GSP 4625 is a tough, two-part, room temperature curing epoxy structural adhesive system with excellent shear and peel strengths. It has a 20-30 minute working time. It cures rapidly with mild heat. When mixed, this adhesive is semi-flowable at RT. A tough adhesive, GSP 4625 has excellent adhesion to a variety of substrates: metal to metal, variety of plastics, FRP, composites, etc.