The MasterSil 972TC-LO is a thermally conductive, electrically insulative two part silicone that meets NASA low outgassing specifications. It is particularly well suited for use in vacuum environments as well as applications in the aerospace, electronic, opto-electronic and specialty OEM industries. This two part silicone system offers convenient handling for bonding, sealing, coating and potting.
MasterSil 972TC-LO is an electrically insulator that has a thermal conductivity of 7-9 BTU•in/ft²•hr•°F [1.01-1.30 W/(m•K)]. It bonds well to a wide variety of substrates, including metals, composites, glass, ceramics, rubbers as well as many types of and plastics. Highly flexible, MasterSil 972TC-LO has an elongation of 40-80%, withstands aggressive thermal cycling and resists mechanical shock. This heat dissipative silicone system has a wide service temperature range is -120°F to +400°F.
This addition cured system does not require air for cross-linking. It features low shrinkage upon curing even in thick or wide cross sections. MasterSil 972TC-LO has a moderate viscosity of 30,000-40,000 cps with good flow properties and has a one to one mix ratio by weight. It has a long working life of 6-10 hours at room temperature. This compound is 100% solids and has a white color. Mastersil 972TC-LO is available in 50 gram syringe kits with additional sizes upon request.
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