The butyl rubber sealing waterproof protective film is compounded by fluorine film, high-strength basement membrane and self-adhesive butyl rubber through a special process. The self-adhesive surface is covered with anti-adhesive isolation protective film, which integrates the top weatherability of fluorine film and the excellent air tightness and water tightness of butyl rubber. The waterproof system with this surface layer has many functions such as high weatherability, sealing waterproof, aging resistance, self-cleaning and reflective heat insulation. This is the introduction of a certain manufacturer. Butyl waterproofing membrane is mainly divided into three or four layers. Four layers refer to the exposed surface film layer, high-strength basement membrane layer, butyl adhesive layer and anti-sticking isolation film layer. The third layer has no high-strength basement membrane layer. 

The core of butyl waterproofing membrane is a kind of waterproof material with self-adhesive effect and good waterproof effect, which is made up of the waterproof and anti-aging properties of exposed membrane and the adhesive properties of butyl material. Its waterproof and aging resistance depends on the decorative layer on the surface, and its adhesion to the base depends on butyl material. At present, the thickness of butyl waterproofing membrane is varied, with 0.5 mm;  0.8mm ；  1.0mm ；  1.2mm ；  1.5mm ；  2.0mm 。 The width is 1m; 1.2m； The length is 10m; 15m; 20m。 The width of butyl adhesive tape has a small size as required. The exposed film layer is generally fluorocarbon film or other polymer film. Fluorocarbon membranes are generally white, and polymer membranes are generally blue or gray.