For heat shielding applications such as wrapping over and thermal insulation, use 3M™ High Temperature Aluminum Foil Tape 433L. This dead soft aluminum foil tape is coated with a clear, silicone, pressure-sensitive adhesive that bonds well to a variety of surfaces and excels in high temperature applications, where other adhesive tapes may fail.3M High Temperature Aluminum Foil Tape 433 is designed to excel in a variety of seaming, splicing and sealing applications where high temperatures are a concern. This dead soft, aluminum-backed tape is coated with a pressure-sensitive silicone adhesive that bonds to a variety of difficult substrates while maintaining a strong and reliable bond, even at high temperatures. This tape boasts an excellent performance range from -65 F to 600 F (-54 C to 316 C) and meets flame resistance requirements of F.A.R. 25.853(a) and is a UL Recognized component.