BlueTex foil tape is not only multi-functional but is also extremely durable - you can't easily rip or tear this tape! Cuts easily with a blade. Designed by BlueTex Insulation for use with our heavy duty radiant barrier and metal building insulation products, this tape can handle the most extreme conditions and environments. Our tape is moisture resistant, UV resistant, and weather resistant, including for use in direct sun. This tape has an internal woven tear-proof scrim/tarp-like fabric to give it strength no foil-only tape can provide. This tear-proof scrim is then adhered to pure aluminum foil (not mylar) and can reflect 97% of radiant heat too! BlueTex is a US owned and operated company and we have live customer service phone support Monday - Friday. Shop local and shop small business from BlueTex Insulation.