The extra wide aluminum foil for insulation include 8011-O and 1235-O. Thickness ranges between 0.006mm and 0.03mm, and width up to your demands.
The foil is used in thermal insulation materials, such as rock wool boards and thermal insulation tiles. Aluminum foil paper rock wool board is one of the types of rock wool board. It is a kind of insulation material with very strong waterproof performance. Its surface material is a layer of aluminium foil. As an industrial manufacturing raw and auxiliary material, aluminum foil paper is mainly used in packaging protection, daily necessities, and construction. It can be qualitatively guaranteed to be shaded, will not fall, opaque, pollution-free, and inexpensive. For high-grade cigarettes, candies, insulation materials and other moisture-proof and decorative purposes. A layer of aluminum foil is attached to the surface of the rock wool board, which has a great effect on the waterproof performance of the rock wool board. Under normal temperature conditions (about 25°C), extra wide aluminum foil keeps the thermal conductivity of rock wool between 0.03 and 0.047W/(moK). At the same time, aluminum foil is a metal, which is not easy to burn under normal circumstances and can fully meet the requirements of fire protection regulations.