G/flex 650 is a new epoxy introduced by WEST SYSTEM in mid-June 2007. A toughened, versatile, liquid epoxy for permanent waterproof bonding of fiberglass, ceramics, metals, plastics, damp and difficult-to-bond woods. G/flex offers these important 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.
G/Flex 650 Kit contains: One 4oz. bottle of epoxy, one 4oz. bottle of hardener, 2 mixing sticks, 2 syringes, 4 mixing cups, 406 Colloidal Silica, one pr. gloves, four alcohol pads
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Reviewed by 5 customers
Displaying reviews 1-5
- Adheres To Any Surface
- stays in place
- Slow Curing In Cold Temps
- Waterproof Repairs
With a consistency of molasses, I was able to brush this epoxy into small crevices in a cracked 4" cast iron drain pipe. Once hardened, the epoxy completely sealed the crack. The epoxy was the perfect solution, as the crack probably had some moisture inside. Have observed the repair for over a month and there is no sign of any leaks. Because of the epoxy's strength, I'm sure the pipe is stronger than new. Sorry it wasn't a boat repair, but this little 650 kit saved me around $4000 in plumbing repairs.
This has been my old standard epoxy for binding wood, covering wood and leather and binding all of the above, along with covering metal implants. It is rather thick and not runny. When applied, it can be re-shaped and re-distributed for up to about 40 minutes. When it hardens, it is smooth and relatively clear. However, it has a yellow tint, especially the newer formulas which have a darkened hardener.. This epoxy is very strong and lasts for years. It's the one I fall back on even though I also use the fast-dry and the 105-209 mixture for very clear surfaces. The latter is runny when applied and much thinner than the Gflex. I use the epoxy in making walking canes, small wood fixtures, tables and the like.
- Good price
- Small Boat Repair
works just like they say !!!!!!! great
- Easy to mix
- Easy to use
- Big Repairs
- Small repairs
I have a Goat Island Skiff - a 15.5 foot all wood Michael Storer sailing skiff. I used G-flex for adding fiberglass to the end of my mast, coating the ends of my new boom, repairing dings on my rails or centerboard. It's easy to mix a very small quantity for small repairs, so no wastage, and the consistency is just right, not too thick that it won't soak fiberglass, or too thin that you can't control where it goes.
- Can be thickened w silica
- Can mend polyethylene
- Dries to amber color
- Easy to work with
- Extreme high-strength
- Has some flex
- Mixes 11
- "Glue" anything on a boat
- Build-up nicked centerbrd
- Fix plastic kayak canoe
- Fix split centerboard
- Fix wooden trim
I bought this at West Marine. I recommend getting the larger kit with 16 oz bottles as it has long shelf life. Mixes 1:1. When I need it thicker, I use West 406 silica. Also I wear a 3M NIOSH vapor mask, chemical goggles and nitrile gloves when I work with these materials due to hazards. Sand area and clean with acetone to prep. I venture to say that this is the BEST all-around epoxy for the boater, and you will find uses for it around the home shop. Great stuff! Highly recommended. The ultimate ductape/bailing wire high-tech replacement. -Paul Chaplo