls for centuries. As with all natural materials, it does need a certain level of care.

 

Natural Stone Surfaces – Internal Application

The following instructions are appropriate for Travertine, Limestone, Marble, Sandstone, Terrazzo and some Granite.

STEP ONE: INITIAL CLEANING 

Before sealing natural stone must be thoroughly cleaned to make sure that sealing of the surface can be achieved effectively. This is true of newly installed surfaces, as well as existing, due to the contamination that can occur during fitting. Equipment recommended for this step is a bucket, mop, white emulsifying pad, 4pcs pole, sealant applicator & pad holder, microfibre cloth, scrubber or scrubber dryer machine.Stone_cleaning_and_seal_Pack1

Newly installed surfaces

LTP recommends LTP Grimex as the solution for cleaning newly installed natural stone surfaces before sealing. LTP Grimex removes grease, dirt and grime from the surface ensuring the natural stone surface is best prepared for application of a sealing product.

Cleaning newly installed stone surfaces

  1. Dilute LTP Grimex 1:10 with water.
  2. Apply solution to the surface with a mop or sponge. Under floor heating must be off.
  3. Agitate to release the residual dirt and grime from the surface with a mildly abrasive pad (LTP White emulsifying pad).  Rinse well using a sponge & water.
  4. Do not use acidic cleaners, such as LTP Grout Stain Remover.
  5. Allow the surface to dry (preferably for 24 hours).

Cleaning natural stone with LTP Grimex

Refurbishing used and heavily soiled stone surfaces

  • Before sealing the stone must be thoroughly cleaned. Old layers of sealer, residues from aftercare products and deposits must be removed from the surface and pores of the stone. Film forming layers of sealer should be removed with LTP Solvex before washing with LTP Grimex.
  • Depending upon the levels of dirt, dilute LTP Grimex 1:3 with water. Apply with a sponge or cloth and leave to sit on the surface of the tiles for 5-10 minutes.
  • Agitate the surface with a white emulsifying pad (for polished, smooth or honed surfaces) or scrubbing-brush ( LTP Deck brush) for Rough Cut surfaces and leave for a further 5 minutes (scrubber machines can be used).
  • Continue to scrub while adding clean water. Remove residues from the surface using a cloth or scrubber dryer machine.
  • Rinse thoroughly with clean fresh water to remove all remaining residues.
  • Allow the surface to dry for a minimum of 24 hours before applying the protective seal.
  • For the removal of other types of dirt: Do not use acid based cleaners on limestone or marble. If you are unsure please call our helpline on +44 (0) 01823 666213 for advice.

STEP TWO: PROTECT YOUR NATURAL STONE SURFACE FROM STAINS

To protect stone surfaces and help prevent staining natural stone should be sealed. LTP recommends applying LTP Mattstone for a natural (invisible finish) or LTP Colour Intensifier & Stainblock for an enhanced appearance. LTP Colour Intensifier & Stainblock deepens the colour and enhances the appearance of the stone surface.

Sealing prepared natural stone surfaces

  1. Surfaces must be clean and dry. Ensure under floor heating is off.
  2. Apply the product to the surface evenly using either LTP sealant applicator,a sponge, brush or soft cloth.
  3. Redistribute to remove excess product and avoid pooling on the surface.
  4. Allow to dry. Do not walk on the surface for at least one hour.
  5. Protect from water for 24 hours and do not wash surfaces for at least 3 days.

Sealing natural stone with LTP Mattstone, LTP Mattstone H20 or LTP Colour Intensifier.

  • LTP Mattstone H20, LTP Mattstone and LTP Colour Intensifier will make the surface water and oil repellent.
  • Prevents stains, aids cleaning and simplifies the removal of surface stains.
  • Provides an invisible barrier of protection that will not greatly alter the surface character.
  • There are no health concerns once the product has properly cured.
  • LTP Mattstone H20, LTP Mattstone and LTP Colour Intensifier are micro porous and so can be used on surfaces that have no damp proof course.
  • Suitable for internal and external use.
  • If surfaces are properly maintained we recommend touching up the protective treatment every 3-4 years.

NB. Always test the product on an inconspicuous area. Wet or non absorbent surfaces cannot be treated. LTP Mattstone H20, LTP Mattstone and Colour Intensifier are impregnating sealers which need to fully absorb. Do not allow the product to dry on the surface. Carefully buff with a soft cloth or machine to remove any excess. Remove unabsorbed impregnating sealer, if left to dry on the surface, by rubbing over with a little more sealer. Some stones may be darker after application. Acidic substances, if left on the surface, may damage stone.

STEP THREE: MAINTAINING YOUR NATURAL STONE WALL OR FLOOR

Using the correct maintenance product will increase the life of your floor seal, provide additional protection against staining and make sure your floor looks great. Common household cleaning products often contain harsh substances that can breakdown sealing products applied to stone. For this reason LTP recommends using LTP Waxwash on floors and LTP Stonewash for surfaces.

LTP Waxwash (for floors): Formulated for use on unglazed tiles such as travertine, stone, limestone, slate, terracotta and quarry. Ideal for washing floors sealed with LTP Mattstone H20, LTP Mattstone or LTP Colour Intensifier. Use routinely in place of normal detergent.

LTP Stonewash (for walls): This gentle surface cleaner is formulated for use on limestone, marble, granite, slate and polished porcelain. Will clean without breaking down and removing protective seals.

Regular maintenance on stone floors

  1. Add one cap full of product per litre of water in a bucket.
  2. Wipe surface with the solution. Do not rinse.
  3. Allow to dry. Do not walk on the surface during drying time – 20 minutes.

Maintaining natural stone with LTP Waxwash

A one litre LTP Waxwash will wash a 20 sq.m floor 40 times.

PLEASE NOTE: Always follow the detailed instructions on the product labels. Protect stone surfaces from contact with acidic substances. Do not use abrasive materials on honed or polished stones. Avoid using normal detergents or strong bleach cleaners on sealed surfaces as they will gradually remove the protective seal.
At LTP we believe in helping to provide solutions and this is why we offer
a no obligation LTP TECHNICAL HELPLINE, so please give us a call on
+44 (0) 1823 666213 and we will be happy to help you. 
Visit www.ltp-online.co.uk to purchase from the LTP Range of products or find out more about us.