PROSOCO Siloxane WB Concentrate – High-Performance Water Repellent Concentrate (5 Gallon)

DILUTABLE WATER REPELLENT FOR MASONRY

PROSOCO Siloxane WB Concentrate is a high-performance, water-based water repellent designed for deep penetration and long-lasting protection of concrete and masonry surfaces. This concentrated formula is mixed with water on-site, making it a cost-effective solution for large-scale applications.

Once diluted, it penetrates deeply and chemically bonds within the substrate to protect against water intrusion, staining, and deterioration. Suitable for both dense and porous materials, Siloxane WB Concentrate is ideal for vertical and horizontal applications, including precast and cast-in-place concrete.

FEATURES / BENEFITS

• Concentrated formula—dilute with up to 19 parts water
  
• Cost-effective for large surface areas
  
• Deep penetration for long-lasting protection
  
• Suitable for dense and porous masonry surfaces
  
• Effective on vertical and horizontal applications
  
• Ideal for precast and in-plant concrete treatment
  
• Water-based alternative to solvent-based repellents
  
• Resists water penetration over hairline cracks (≤ 0.02")

TECHNICAL DATA

• Form: Clear, amber liquid; vinegar-like odor
  
• VOC Content: 16–41 g/L (as diluted)
  
• pH: Not applicable
  
• Coverage Rate: 50–200 sq. ft. per gallon (diluted)
  
• Shelf Life: 1 year (unopened)
  
• Freeze Point: < –22°F (–30°C)
  
• Flash Point:
  • 77°F (25°C) (concentrate)
  • 140°F (60°C) (1:9 dilution)
  • 145°F (62°C) (1:14 dilution)
    
• Total Solids: 48%
  
• Weight per Gallon: 7.9 lbs

AVAILABLE SIZES

• 5 Gallon

RESOURCES

• Product Data Sheet
• Product Data Sheet (Spanish)
• Safety Data Sheet
• Safety Data Sheet (Spanish)
• SDS Canadian French
• VOC Compliance
• LEED Verification Letter
• SCS Certification
• LBC Red List Verification