---
product_id: 2380375
title: "Bondo Fiberglass Resin Repair Kit, 00420, 0.45 Pint"
brand: "3m"
price: "$65"
currency: NZD
in_stock: true
reviews_count: 8
url: https://www.desertcart.nz/products/2380375-bondo-fiberglass-resin-repair-kit-00420-0-45-pint
store_origin: NZ
region: New Zealand
---

# 100% waterproof seal 2-hour sandable cure multi-surface strong formula Bondo Fiberglass Resin Repair Kit, 00420, 0.45 Pint

**Brand:** 3m
**Price:** $65
**Availability:** ✅ In Stock

## Summary

> 🛠️ Fix it fast, fix it right—because your ride deserves the best!

## Quick Answers

- **What is this?** Bondo Fiberglass Resin Repair Kit, 00420, 0.45 Pint by 3m
- **How much does it cost?** $65 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/2380375-bondo-fiberglass-resin-repair-kit-00420-0-45-pint)

## Best For

- 3m enthusiasts

## Why This Product

- Trusted 3m brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Fast-Track Repairs:** Sandable and ready for paint in under 2 hours—get back on the road faster.
- • **DIY Mastery in a Kit:** Everything you need to fix holes and scratches—no pro required.
- • **Pro-Grade Components:** Includes resin, hardener, cloth, and tools for a flawless, professional finish.
- • **Versatility Unleashed:** Works seamlessly on fiberglass, metal, wood, and concrete—one kit, endless fixes.
- • **Waterproof Confidence:** Seals permanently with a 100% waterproof finish for lasting durability.

## Overview

The Bondo Fiberglass Resin Repair Kit by 3M is a comprehensive, easy-to-use solution designed for quick, durable repairs on multiple surfaces including automobiles, boats, wood, and concrete. Featuring a fast 2-hour cure time and a 100% waterproof seal, this kit includes all necessary components to deliver professional-grade results without the professional price.

## Description

Bondo Fiberglass Repair Kit is a do-it-yourself solution for easy and effective auto body repair. Users can repair cracked, broken or rusted automobile body components quickly, easily and at a fraction of the cost versus part or panel replacement. The kit includes resin and hardener for a permanent, 100% waterproof seal that hardens in as little as two hours and is compatible with most paint.

## Features

- EASY DO-IT-YOURSELF KIT to repair holes and scratches on automobiles, boats and more
- 100% WATERPROOF seal for long-lasting, durable repairs
- STRONG AND VERSATILE FORMULA for multiple surfaces including concrete, wood, fiberglass, and metal
- Sandable in under 2 hours
- Includes everything that is needed for the DIYer - fiberglass resin, liquid hardener, plastic spreader, fiberglass cloth, mixing stick and mixing tray

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | 3M |
| Specific Uses For Product | Fleet and plant maintenance. |
| Material | Fiberglass Resin,Plastic,Fiberglass Cloth |
| Item Form | Liquid |
| Special Feature | Durable, Versatile, Quick Repair, Comprehensive Kit |
| Color | Regular |
| Item Package Quantity | 1 |
| Package Information | Bottle |
| Item Volume | 0.5 Pints |
| Viscosity | Low to Medium Viscosity |
| Full Cure Time | 2 Hours |
| Water Resistance Level | Waterproof |
| Unit Count | 1.0 Count |
| Viscosity Level | Low to Medium |
| UPC | 076308004200 |
| Number of Pieces | 6 |
| Global Trade Identification Number | 00076308004200 |
| Manufacturer | 3M |
| Model | Bondo 420 Fiberglass Repair Kit, 4.5d-1 Pints |
| Item Weight | 12.8 ounces |
| Product Dimensions | 3 x 4 x 7 inches |
| Item model number | 420 |
| Is Discontinued By Manufacturer | No |
| Exterior | Polished |
| Manufacturer Part Number | 420 |
| Bulb Type | Fluorescent |
| Special Features | Durable, Versatile, Quick Repair, Comprehensive Kit |
| National Stock Number | 7510-00-530-5511, 7510-00-530-5514, 7510-00-584-5953 |

