Versachem Plastic Welder is a strong structural adhesive formulated for bonding dissimilar materials and unprepared metals. Minimal surface preparation required. Only mix the amount of product that can be used within the handling time, and always mix equal portions of the adhesive and activator thoroughly together in order for this product to cure properly. Once cured, the bond is resistant to weathering, humidity and wide temperature variations. Does not bond to Polyethylene or Polypropylene Plastics. Not recommended for use on copper or brass. Bonds hard plastics, metal, concrete, glass, ceramic, china, acrylic, ABS, vinyl, OVD fiberglass, wood, styrene, and Corian with a tensile strength of 3500 PSI. Cream color, non-sagging, waterproof formula. Temperature Range: -40°F to 200°F. Do not freeze; store between 55°F and 75°F.