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Masonry Sealer

Masonry sealers are penetrating or film-forming treatments applied to concrete, brick, and stone surfaces to consolidate friable substrates, reduce porosity, and improve the adhesion of subsequent architectural coatings. They prevent moisture ingress, efflorescence, and biological growth while providing a stable base for topcoat application. Masonry sealers are essential primers for exterior facade renovation projects and new construction coating systems.

Technical Specifications

pH6.0–9.0
solventWater or solvent
appearanceClear to milky liquid
solidContent5–30%
penetrationDepth2–15 mm on porous masonry

Applications

  • Concrete and masonry surface preparation
  • Exterior facade renovation primers
  • Brick and block sealing
  • Pre-treatment before render or paint
  • Damp-proof course treatments

Key Features

  • Consolidates friable and chalky masonry surfaces
  • Reduces porosity and moisture ingress
  • Improves topcoat adhesion on problem substrates
  • Prevents efflorescence migration

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architectural-coating-additives

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