Protective Coatings & Sealers
Silane WRS 40
Clear 40% Silane Breathable Water-Repellent Sealer
Coverage

Concrete: 4.8 m²/L (200 ft²/gal) Walls and Building Envelopes: 5 m²/L (204 ft²/gal) 

NMS
07 19 16
Product Description
Technical Performances
Documentation
Description

Durex® Silane WRS 40 Clear 40% Silane Breathable Water-Repellent Sealer is a single-component silane-based water-repellent sealer that is formulated to be used as a high-performance waterproofing and water-repellent alkoxy silane sealer ideal for protecting concrete and masonry surfaces.

Advantages
  • 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
Uses

Durex® Silane WRS 40 can 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.

• Parkades
• Ramps
• Traffic decks

Physical Properties
 
Colour

Clear

Resin Type

Alkoxy silane

Coverage
  • Concrete: 4.8 m²/L (200 ft²/gal)
  • Walls and Building Envelopes: 5 m²/L (204 ft²/gal)
  • Note: Actual coverage will vary depending on the porosity and composition of the substrate
Cure Time @ 23°C (75°F)
  • To touch: 1 hour
  • Fully cured: 12 hours
V.O.C. (without water)

< 350 g/L

Non-Volatile

40% by weight

Reducer/Clean-Up

Mineral spirits or isopropyl alcohol


Performance Properties
Method Results
Specific Gravity

ASTM D333

  • 0.86 kg/L
  • 6.8 lb/gal
Moisture Penetration and Absorption
  • Moisture Penetration through masonry CMU (ASTM E514)
  • Reduction in Water Absorption vs. Untreated (ASTM C67)
  • Reduction in Water Absorption vs. Untreated (ASTM C140)
  • 99.5%
  • 99.6%
  • 97%