650 is a toughened, versatile, liquid epoxy for permanent waterproof bonding of fibreglass, ceramics, metals, plastics, damp and difficult-to-bond wood. With a modulus of elasticity in excess of 1GPa, it is more flexible than standard epoxies, but much stiffer than adhesive sealants.

Ideal for bonding dissimilar materials G/flex may be modified using WEST SYSTEM fillers and additives, and used to wetout fibreglass tapes and fabrics.

Mixed at a 1:1 ratio, G/flex has approximately 45 minutes of working time at 22°C,it will become solid in 3-4 hours and achive a workable cure in 7-10 hours.