Si20 DS – Water Based Sealer and Densifier Ready to Use


SKU: SI20DS Category:


Si20-DS is a water based silicate and siliconate densifier-water repellent sealer for use on most types of porous limestone and concrete building materials.

Si Densifiers & Moisture Barriers – Silicates

Si Chemistry: Silicate based densifiers and moisture barriers are alkaline solutions containing soluble metal silicate salts. They are small molecules that when applied onto a substrate penetrate deep below the surface. They chemically react with cementitious substrates to form a cross-linked silicate polymer that permanently blocks substrate capillaries reducing the movement of water. The substrate becomes significantly denser, harder and stronger and is less susceptible to dusting.

Key advantages

    • Significantly increases density, hardness and strength
    • Excellent dust proofing of substrates
    • Significantly reduces movement of water
    • Minimises efflorescence
    • High penetration into masonry surfaces
    • High wear resistance, UV stable, long life
    • Can be applied to damp or wet substrates

Additional information

Weight N/A
Dimensions N/A



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