3M(TM) High Temperature Aluminum Foil/Glass Cloth Tape 363LC Silver, 1 in x 36 yd 5.8 mil 3M(TM) High Temperature Aluminum Foil/Glass Cloth Tape 363LC Silver, aluminum foil tape laminated to glass cloth with silicone adhesive. 363LC is a thinner version of 363 tape. 3M(TM) High Temperature Aluminum Foil/Glass Cloth Tape 363LC is a strong flexible tape that can be used as a high temperature heat reflective, protective wrap for heat sensitive cables and other instruments in many aerospace and industrial applications. Tape 363LC (lower coating weight) is made with a thinner layer of adhesive than Tape 363 for less aggressive adhesion properties.