SpecSilane 40 WB 
40% solids water-based penetrating silane sealer
SpecSilane 40 WB is a 40% solids, 100% reactive waterborne silane sealer. This clear, penetrating, breathable water repellent is designed for use on interior and exterior above-grade concrete or masonry surfaces. It penetrates the surface and bonds directly with the substrate, resulting in a surface highly resistant to both moisture and salt.
- Excellent Chloride Screen: Provides superb protection against chloride penetration.
- Water Repellency: Enhances water repellency while maintaining the substrate’s breathability.
- Eco-Friendly: VOC compliant and water-based, reducing environmental impact.
- Durable: Offers long-lasting protection for new and existing concrete surfaces.
- Non-Yellowing: Maintains the natural appearance of the substrate without discoloration.
- Application Versatility: Suitable for decks, pavements, parking structures, ramps, bridges, and marine platforms.
Application
- Surface Preparation: Ensure surfaces are well cured (minimum 28 days), clean, and free from all residues, dust, debris, oil, and other contaminants. Surfaces must be absorptive to allow penetration.
- Application Rate: Varies by surface porosity:
- Porous surfaces: 100-125 ft²/gal
- Broom finish: 100-150 ft²/gal
- Smooth concrete: 150-200 ft²/gal
- Equipment: Apply using a roller, brush, or low-pressure sprayer. Avoid puddles; redistribute any standing material before drying.
Packaging
- Available in 5-gallon pails and 55-gallon drums.
Shelf Life
- Store sealed in a clean, dry area between 45-85°F. Shelf life is one year in unopened containers.
Test Data
- Solids Content: 40% by weight
- VOC Content: Less than 250 grams per liter
- Flash Point: Greater than 200°F
- Specific Gravity: 0.96 at 25°C
- Color: Water clear
- Odor: None
- Water Absorption Test: 0.40% over 48 hours; 1.1% over 50 days
- Scaling Resistance Test: Rating of 0 for “No Scaling”