KASTAR 789 silicone sealant

 
Kastar 789 Neutral Weatherproof Silicone Sealant – High-Performance Construction Sealant for Outdoor Use
 
 
Product Overview:
Looking for a reliable, long-lasting silicone sealant for exterior construction and glazing? Kastar 789 Neutral Weatherproof Silicone Sealant is a professional-grade, one-component sealant formulated for high-performance weather sealing. It offers excellent adhesion, superior flexibility, and outstanding durability – perfect for sealing glass, aluminum, concrete, and other common building materials.
 
Why Choose Kastar 789?
 
✅ Weatherproof & UV Resistant – Engineered to withstand harsh outdoor conditions, including rain, sunlight, and ozone exposure. Ideal for long-term exterior applications.
✅ Neutral Cure Technology – Non-corrosive and safe for use on metal, concrete, PVC, glass, and painted surfaces. No unpleasant vinegar smell.
✅ Excellent Flexibility & Adhesion – Maintains strong bonds and flexibility over time, reducing cracks and leaks.
✅ Multi-Surface Compatibility – Perfect for curtain walls, aluminum cladding, glass joints, window and door frames, and expansion joints.
✅ Easy Application – Smooth extrusion, easy tooling, and consistent performance in various temperatures.
 
 
Typical Applications:
 
Glass and aluminum sealing
Curtain wall joints
Precast concrete expansion joints
Window and door perimeter sealing
General construction and waterproofing
 
 
Product Specifications:
 
Type: One-component, neutral cure silicone
Temperature Resistance: -50°C to +150°C
Shelf Life: 12 months (unopened)
Packaging: 300ml cartridges 
 
 
Storage Instructions:
Keep in a cool, dry place. Avoid direct sunlight and freezing conditions.