Butyl rubber for insulating glass is not adhesive tape, but hot melt adhesive. It is a one-component insulating glass sealant based on polyisobutylene rubber, which has no solvent, no fogging, no vulcanization and permanent plasticity. Hot-melt butyl sealant keeps its plasticity and sealability in a wide temperature range, and its surface does not crack or harden. Good adhesion to glass, aluminum alloy, galvanized steel, stainless steel and other materials. Because of its extremely low water vapor permeability, it can form an excellent moisture-proof system with elastic sealant. When in use, it is heated to 1 10- 130 degrees by a butyl rubber coating machine, extruded by equipment pressure, and coated on an aluminum frame by the movement of an auxiliary belt.