Dow Corning 791 Waterproofing Silicone-White-Box of 12

The Dow Corning 791 Waterproofing Silicone – White (Box of 12) is a high-performance, one-part weatherproofing silicone sealant designed for sealing and protecting building joints from the effects of weather and environmental exposure. It provides excellent unprimed adhesion to a wide range of porous and non-porous construction materials, including brickwork, masonry, timber, PVC, glass and most metals.

Ideal for professional construction and glazing applications, Dow Corning 791 offers excellent flexibility, weather resistance and long-lasting performance. It is particularly suitable for weathersealing curtain walling, building facades, expansion joints and window frames.

BENEFITS

• High-performance one-part silicone sealant
• White finish
• Supplied in a convenient box of 12
• Highly flexible
• Joint movement capability of ±50%
• Excellent unprimed adhesion to many porous and non-porous substrates
• Excellent resistance to weathering
• Resistant to ozone and UV radiation
• Performs well in temperature extremes
• Conforms to ISO 11600-F&G-25LM
• Meets ISO 9047 Class 50%
• Approximately 20–30 minutes working time
• Fast cure with approximately 2 hours tack-free time
• Application temperature range of -25°C to +50°C

APPLICATIONS

Ideal for sealing and weatherproofing:

• Curtain walling
• Building facades
• Expansion and movement joints
• Window and door frames
• PVC installations
• Glass and glazing applications
• Brickwork and masonry
• Timber
• Most metal surfaces
• General external construction joints

DIRECTIONS FOR USE

Ensure all surfaces are clean, dry and free from dust, grease and loose material before application. Apply the silicone evenly into the joint using a suitable sealant gun.

Tool the sealant immediately after application to ensure good contact with the surfaces and achieve a smooth finish. Allow sufficient time for the sealant to cure before exposing the joint to demanding conditions.

Always ensure the product is suitable for the intended application and follow the manufacturer's instructions for best results.