Urethane sealant for glasses. Urethane sealant for glass adhesion. One-component poly-urethane sealant, polymerizing at the presence of moisture. It is used for cluing all types of wind glasses (full or almost full glass). It ensures excellent adhesion to glasses and joint surfaces. Application: The glass surface must be clean and degreased. Apply the glass primer on the glass if it is required (no factory primer), apply the primer on the metal. Puncture the cartridge with a sharp tip (in the thread location). Attach the applicator to the cartridge. Cut the applicator to the necessary hole size at 45° angle. Before you insert the cartridge in the gun, remove the metal foil from the lower cartridge part using the pliers.