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🔧 Bond Boldly, Repair Reliably — The Last Epoxy You'll Ever Need!
G/Flex 655-1 is a premium 2-part thickened epoxy adhesive in a convenient 1 oz syringe, engineered for permanent, waterproof, and flexible bonding across plastics, metals, ceramics, and woods. Its high viscosity allows precise application, while its cured flexibility absorbs shocks and vibrations, making it the go-to solution for demanding repairs in marine, sports, and industrial settings.















| ASIN | B08H8J4MCJ |
| Best Sellers Rank | #7,269 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #18 in Metal Filled Epoxies |
| Brand Name | West System |
| Color | No Color |
| Compatible Material | Plastic |
| Container Type | Syringe |
| Customer Reviews | 4.8 4.8 out of 5 stars (193) |
| Full Cure Time | 24 Hours |
| Item Form | Syringe |
| Item Package Quantity | 1 |
| Item Type Name | G/Flex 655-1 1 oz syringe |
| Manufacturer | Gougeon Brothers, Inc. |
| Material Type | Plastic |
| Model | 655-1 |
| Other Special Features of the Product | Waterproof |
| Specific Uses For Product | Casting, Countertop, Flooring, Masonry, Repair |
| UPC | 850017278158 |
| Unit Count | 1.0 Count |
| Viscosity | High |
| Volume | 1 Fluid Ounces |
| Warranty Description | Warranty |
| Water Resistance Level | Waterproof |
J**D
An Awesome Epoxy that is strong, waterproof and flexible when cured!
The West Marine G-Flex Epoxy works well for the situations it is developed for. It is not a 5 minute set, which gives you time work with it. It is a strong epoxy that is waterproof and stays flexible once cured. Awesome for boat work, ski and snowboard repair etc. items that need waterproof and flexible qualities. It has worked well for the projects I purchased it for and I only use it for the repairs that require its properties. About 2x the price of regular epoxies.
K**R
Works good, as advertised.
WE have a much loved old bowling ball that was beginning to chip around the thumb hole. My adult son has disabilities and LOVES this ball. We tried an epoxy putty and then regular epoxy. Both cracked and chipped, but THIS epoxy really holds..It has set and the ball has been thrown down the alley a multitude of times with no cracking fissures or breakage. 5 stars!
N**.
Works as intended
Used this to repair and seal my ski graphic surface. The product mixes well and is easy to apply. It makes for a very high quality repair when sanded and painted over. It will dry yellow after time. I have had no failures where I have used this product.
L**Z
Wish I bought the larger size
Works fine on my Royalex canoe, but I didn't realize how many gouges I needed to fill in. And then, on my first day out, gouged up a bunch more. It covered a few big gouges.
P**B
So far, so good!
So far, so good! Nothing sticks to polyethylene boat waste tanks the Google says. Practical experience with my favorite epoxy ( it uses the Godfather of soul’s initials) both marine and plastic formulas proved that true. Enter this stuff. I drilled a small at the end of the crack to prevent further propagation, and gooped it on. Tests on the dock and after reinstall, no leak. I will say my old boat is a floating condo, so no sea trial in store. Saved me $400 to $500 bucks.
B**O
Long Cure time.
Works well! Sticks to rotomolded HDPE well enough. I repaired my kayak in the field... but the problem is that this needs 24 hours to cure! If you have that kind of time, you will like this product. I will buy it again, even though I don't love the 24 hour cure time because it does work pretty well on plastic.
B**D
Worked great
If you know, you know
W**R
Good stuff. Very strong
Used to repair grandfather's pocket knife. Still holding up almost 1 year so far
Trustpilot
Hace 1 mes
Hace 1 mes