Master Bond EP21TDC-2LO, a room temperature curing, flexibilized, thermally conductive adhesive/sealant and encapsulant. This unique compound has superior tensile shear and peel strength. It has an elongation of less than 50% at 75°F and a Shore D hardness of 36. It offers exceptional resistance to chemicals, thermal shock and impact. The hardened composition is an excellent electrical insulator.