Kapton Masking Tapes are made from 1 Mil thick Kapton HN film with silicone adhesive. These tapes have been used in applications at temperatures as low as -269C (-452F) and as high as 400C (752F). DuPont Kapton polyimide films have set the industry standard for over 45 years in high performance, reliability and durability, with a unique combination of electrical, thermal, chemical and mechanical properties that withstand extreme temperature, vibration and other demanding environment. Kapton polyimide films make innovative design solutions possible in a range of industries including aerospace, automotive, consumer electronics, industrial, solar photovoltaic and wind energy applications. Kapton Masking Tapes have a high dielectric strength. Silicon adhesive protection leaves no residue. They conform to MIL-P-46112, TYPE I.