DOWSIL™ SH 780 Sealant
DOWSIL™ SH 780 Sealant is a one-part, neutral-cure (oxime-type) RTV silicone sealant designed for general-purpose sealing and bonding applications. It cures at room temperature upon exposure to atmospheric moisture, forming a flexible and durable silicone rubber.
Product Overview
Type : One-part, neutral-cure (oxime-type) RTV silicone sealant
Consistency : Non-sag, suitable for vertical and overhead applications
Cure Mechanism : Moisture cure at room temperature
Appearance : Available in various colors including clear, white, aluminum, gray, light gray, umber, dark brown, black, and stain
Key Features
Ease of Use : One-part formulation requires no mixing; easily extrudes in any weather conditions
Neutral Cure : Non-acidic curing process enables use on a variety of substrates without corrosion
Excellent Adhesion : Adheres well to various materials such as metals (excluding copper/brass), glass, tiles, and ceramics
Weather Resistance : Resistant to ozone, ultraviolet radiation, and temperature extremes
Flexibility : Remains flexible over a wide temperature range (-40°C to +150°C)
Waterproof : Inherently waterproof, suitable for sealing applications exposed to moisture
Applications
Construction : Sealing joints in building substrates, including window and door frames
Industrial : General-purpose sealing and bonding in various industrial equipment
Plumbing and Roofing : Adheres to materials like steel, aluminum, brick, concrete, ceramic, and fiberglass
Typical Properties | |
Property | Value |
Tack-Free Time | Approximately 6 minutes |
Density | 1.03 g/cm³ |
Hardness (Shore A) | 19 |
Tensile Strength | 1.8 MPa |
Elongation at Break | 600% |
Temperature Resistance | -40°C to +150°C |
Safety and Handling
Storage : Store in a cool, dry place away from direct sunlight
Handling : Use in well-ventilated areas; avoid contact with skin and eyes
Personal Protective Equipment : Wear appropriate protective gear, including gloves and eye protection
Disposal : Dispose of in accordance with local regulations