---
product_id: 28713903
title: "West System 655-8 G/flex Epoxy Adhesive, two 4.5 fl oz., White"
brand: "west system"
price: "HK$537"
currency: HKD
in_stock: true
reviews_count: 8
category: "West System"
url: https://www.desertcart.hk/products/28713903-west-system-655-8-g-flex-epoxy-adhesive-two-4
store_origin: HK
region: Hong Kong
---

# 46 min pot life, 24 hr full cure Waterproof & bonds damp surfaces 150,000 PSI tensile strength West System 655-8 G/flex Epoxy Adhesive, two 4.5 fl oz., White

**Brand:** west system
**Price:** HK$537
**Availability:** ✅ In Stock

## Summary

> 🧩 The epoxy that holds your world together—strong, flexible, unstoppable.

## Quick Answers

- **What is this?** West System 655-8 G/flex Epoxy Adhesive, two 4.5 fl oz., White by west system
- **How much does it cost?** HK$537 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/28713903-west-system-655-8-g-flex-epoxy-adhesive-two-4)

## 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 Rigid:** Absorbs shock, vibration, and expansion without cracking or losing grip.
- • **Extended Working Time:** 46 minutes pot life and up to 75 minutes open time for precision application.
- • **Waterproof & Versatile Bonding:** Bonds metals, plastics, fiberglass—even underwater repairs made easy.
- • **Perfect for Dissimilar Materials:** Seamlessly bonds wood, ceramics, polyethylene, ABS, and more for flawless fixes.
- • **Unmatched Strength for Tough Jobs:** Withstands 150,000 PSI tensile stress—built to last under pressure.

## Overview

West System 655-8 G/flex Epoxy Adhesive is a high-performance, two-part epoxy designed for permanent, waterproof bonding of hard-to-bond materials including damp woods, metals, plastics, and fiberglass. Offering a potent 150,000 PSI tensile strength and a flexible yet tough finish, it cures fully in 24 hours with a generous working time, making it ideal for structural repairs that endure shock, vibration, and environmental stress.

## 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: Good glue - I bought then to glue a 3" uniseal to polyethylene, and ended up gluing 2 one side the worst damaged side of the polyethylene glued well and is sitting under pressure underwater now, however the other side which I damaged in the process of taking everything apart to glue the bad side Did not hold completely near the bottom of the seal it separated slightly, although i suspect it had to do with the preparation since it was my first time I probably did not get it 100% right, although It's also underwater and not leaking. To add my neighbor fixes cars and was looking for a new glue to use for repairs he took the piece of card board I mixed the glue on and attempted to crack it only causing him frustration, and eventually just cutting it with my big pick axe lol, he says it wont crack and the look on his face said I don't understand. I would buy this again, I have also used it to repair my Nike sandals which split all way through on the side of both sandals as well as the top strap starting to come loose from the rubber, But it was no problem for this glue. I have size 15 foot, and often end up catching the front of the sandal on stuff bending it in half at times as i step forward with 250lbs behind my step, but no cracking or damage at all since glued i am surprised.

## 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 | #17,933 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #9 in Electrically Conductive Adhesives |
| Brand | West System |
| Color | White |
| Date First Available | March 26, 2014 |
| Department | Unisex |
| Full Cure Time | 24 Hours |
| Global Trade Identification Number | 00811343014759 |
| Is Discontinued By Manufacturer | No |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Volume | 9 Fluid Ounces |
| Item Weight | 11.3 ounces |
| Item model number | 655-8 |
| Manufacturer | West Systems |
| Material | epoxy |
| Number of Pieces | 2 |
| Package Information | Tube |
| Product Dimensions | 3.1 x 8.1 x 2.45 inches |
| Special Feature | Waterproof |
| Specific Uses For Product | Repair, Woodworking |
| Tensile Strength | 150000 Pounds Per Square Inch |
| UPC | 811343014759 |
| Unit Count | 9.0 Fluid Ounces |
| Viscosity | Thick |
| Viscosity Level | High |
| Water Resistance Level | Waterproof |

## Product Details

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

## Images

![West System 655-8 G/flex Epoxy Adhesive, two 4.5 fl oz., White - Image 1](https://m.media-amazon.com/images/I/71YI2j26H3L.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

### ⭐⭐⭐⭐⭐ Good glue
*by M***. on May 18, 2019*

I bought then to glue a 3" uniseal to polyethylene, and ended up gluing 2 one side the worst damaged side of the polyethylene glued well and is sitting under pressure underwater now, however the other side which I damaged in the process of taking everything apart to glue the bad side Did not hold completely near the bottom of the seal it separated slightly, although i suspect it had to do with the preparation since it was my first time I probably did not get it 100% right, although It's also underwater and not leaking. To add my neighbor fixes cars and was looking for a new glue to use for repairs he took the piece of card board I mixed the glue on and attempted to crack it only causing him frustration, and eventually just cutting it with my big pick axe lol, he says it wont crack and the look on his face said I don't understand. I would buy this again, I have also used it to repair my Nike sandals which split all way through on the side of both sandals as well as the top strap starting to come loose from the rubber, But it was no problem for this glue. I have size 15 foot, and often end up catching the front of the sandal on stuff bending it in half at times as i step forward with 250lbs behind my step, but no cracking or damage at all since glued i am surprised.

### ⭐⭐⭐⭐⭐ Superior product
*by F***R on January 19, 2025*

Sticks to anything. Used it to seal the bulkhead on my 16.5’ kayak front bulkhead. It is made of ABS plastic. This epoxy exceeded my expectations, was recommended by the reps at Hurricane kayaks. Easy to work with, dries hard as a rock but flexes with my boat. I use my kayak 50+ times a year. Worth every cent

## 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 Hong Kong*
*Store origin: HK*
*Last updated: 2026-02-27*