HOEREV Brand Polyimide Film Tape Amber, High Temperature Heat Resistant,Length 36y(33m) Temperature use range is -100 to 500F (-73C to 260C),Hi quality,fit for 3D printer;Length 36y(33m) Release surface in fabrication of parts cured at elevated temperatures; For protection of gold fingers of printed circuit boards during wave solder or solder dip process; 1.0 mil (0.025mm) polyimide film,1.0 mil(0.025mm~0.03mm) adhesive; Total thickness about 2.3mil(0.05~0.06mm); Polyimide film with a silicone adhesive, flame retardant, chemical and radiation resistant.