## Product Details

- **Brand:** 3M
- **Specific Uses For Product:** Fleet and plant maintenance.
- **Material:** Fiberglass Resin,Plastic,Fiberglass Cloth
- **Item Form:** Liquid
- **Special Feature:** Durable, Versatile, Quick Repair, Comprehensive Kit

## Images

![Bondo Fiberglass Resin Repair Kit, 00420, 0.45 Pint - Image 1](https://m.media-amazon.com/images/I/619xpODC54L.jpg)

## Available Options

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

## Questions & Answers

**Q: does this come with hardener**
A: Includes hardener

**Q: Would this "polyester"-based resin be okay to repair fiberglass on fulcrum of a diving board or would I be better off spending 10x more on "epoxy"?**
A: The real answer would be what you want to accomplish.  Structure repair, or cosmetic?  I personally would use resin designed for maritime use.  Check the data sheet for the 422 to be sure it has some elasticity.  Additionally, 422 is primarily for automotive designed to get its UV protection via paint or an opaque gelcoat.  This stuff is great and I use it but if not protected it turns yellow and brittle.  My "go to" composite repair for composite structural repairs is carbon fiber and epoxy.

**Q: does this work on a longboard**
A: It does work on a longboard, but you need more product than this supplies.  Not enough fabric depending on the area to repair....only 2" square.  You may need more.
It does work great....repaired our longboard with fiberglass repair kit years ago.

**Q: I have a 1-ton van with a fiberglass  roof. It has 3 minor leaks.  Can I roll this on to seal the leaks? These are not cracks.**
A: I would say yes.  You would just sand the area to rough up the spot and mix the resin according to the directions.  Apply a small piece of the fiberglass material on the spot and the put the resin down to where the material is covered.  Let dry in a warm area for 24 hours and it should be good.  You can then sand the area and paint it.  Good luck..

## Customer Reviews

### ⭐⭐⭐⭐⭐ Solid Fix – Easy to Use and Works Like a Charm!
*by G***G on July 3, 2025*

I used the Bondo Fiberglass Resin Repair Kit (00420, 0.45 Pint) to repair a crack in my kayak hull, and I’m seriously impressed. I had never worked with fiberglass before, but this kit made it super manageable for a first-timer. The instructions were clear, and everything I needed was right in the box — resin, hardener, fiberglass cloth, and a mixing tray.The resin mixed well and spread smoothly, giving me plenty of working time. It hardened exactly as expected and left a solid, watertight seal after curing. After a light sanding and some paint, the repair was barely noticeable. It’s held up great through a couple of trips on the lake so far.Highly recommend this for small to medium fiberglass repairs — whether you're patching up boats, car panels, or even outdoor equipment. Just make sure you have gloves and work in a well-ventilated area, as the smell is pretty strong. Definitely a product I’d buy again.

### ⭐⭐⭐⭐⭐ Fixed my dad's Harley that I broke 3 years ago..
*by L***N on July 22, 2025*

I broke my dad's Harley 3 years ago. How I lived this long to write this review is unknown to me. I thought I'd end up in a ditch out in the country when he found out I broke it. Anyways, like the good son I am, 3 years later I order the less than $25 repair kit to see what magic I could work up on his Harley. It honeslty worked like a charm. It was very easy to apply and has held up incredibly over the last few months. If I had known it was this cheap and easy to fix his Harley, I would've done it years ago...maybe.

### ⭐⭐⭐⭐⭐ Follow directions
*by J***F on September 13, 2025*

Follow the instructions and it works awesome. Pay attention and follow these steps , simple as that.

## Frequently Bought Together

- Bondo Fiberglass Resin Repair Kit, 00420, 0.45 Pint
- 3M Bondo Short Strand Fiberglass Reinforced Filler 21 oz (595.34 g) with Bondo Cream Hardener 0.5 oz (14g), Repair Holes Up To 0.5 IN, Waterproof (SS-PT-ES)
- Bondo Body Filler, Original Formula for Fast, Easy Repair & Restoration of your Vehicle, 00261, Filler 14 oz and 0.5 oz Hardener, 1 Can, Salmon

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-01-26*