DOWSIL™ 789 Silicone Weatherproofing Sealant is a high-performance, one-part, neutral-cure silicone sealant specifically formulated for weather sealing of building facades. It offers excellent adhesion to a wide range of building materials including glass, aluminum, painted surfaces, concrete, and other porous and non-porous substrates without the need for a primer in many applications.
Key Features:
Excellent weather and UV resistance
Long-term flexibility and durability
Neutral cure – low odor and non-corrosive to metal
Accommodates dynamic joint movement
Easy to apply with standard caulking equipment
Applications:
Expansion and control joints
Perimeter joints around windows and doors
Precast concrete panel joints
Curtain wall and façade sealing
General weather sealing in high-movement areas
Packaging: Available in 280ml cartridges.
Colors: Commonly available in Black, White,clear.