---
product_id: 28713903
title: "G/flex 655 Thickened Epoxy Adhesive"
brand: "west system"
price: "58738CFA"
currency: XOF
in_stock: null
reviews_count: 8
category: "West System"
url: https://www.desertcart.sn/products/28713903-g-flex-655-thickened-epoxy-adhesive
store_origin: SN
region: Senegal
---

# 46 min pot life, 24 hr full cure Waterproof & bonds damp surfaces 150,000 PSI tensile strength G/flex 655 Thickened Epoxy Adhesive

**Brand:** west system
**Price:** 58738CFA
**Availability:** ❌ Out of Stock

## Summary

> 🛠️ Bond like a boss — tough, flexible, and waterproof for every pro fix!

## Quick Answers

- **What is this?** G/flex 655 Thickened Epoxy Adhesive by west system
- **How much does it cost?** 58738CFA with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/28713903-g-flex-655-thickened-epoxy-adhesive)

## Best For

- west system enthusiasts

## Why This Product

- Trusted west system brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Flexible Yet Tough:** More flexible than traditional epoxies, absorbing expansion and contraction without cracking.
- • **Unrivaled Strength:** Delivers a rock-solid 150,000 PSI bond that stands up to stress, shock, and vibration.
- • **Extended Work Window:** 46 minutes of pot life and up to 75 minutes open time lets you perfect every application without rush.
- • **Versatile Bonding Power:** Bonds hard-to-stick materials like plastics, metals, fiberglass, and damp woods with ease.
- • **Waterproof & Weatherproof:** Ideal for underwater repairs and wet surfaces—your go-to for boats, kayaks, and outdoor projects.

## Overview

West System 655-8 G/flex Epoxy Adhesive is a high-performance, two-part epoxy delivering exceptional adhesion with 150,000 PSI tensile strength. It offers a generous 46-minute pot life and cures fully in 24 hours, bonding a wide range of materials including plastics, metals, fiberglass, and damp woods. Waterproof and flexible, it’s engineered to withstand stress, shock, and vibration, making it perfect for demanding repairs on boats, kayaks, and structural projects.

## Description

West System 655-8 G/flex Epoxy Adhesive, two 4.5 fl oz., White: desertcart.com: Industrial & Scientific

Review: Best Epoxy out there - I do alot of custom fabrication, mostly on custom cars. This is one of my favorite tools for bonding, sculpting, and finishing. It holds a decent shape before curing, and cures so great - strong - and shapable (is that a word?) I don't write reviews, but G/Flex deserves a bit of my time to give it a big thumbs-up
Review: For cracks - I've been using this to patch small cracks and spider cracks in the transom of my 1970's fiberglass boat. It's easy to mix up and thick enough to apply upside down on the bottom of the boat *without* having to let it set up (semi cure) or mix with fillers like sawdust to make "peanut butter". It's already thick enough (even in a hot Arizona garage) and sticky. I apply it with a plastic mixing stick after opening up the cracks with a dremel. It seems like the perfect toughness after curing. Not too brittle and not too flexible. It should flex with my old "wet noodle" hull and not crack again. It sticks to anything and self levels itself while applying to make a smooth repair. After curing it is so clear it looks like there is nothing in the cracks, which is funny.

## Features

- EXCELLENT ADHESION adhesion to hard-to bond woods. This toughened, versatile, thickened epoxy is for permanent waterproof bonding of fiberglass, ceramics, metals, plastics, damp and difficult-to-bond woods. A bit more flexible than standard epoxies and polyester, but much stiffer than adhesive sealants. Makes structural bonds that can absorb the stress of expansion, contraction, shock, and vibration.
- IDEAL FOR BONDING dissimilar materials. Mixed at a 1:1 ratio, this 2-part epoxy gives you 46 minutes of pot life at 72°F and an open (working) time of 60-75 minutes. It reaches an initial cure in 3 to 4 hrs, workable cure in 7-10 hours, and full cure in 24 hours.
- OFFERS GREATER FLEXIBILITY than traditional epoxies or polyester resins. Yet it is much stiffer than adhesive sealants. With a modulus of elasticity of 150,000 PSI, this epoxy bonds tenaciously to a metals, plastics, glass, masonry, and fiberglass.
- BONDS MANY 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.
- MAKES STRUCTURAL BONDS that can absorb the stress of expansion, contraction, shock, and vibration. G/flex can be used on damp or wet surfaces, and even underwater when applied with specific techniques. Perfect for repairs to plastic boats, canoes or kayaks made of polyethylene or ABS.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00LWKFZJ8 |
| Best Sellers Rank | #18,869 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #8 in Electrically Conductive Adhesives |
| Brand Name | West System |
| Color | White |
| Compatible Material | Plastic |
| Container Type | Tube |
| Customer Reviews | 4.7 4.7 out of 5 stars (616) |
| Full Cure Time | 24 Hours |
| Global Trade Identification Number | 00811343014759 |
| Included Components | EMW1832294 |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Type Name | Industrial Fluid Adhesives & Sealants |
| Manufacturer | West Systems |
| Material Type | epoxy |
| Model | 655-8 |
| Other Special Features of the Product | Waterproof |
| Specific Uses For Product | Repair, Woodworking |
| Tensile Strength | 150000 Pounds Per Square Inch |
| UPC | 811343014759 |
| Unit Count | 9.0 Fluid Ounces |
| Viscosity | Thick |
| Volume | 9 Fluid Ounces |
| Warranty Description | EMW1832294 |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** West System
- **Item Form:** Liquid
- **Material:** epoxy
- **Special Feature:** Waterproof
- **Specific Uses For Product:** Repair, Woodworking

