Momentive IS802 is a one-component, ready-to-use white silicone adhesive sealant with a paste-like consistency. It cures to silicone rubber on exposure to atmospheric moisture at room temperature (acetoxy cure; acetic acid vapours are released during cure). Because it flows only under external pressure, it can be applied to horizontal, vertical and overhead surfaces in thicknesses up to 6 mm (1/4 in), and has enough uncured body to hold small objects while curing. IS803 (black), IS808 (translucent) and IS800.09 (aluminium) are identical materials differing only in colour.
Features
- Excellent electrical insulation; excellent weatherability and ozone and chemical resistance
- Self-adhesion; low temperature flexibility and high temperature performance
Typical Properties
- Specific gravity 1.04; tack-free time 25 min
- Cured: hardness 23 Shore A; tensile strength 20.6 kg/cm² (300 psi); elongation 450%
- Dielectric strength 20 kV/mm (500 V/mil)
- A 3 mm section cures through in about 24 hours at 25 °C and 50% RH
Use Notes
- Recommended primers: SS4004P, SS4044P, SS4179
- Not for applications where corrosion of copper, brass or other sensitive metals is undesirable
- Food contact: FDA and USDA status; listed under NSF Standard No. 51; UL recognised (file no. E36952)
| Packing | 10.1 OZ |