West System

West System G/flex Epoxy - 650-8

Item: #887754 | Part Number: 650-8
$35.74
Important Info
Want an email once available?
Notify Me
Total
$35.74
Need Help? Speak to an Outfitting Specialist [email protected] 1-800-628-8225 MON-FRI 9AM-5:30PM SAT 9AM-3PM
Description

West System G/flex Epoxy 650-8 is a tough, flexible adhesive designed for challenging repairs and structural bonding. With a simple 1:1 mix ratio, it grips metals, plastics, wet or difficult woods, and fiberglass with resilience that absorbs shock, vibration, and movement. Ideal for marine and general repairs where strength and flexibility matter.

Image of : West System G/flex Epoxy - 650-8 West System G/flex Epoxy - 650-8 Item # 887754

Description

West System G/flex is a tough, resilient epoxy engineered for a superior grip to metals, plastics, glass, masonry, fiberglass, and wet and difficult-to bond woods. G/flex is easy to use with a simple 1:1 mix ratio. It has a long open working time of 45 minutes at room temperature. G/flex reaches a working cure in 7-10 hours and a full cure in 24 hours.

Features:

  • Toughness and Flexibility G/flex has been toughened. This gives G/flex the ability to make structural bonds that can absorb the stresses of expansion, contraction, shock, and vibration. G/flex is resilient and impact resistant. With a modulus of elasticity of 150,000 psi (WEST SYSTEM 105 Resin/205 Hardener has a modulus of elasticity of 450,000 psi), G/flex is more flexible and can deflect further than WEST SYSTEM 105/205, while being much stiffer than typical adhesive sealants.
  • Bonds 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. This is important since many of the exotic and tropical species now being used to replace traditional woods present bonding challenges.
  • Bonds well to a variety of materials G/flex is ideal for bonding a variety of materials, including dissimilar ones. G/flex has a superior grip so that it can be used to bond to metals, plastics, glass, masonry, and fiberglass. G/flex is ideal for repairs to aluminum boats and polyethylene and ABS canoes and kayaks. It can also be used to wet out and bond fiberglass tapes and fabrics.
  • Ease of use G/flex is a simple two-part epoxy system. Resin and hardener are mixed in a 1:1 mix ratio by volume. For added convenience, a pre-thickened version, G/flex 655 Thickened Epoxy Adhesive, is also available. G/flex provides a relatively long open working time of 45 minutes. It cures in 7-10 hours and can be used in cool temperatures. Because it is simple to mix and use, G/flex is an excellent starting point for customers new to epoxy use.
  • Versatility G/flex can be modified with WEST SYSTEM fillers and additives if you need to meet particular bonding needs. Adding G/flex to other WEST SYSTEM epoxies can improve their toughness and flexibility.

Note: Two 4 oz. bottles of liquid epoxy (one 4 oz. resin and one 4 oz. hardener) in a plastic bag.

Safety Data Sheet

WARNING

This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm.

For more information go to www.p65warnings.ca.gov.

Part Numbers for West System G/flex Epoxy - 650-8

Related Categories

Related Categories

Reviews

  • bvseo_sdk, p_sdk, 3.2.1
  • CLOUD, getReviews, 8.21ms
  • REVIEWS, PRODUCT
  • bvseo-msg: HTTP status code of 404 was returned;

Questions

Should g flex harden so you can drill through it?

Asked by: Silversailor

What color is cured g flex?

Asked by: Mike J
I used g flex to fix a 1” below the water line ding on a wooden sailing dinghy. The boat is white; off the top of my head, the cured G-Flex was a light brownish color that stands out from the boat if you’re looking at it. Any repair will probably require a paint touch up, but the G-flex is easy to use and the form factor of the bottles for repairs is great. Good luck with your project!
Answered by: Jeff
Date published: 2025-08-10
  • y_2026, m_6, d_6, h_12CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.46
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_2
  • loc_en_US, sid_752813, prod, sort_[SortEntry(order=HAS_STAFF_ANSWERS, direction=DESCENDING)]
  • clientName_defendermarine
  • bvseo_sdk, p_sdk, 3.2.1
  • CLOUD, getContent, 63.94ms
  • QUESTIONS, PRODUCT
West System G/flex Epoxy - 650-8
Total:
$35.74