Gransil 618
Architectural Post Treatment
Gransil 618 is a primary component supplied as a 52% active silane/siloxane emulsion for the manufacturing of commercial WR products. Gransil 618 reacts chemically with the substrate forming a hydrophobic barrier that prevents water absorption. Treated substrates remain hydrophobic and maintain their appearance. This treatment provides long-lasting protection against a variety of issues, including scaling from deicing salts, pitting, mold & algae growth, and efflorescence.
Key Features
High-Active Silane/Siloxane Emulsion
Concentrated formula that can be easily diluted with de-ionized water, stays stable even at high pH, and instantly adds strong water-beading power to commercial WR coatings.
Deep, Breathable Hydrophobic Barrier
Reacts chemically inside pores to stop liquid water while letting vapor escape, so treated surfaces stay dry without changing color or texture.
Proven Moisture Defense
Achieved a 78.5 % drop in water absorption (ASTM C-1585) and zero permeability in a 20-minute RILEM tube test—equivalent to withstanding 60 minutes of wind-driven rain.
Long-Lasting Surface Protection
Guards concrete and masonry against scaling from de-icing salts, pitting, mold and algae growth, and efflorescence, helping structures maintain appearance and integrity.
Low-VOC & Easy Application
<100 g/L VOC and applies by spray, brush, or roller to concrete, brick, mortar, cinder block, and grout—ideal for both formulators and field crews.
Benefits
✔ 52% actives, dilute easily
✔ -78% reduction in water uptake
✔ Prevents salt accumulation and mold growth
✔ Low VOC compliant
✔ Spray/brush/roll on
Sample Request
See the difference for yourself. Our products are engineered for performance, and we believe you'll notice it from the first application. Request a sample today and experience the quality, consistency, and innovation behind every formula.