Everbuild Block Guard

£33.85£128.35Including VAT


5 or 25 litres

SKU: N/A Category:


Everbuild Block Guard is a block paving seal and joint sand stabiliser based on a clear solvent based acrylic coating to bind jointing sand and form a durable seal over block paving and other mineral pavers/flags. It penetrates deeply into pavers and jointing sand and then cures by solvent evaporation. Resistant to sunlight, water, oil and petrol. Block guard also contains a fungicide to resist the growth of fungus, mould and weeds.

The seal dries to a mid sheen with a non slip finish. The area to be sealed needs to be clean and should be applied evenly using a brush, roller or foam neoprene squeegee in temperatures between 5 and 35 degrees celsius.

A 5 litre tin will cover approximately 11 square metres depending on the porosity of the blocks and joint width. Also available in 25 litre cans.


  • Long lasting acrylic based formula.
  • Helps facilitate easier cleaning.
  • Contains a powerful fungicide to help prevent the growth of mould, fungus or weeds.

Areas for use

  • Block paved drives and pathways.
  • Natural stone patio areas.
  • Cement based flagstones.


  • Always read label before use and wear suitable protective equipment.
  • All pavers/flags/blocks and artificial stone must be laid for a MINIMUM of  3 months before application.
  • Always test a small area before applying to the entire surface.
  • Do not apply to non porous or previously treated surfaces (unless sufficiently weathered to allow penetration)
  • Do not apply to wet or saturated surfaces.
  • Do not apply in direct sunlight.

Surface preparation
Jointing sand should comply with BS6717 and BS6677 or national equivalent. Ensure the paving surfaces to be treated are clean and free from any mould or fungal growth. If oil stains are present, remove with detergent and hot water. Ensure cement composite pavers are thoroughly degreased and free from release agents which will affect penetration.  If mould and fungal growth are present, clean surfaces with EVERBUILD MOSS AND MOULD REMOVER as directed. All artificial stone (cement based) and all block pavers must be left for three months minimum after placing before over coating with this product. This will allow salts to leach out which otherwise may cause unsightly white patches appearing beneath the sealer, especially when the patio is wet. Application to a wet or water saturated surface will give poor adhesion. In very dry and hot conditions, increase humidity by sprinkling surface with water, then leave pavers to dry. This will leave sufficient moisture for polymerisation to take place.


Apply BLOCK PAVING SEAL direct from the container using a watering can and long pile roller.  Work well into joints for maximum penetration. DO NOT LEAVE SURPLUS MATERIAL ON THE SURFACE. Ensure an even and thorough coverage, especially on textured flags/pavers where “ponding” of the product must be avoided. An uneven coating will give a blotchy/white appearance to areas where excess product has been allowed to settle and dry. These areas will look worse in wet conditions. Once finished, do not re-seal or store a partially used container. The quality will rapidly deteriorate and carbon dioxide may be released which could cause container rupture. Leave part used kegs open and add a little water to cure the product for disposal.

EVERBUILD BLOCK PAVING SEAL will only work where it can penetrate into the surface. Do not apply to non-porous surfaces. Do not apply this product to painted surfaces or surfaces that have previously been treated with stearate or silicone based water seals e.g. EVERBUILD WATERSEAL.

Some surfaces, especially certain natural stones may darken slightly when treated. ALWAYS TEST A SMALL AREA FOR COMPATIBILITY PRIOR TO FULL APPLICATION.

Product is slip resistant when dry. Obviously, water will affect this property adversely.

Do not apply this product if rain is imminent (within 5 hours at 20˚C). BLOCKGUARD can be trafficked after 12-24 hours depending on ambient temperature. Clean all tools with turps or white spirit.

Collection only: Please note this product is for collection only due to the nature of the materials. 

Additional information


5 litre, 25 litre


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