---
product_id: 267257749
title: "G/flex Epoxy (2-4oz)"
brand: "west system"
price: "Rp2060458"
currency: IDR
in_stock: true
reviews_count: 5
category: "West System"
url: https://www.desertcart.id/products/267257749-g-flex-epoxy-2-4oz
store_origin: ID
region: Indonesia
---

# 75 min working time Waterproof & bonds damp surfaces 5000 PSI tensile strength G/flex Epoxy (2-4oz)

**Brand:** west system
**Price:** Rp2060458
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal the deal with the epoxy that never quits!

## Quick Answers

- **What is this?** G/flex Epoxy (2-4oz) by west system
- **How much does it cost?** Rp2060458 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.id](https://www.desertcart.id/products/267257749-g-flex-epoxy-2-4oz)

## 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 & Shock-Absorbing:** Absorbs expansion, contraction, and vibration—ideal for dynamic environments like boating.
- • **Unmatched Waterproof Bonding:** Creates permanent, flexible seals even underwater or on damp woods.
- • **Superior Strength for Tough Jobs:** Rated at 5000 PSI, outperforms common epoxies for high-stress repairs.
- • **Versatile Multi-Material Adhesion:** Bonds fiberglass, metals, plastics (including HDPE), ceramics, and exotic woods effortlessly.
- • **User-Friendly with Extended Work Time:** Easy 1:1 mix, 75 minutes working time, and quick 3-hour cure for fast, reliable fixes.

## Overview

WEST SYSTEM G/flex Epoxy (2-4oz) is a high-performance, flexible, waterproof adhesive designed for demanding repairs on fiberglass, metals, plastics, and damp or difficult-to-bond woods. With a 5000 PSI tensile strength and 75-minute working time, it offers professional-grade durability and versatility, making it an essential tool for boaters, DIYers, and pros alike.

## Description

G/flex Epoxy Adhesive belongs in every boater's repair kit. Get a waterproof, flexible bond on plastic, fiberglass, aluminum, etc. The 650-8 kit gives you two 4 oz. bottles of the liquid epoxy. The 650-8 kit contains 4 oz. each of viscous liquid G/flex 650 resin and hardener. Mixing ratio is 1: 1. Mixed G/flex 650 is of a heavy "syrup" consistency. It will run off a vertical surface. 650 can be thickened with inert filling materials. G/flex is a product of West System, a division of Gouge on Brother's, The Gouge on brothers have been using epoxy resins in boat building and repair for some 50 years. It makes structural bonds that can absorb the stresses of expansion, contraction, shock and vibration. In addition to its superior bonding to many different materials and its ability to bond dissimilar materials, G/flex is much more flexible than other epoxies. This is an excellent property for boat building and repair. Polyethylene (HDPE) is a common kayak and canoe material. Its molecular structure resists gluing by most adhesives. G/flex solves the problem; it bonds well to polyethylene and ABS plastics. At 72 F pot life is 45 minutes. Working time is 75 minutes. It cures to a solid in three hours and cures to its full strength in one to two days. It cures faster in warmer temperatures and slower in colder ones. Clean up is simple. Wipe up spills with absorbent materials. Clean residue before it cures, with alcohol or acetone. G/flex adheres tenaciously to difficult-to-glue hardwoods, both tropical and domestic varieties. It has the ability to glue damp woods. It can be used on wet surfaces, even underwater when applied with specific techniques. G/flex does indeed belong in every boater's repair kit. The more you use it, the more uses you'll find for it - with your boating gear and other sporting and household items. It's easy to mix and use. The instructions that come with the kit are top notch.

Review: This is ((SERIOUS)) EPOXIE it is beyond j.b.weld which is 3900 psi holding strength ! This is rated @ 5000psi ,used it on some large pressurized glass projects it is as strong as the quartz glass . Excellent stuff to keep on hand , drys slightly amber ,not clear !
Review: Resurfaced a Mad River 16’ Royalex Explorer. G/Flex mixed with Cabosil (filler), paste pigment, then applied with plastic squeegee. Worked pretty good, see how it endures over the next couple years

## Features

- G/flex 650 is a toughened, versatile, liquid epoxy for permanent waterproof bonding of fiberglass, ceramics, metals, plastics, damp and difficult-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.
- G/flex has the ability to glue damp woods. It can be used on wet surfaces, even underwater when applied with specific techniques.
- Country of origin: United States

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002IZFPQE |
| Best Sellers Rank | #60,460 in Sporting Goods ( See Top 100 in Sporting Goods ) #98 in Exercise Equipment Mats #130 in Epoxy Adhesives |
| Department | Automotive |
| Item model number | NRS G/flex Epoxy (2- 4oz) |
| Manufacturer | WEST SYSTEM |
| Product Dimensions | 8.89 x 19.69 x 4.95 cm; 323.18 g |

## Product Details

- **Brand:** West System
- **Item form:** Liquid
- **Material:** Epoxy
- **Specific uses for product:** Repair

## Images

![G/flex Epoxy (2-4oz) - Image 1](https://m.media-amazon.com/images/I/715RKL9qezL.jpg)

## Questions & Answers

**Q: What is the shelf life of this epoxy?**
A: Detailed information can be discovered by contacting West Systems technical staff at 866-937-8797 or via e:mail at tech-support@westsystem.com

**Q: How much does this 8 oz cover?  Approximately howmany rivets would this cover?**
A: This is a highly subjective question with a lot of variables. If used somewhat conservatively it will easil cover 100 + Rivets.

**Q: Is it somewhat rubbery or pretty firm after it cures?  Could anyone please describe it?**
A: it is not rubbery, it hardens to a very firm coat; how hard is dependent on your mix. it is flexible and holds together; however, less hardener the more flex with coverage. i have used it to gack bows, and it works well.

**Q: is this an 8 oz bottle of the resin and an 8 oz bottle of the hardener?**
A: It's 4 + 4 mate. 8 oz in total

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***F on 12 January 2026*

This is ((SERIOUS)) EPOXIE it is beyond j.b.weld which is 3900 psi holding strength ! This is rated @ 5000psi ,used it on some large pressurized glass projects it is as strong as the quartz glass . Excellent stuff to keep on hand , drys slightly amber ,not clear !

### ⭐⭐⭐⭐⭐ Review
*by A***R on 10 December 2025*

Resurfaced a Mad River 16’ Royalex Explorer. G/Flex mixed with Cabosil (filler), paste pigment, then applied with plastic squeegee. Worked pretty good, see how it endures over the next couple years

### ⭐⭐⭐⭐⭐ Review
*by L***E on 11 February 2024*

Knife handles

## Frequently Bought Together

- WEST SYSTEM G/flex Epoxy (2- 4oz)
- Coolneon 1/8 inch Brass Rods 1/8 x 12 in, 10 Pcs for Knife Making Knife Handles Pins Stock Knife Scale Solid Round Brass Rod Dowel Rivet Gunsmithing Crafts Modeling Hobby
- G/Flex 655-1 1 oz syringe

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*Product available on Desertcart Indonesia*
*Store origin: ID*
*Last updated: 2026-02-08*