Durex® Silane WRS 40 is packaged in 18.9 L (5 gal) pails. This product is available in clear.

Average coverage rate: See Data Sheet, 4.8 m2/L (200 ft2/gal).

Silane WRS 40

Clear 40% Silane Breathable Water Repellent Sealer

Product Description:
Durex® Silane WRS 40 is a single component silane based water repellent sealer which is formulated to be used as a high performance waterproofing and water-repellent alkoxy silane sealer ideal for protecting concrete and masonry surfaces.

Durex® Silane WRS 40 has the ability to penetrate deep into the masonry or concrete substrate. The deep penetration protects it from weathering, ultraviolet radiation and abrasion. Durex® Silane WRS 40 will significantly reduce chloride ion intrusion and will enable the concrete and masonry to breathe. Corrosion activity can therefore be reduced.


  • Alkali resistant
  • Excellent moisture vapour transmission
  • Meets ASTM C-309 requirements for unit moisture loss (< 0.055 g/cm2 of surface at 72 hours)
  • Meets ASTM C-1315 requirements for water retention
  • Longer lasting water repellency properties
  • Deep substrate penetration
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