CoolTherm® SC-309 thermally conductive silicone encapsulant is a two-component system designed to provide excellent thermal conductivity for electrical/electronic encapsulating applications, while retaining desirable properties associated with silicones. CoolTherm SC-309 encapsulant can be either room temperature cured or heat cured for maximum adhesion.

Features and Benefits:

• Low Stress – exhibits low shrinkage and stress on components as it cures.

• Durable – composed of an addition-curing polydimethyl siloxane polymer that will not depolymerize when heated in confined spaces.

• Low Viscosity – maintains low viscosity for ease of component encapsulation compared to other highly thermal conductive materials.

• Environmentally Resistant – provides excellent thermal shock resistance.

• UL Rated – provides excellent flame retardancy; UL 94 V-0 certified.

Shelf Life/Storage:

Shelf life of each component is six months when stored at 5-30°C in original, unopened container. The material must be periodically rotated within its container to maintain maximum shelf life. Settling will occur if not mixed.

CoolTherm SC-309 encapsulant evolves minute quantities of hydrogen gas. Do not repackage or store material in unvented containers. Adequately ventilate work area to prevent the accumulation of gas.