This 4-pack bundle of Altex Preferred MFG Polyimide High Temperature Resistant Tape with Silicone Adhesive is the ultimate solution for masking, soldering, and electrical insulation needs. The tape, made of HN Polyimide Polymers Film, boasts exceptional physical, chemical, and electrical properties across a wide temperature range (-73°C - 260°C or -99°F - 500°F). With four different sizes (1/8'', 1/4'', 1/2'', and 1''), this tape offers versatility and reliability for various applications. Its silicone adhesive ensures easy-release and no residue, while its high performance and durability make it ideal for circuit board masking, wire splicing, and more. Don't miss out on this top-notch substrate material (0.025mm thickness) with a 0.05mm thickness with adhesive, and adhesive strength of 4.5N/25MM. Its impressive tensile strength of 135N/25mm.