Duct and Insulation Tapes 600 Series   –  Laminated foil/scrim/kraft (FSK)   –  Foil/scrim/kraft (FSK) laminate; all temperature clear acrylic adhesive; removable liner. Same as #608; also used for patching pre-engineered metal buildings; service temperature range of 0 degrees F to 150 degrees F. Meets Specs: UL 723, Flame Spread lndex-10, Smoke Development lndex-0; ASTM E-84.   –  Carolina Tape   –