## Images

![G/flex 655 Thickened Epoxy Adhesive - Image 1](https://m.media-amazon.com/images/I/71YI2j26H3L.jpg)
![G/flex 655 Thickened Epoxy Adhesive - Image 2](https://m.media-amazon.com/images/I/61dqLKaJWCL.jpg)
![G/flex 655 Thickened Epoxy Adhesive - Image 3](https://m.media-amazon.com/images/I/61PvuvkBFkL.jpg)
![G/flex 655 Thickened Epoxy Adhesive - Image 4](https://m.media-amazon.com/images/I/71ILq7R+qXL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Will this epoxy work  on plastic fuel tanks?**
A: Yes, absolutely. We've used it on pressurized fuel tanks too. Fixed punctures, even cracked threaded connection collars. This is the best epoxy we've ever seen. The key is all in the prep work, using 80 grit as instructed. Once the plastic is sanded and prepped, for added strength it advises "curing" the plastic before applying epoxy by heating that sanded plastic area with a torch (flame). Clearly this step can be dangerous, do only if it's an empty aired out tank. Otherwise skip this step. Prep, prep, prep is the key.

**Q: does it work with wood?**
A: Yes, but the regular epoxy works very well with wood and is less expensive.  I bonded plastic to wood with this.

**Q: Will this epoxy work on cement steps**
A: Not sure how you're proposing to use it exactly, but it's a great product and will work on virtually anything.

**Q: What type of prep work is needed if i'm using this on a scepter water jug? light sanding? i'm trying to glue an abs 6x12" plate to it the jug.**
A: Sanding for "Tooth" and then a "Degreasing " on Both Items (jug & base) I use denatured alcohol.  I'd  lay the Jug Base down into the Gflex and let simple gravity do the joining. Hope this helps

## Customer Reviews

### ⭐⭐⭐⭐⭐ Best Epoxy out there
*by D***S on October 28, 2025*

I do alot of custom fabrication, mostly on custom cars. This is one of my favorite tools for bonding, sculpting, and finishing. It holds a decent shape before curing, and cures so great - strong - and shapable (is that a word?) I don't write reviews, but G/Flex deserves a bit of my time to give it a big thumbs-up

### ⭐⭐⭐⭐⭐ For cracks
*by M***T on September 23, 2022*

I've been using this to patch small cracks and spider cracks in the transom of my 1970's fiberglass boat. It's easy to mix up and thick enough to apply upside down on the bottom of the boat *without* having to let it set up (semi cure) or mix with fillers like sawdust to make "peanut butter". It's already thick enough (even in a hot Arizona garage) and sticky. I apply it with a plastic mixing stick after opening up the cracks with a dremel. It seems like the perfect toughness after curing. Not too brittle and not too flexible. It should flex with my old "wet noodle" hull and not crack again. It sticks to anything and self levels itself while applying to make a smooth repair. After curing it is so clear it looks like there is nothing in the cracks, which is funny.

### ⭐⭐⭐⭐⭐ Abs 2 man boat repair
*by F***N on July 28, 2024*

Great product. I used it to repair a crack in my 10 foot prowler boat. The crack was horizontal about 10” long including an inside and an outside bend. I watched a how to video on utube? Followed the step by step instructions and had the repair patch done in fifteen minutes. Let it dry for 24 hours and put it in the lake. Two of us fished out of it for two days. Worked great. I would highly recommend this product if you’re looking for a permanent patch for a abs plastic boat. This product is meant for underwater use.

## Frequently Bought Together

- West System 655-8 G/flex Epoxy Adhesive, two 4.5 fl oz., White
- WEST SYSTEM G/flex Epoxy (2- 4oz)
- G/Flex 655-1 1 oz syringe

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-03-31*