Gorilla Glue is a polyurethane glue. When exposed to moisture, the adhesive reacts and creates a foaming action that fills whilst it sticks. The glue is brown in colour, but dries a tan colour. Features and Benefits Quick drying - Gorilla Glue has an open working time of 20 minutes Totally waterproof Gorilla Glue is incredibly strong - bonding all types of wood, including pressure treated wood. It also bonds stone, metal, ceramics, foam, glass, leather and much more Once dried the product is sandable, stainable, paintable and can also take a varnish Due to its foaming action the glue gives greater coverage - up to 3 times the coverage of other glues Ultra versatile - unaffected by extreme temperatures and will not break down when exposed to rain and snow Typical Applications The Gorilla Glue formula bonds materials that typical all-purpose adhesives will not hold, including wood, stone, metal ceramics, glass, foam and even bonds dissimilar materials. It is waterproof and tempe