LTP Mouldex External Paving Cleaner

How do I clean my external paving stones?

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Before patio

Before using LTP Mouldex Paving Cleaner

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

After using LTP Mouldex Patio Cleaner

After using LTP Mouldex Paving Cleaner

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.

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)

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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.

Sandstone-Fixing & Sealing Outside.

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We have recently been contacted by numerous customers who have been having problems with spot stains appearing on their sandstone patios.

Sandstone Flags with Spot Fixing Issues.

Sandstone Flags with Spot Fixing Issues.

This is a common problem, so we thought we should share why and how this issue sometimes occurs. The pictures in this post are supplied by customers showing the problems that are occurring.

 

Understanding Sandstone

Many of the imported sandstones, and some limestones and granites,are very porous. If fixing natural sandstone or limestone outside DO NOT SPOT FIX!!

They are not man made concrete pavers and should not be treated the same.

The sandstone should be fixed to an even mortar bed and then each piece of stone back buttered for a solid fix…

This will help illuminate possibilities of staining from moisture and mortar.

Natural stones like sandstone are not as dense as concrete pavers and are full of microscopic capillaries. These capillaries can draw up moisture from mortar through to the face of the stone. The moisture dries out to leave a deposit of mortar residue and minerals within the pores of the stone.Img3701 Sealing too soon after spot fixing can sometimes highlight these issues and also slow down the transition of moisture, suspending the cement residues within the stone.

The introduction of moisture from rain can also further highlight these issues. This is because the moisture collects and dwells within the voids between the mortar spots underneath the stone. As it dries out and the moisture rises carrying more minerals from the sand and cement to the surface of the stone.

Most sealers used for outside use are breathable and allow microscopic transition of moisture, so any trapped moisture is still able to dry out should it become trapped beneath the stone. Sealing does not cause the issues associated with spot fixing nor should it be considered a method for covering up the stains should they occur.

If your stone pavers have been spot fixed, then we would suggest not sealing them for at least 3 months after installation. This should allow for any mortars to full harden and any released minerals to completely dissipate. Clean surfaces well using LTP Power Stripper and leave to dry for 24 hrs. Test the sealer on a small area before general application to make sure that the mortar spots are not highlighted and after a few days make the test area wet and allow it to dry out. If staining does not occur the rest of the surface can be sealed.

If your stone has been fixed correctly into a solid bed then we would suggest a drying time of two weeks before sealing. This should allow enough time for all mortars to fully dry. Solid fixing will not allow any rain water to sit beneath the pavers and dwell. Clean surfaces well using LTP Power Stripper and leave to dry for 24 hrs. Seal using an impregnating sealer and apply as many coats as necessary to completely saturate the stone.

When sealing using an impregnating sealer it is important to remember that the solution needs to fully absorb into the stone without drying on the surface and do not apply in direct sunlight. If sealer is still visible on the surface after 45 minutes saturation has been achieved and any excess should be toweled off. For best results allow at least 3 full dry days after treatment.

 

LTP IMPREGNATING SEALERS SUITABLE FOR EXTERNAL USE

LTP MATTSTONE H20

LTP EXTERNAL STONE SEALER

LTP STONE OIL

 

CLEANING SANDSTONES & LIMESTONE  WITH SPOT FIXING ISSUES

Use: LTP Power Stripper

Apply undiluted to the surface of the stone and agitate using a black emulsifying pad. Add a little water and agitate again. Leave the solution on the surface of the stone for 15 minutes and agitate again. Rinse well with water. Repeat until the stains are no longer visible. Leave to dry for a minimum of 24 hours before sealing. Before re-sealing the whole area test the sealer on a small area before general application to make sure that the mortar spots are not highlighted. Leave to dry and after a few days make the test area wet and allow it to dry out. If staining does not occur then the rest of the surface can be sealed.

CLEANING MORTAR STAINS FROM SANDSTONES AFTER POINTING

Use: LTP Grout Stain RemoverGrout_Residue_Remover_Pack2

Apply un-diluted onto the surface of the stone and agitate immediately using a black emulsifying pad to release the mortar stains from the surface of the stone. Using a sponge and water rinse well immediately after use and change rinsing water after every 5 sq/m.

MOULD, MILDEW AND BLACK SPOT

Use: LTP Mouldex

Spray LTP  Mouldex onto the surface of the stone and leave for 1 hour. Using a black emulsifying pad agitate the surface and rinse well with plenty of water. Repeat until all organic matter has been removed. Re-seal surfaces once thoroughly dry.

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