top of page

PENETRATING SEALERS / REPELLENTS

Unlike surface coatings that sit on top, penetrating sealers soak into the substrate and react chemically within the pores, becoming part of the material itself.

Key Benefits
  • Protection: repels water and moisture from within the substrate rather than relying on a surface film that can crack or peel
  • Resists hydrostatic pressure better than topical coatings in many applications
  • Blocks salts and chlorides from penetrating, which is critical for reinforced concrete (prevents rebar corrosion)
  • Durability: lasts much longer than surface coatings — typically 10–25 years depending on the product and exposure
  • Won't peel, flake, or delaminate because there's no film to fail
  • Handles freeze-thaw cycles well since there's no surface layer to crack

Appearance

  • Natural/invisible finish — doesn't change the look or texture of the surface, unlike coatings
  • No sheen or gloss (unless specifically formulated that way)
  • Breathable — allows moisture vapour to escape from within the substrate, preventing trapped moisture buildup
Practical Advantages
  • Low maintenance — no recoating cycles like you'd have with paint or membrane systems
  • Traffic-ready quickly — no surface film means no waiting for a thick coat to cure
  • Works on damp substrates in some formulations
Common Substrates
  • Concrete, sandstone, brick, pavers, natural stone, and some masonry products.
Limitations to Be Aware Of
  • Won't bridge cracks or fill voids — the substrate needs to be structurally sound first
  • Not suitable for very dense, low-porosity surfaces where penetration is minimal
  • Can't easily be removed once applied

Filters

Filters
bottom of page