Momentive RTV560 is a two-part silicone elastomer. It is supplied ready to use with a base compound and DBT (dibutyl tin dilaurate) as the standard curing agent; other catalysts are available for deep section cure, faster cure and automated mixing. It retains elastomeric properties continuously from −115 °C to 260 °C and up to 316 °C for short periods. Work time and cure rate can be varied by the amount and type of curing agent; it cures at room temperature, is solvent free, and offers excellent adhesion with primer and excellent release properties. It is red and pourable. It is used for cast-in-place heat shielding, thermal insulation, low and high temperature bonding, and potting and encapsulation of electrical assemblies.
Typical Properties
- Red, pourable; base viscosity 30,000 cps; specific gravity 1.42
- With 0.5% DBT, work time 2.25 hours and cure time 24 hours at 25 °C
- Hardness 55 Shore A; tensile strength 48 kg/cm² (690 psi); elongation 120%; shrinkage 1.0%
- Dielectric strength 21.2 kV/mm; thermal conductivity 0.31 W/m·K
- Useful temperature range −115 to 260 °C; up to 316 °C for short periods
Use
- For adhesion to non-silicone surfaces, apply a silicone primer such as SS4004 and air dry for at least one hour
| Packing | 1 LB or 12 LB |