West System G/Flex Thickened Epoxy Adhesive


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West System G/flex Thickened Epoxy Adhesive is a toughened, versatile, 2-part epoxy for permanent waterproof bonding of plastic, fiberglass, ceramics, metals, damp, and difficult-to-bond woods. G/flex 655 is a bit more flexible than standard epoxies and polyester but much stiffer than adhesive sealants. This gives G/flex 655 the ability to make structural bonds that can absorb the stress of expansion, contraction, shock, and vibration. It is ideal for bonding dissimilar materials. This system is simple to use with its 1:1 mix ratio by volume.

  G/flex 655 Thickened Epoxy Adhesive is designed to bond to:

  • Plastics
  • Metals
  • Glass
  • Masonry
  • Fiberglass
  • Wet and difficult-to-bond woods

 Project Uses:

  • Polyethylene & ABS Canoe/Kayak Repairs
  • General Bonding
  • Wetting Out Fiberglass
  • G/flex 655 Thickened Epoxy quickly builds up thickness and will not run or sag. It’s also toughened to make structural bonds that absorb the stresses of expansion, contraction, shock and vibration.


  • Mix Ratio By Volume | 1:1
  • Pot Life | 46 Minutes
  • Working Time | 75 Minutes
  • Full Cure | 24 Hours @ 72°F
  • Modulus Elasticity | 150,000 PSI
  • Color | Amber
  • Consistency | Gel Toothpaste

Additional information

Weight N/A
Dimensions N/A

1 oz, 8 oz, 2Q