Toughened, versatile, liquid epoxy resin for permanent bonding of fiberglass, ceramics, metals, plastics, damp and difficult-to-bond woods.G/flex 650 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. It 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 45 minutes of working time at 72F. It reaches an initial cure in 7 to 10 hours and full cure in 24 hours. 650 G/flex Resins should be paired with comparable size 650 G/flex Hardeners. Includes 16 ounces of resin and 16 ounces of hardener.Kit Contents16 ounces resin; 16 ounces hardenerKey FeaturesMore flexible than standard epoxy or polyester resinsStructural bonds absorb stress of expansion, contraction, shock and vibrationGood for bonding dissimilar materialsCan be modified with WEST SYSTEM fillers and additivesSpecificationsFormulation: Two-part epoxyMix Ratio: 1 : 1Working Time: 45min. @ 72FDrying Time: Initial cure: 6-10hrs.; Full cure: 24hrs.G/flex Instructions