Product: West System 650-8 G/Flex Toughened, Versatile, Liquid Epoxy Resin and Epoxy Hardener, Permanent Waterproof Bonding Of Fiberglass, Ceramics, Metals, Plastics, Damp & Woods, 4.5 Ounce x 2 Bottles
Brand: West System
Color: Original version
G/flex 650 is a toughened, versatile, liquid epoxy for permanent waterproof bonding of fiberglass, ceramics, metals, plastics, damp and difficult-to-bond woods. With a modulus of elasticity of 150,000 PSI, it is a bit more flexible than standard epoxies and polyester, but much stiffer than adhesive sealants. This gives G/flex 650 the ability to make structural bonds that can absorb the stress of expansion, contraction, shock, and vibration. It is ideal for bonding dissimilar materials.  G/flex 650 can be modified with WEST SYSTEM fillers and additives, and used to wet-out fiberglass tapes and fabrics. Mixed at a 1:1 ratio, G/flex 650 gives you 46 minutes of pot life at 72-Degree Fahrenheit, and an open (working) time of 75 minutes. It reaches an initial cure in 3 to 4 hrs and a workable cure in 7-10 hours.
Toughness and flexibility. G/flex has been toughened to make structural bonds that can absorb the stresses of expansion, contraction, shock and vibration. It is resilient and impact resistant.
Adhesion to wet and damp surfaces. G/flex has the ability to glue damp woods. It can be used on wet surfaces, even underwater when applied with specific techniques.
Excellent adhesion to hard-to-bond woods. G/flex adheres tenaciously to difficult- to-glue hardwoods, both tropical and domestic varieties.
Bonds well to a variety of materials. G/flex bonds well to metals, plastics, glass, masonry and fiberglass. It is ideal for repairs to aluminum boats and polyethylene and ABS canoes and kayaks.
Ease of use. G/flex is a simple two-part epoxy system. Resin and hardener can be mixed to provide a relatively long open working time, yet it cures quickly and can be used in cool temperatures.

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