---
product_id: 61627359
title: "U-POL Isopon P40 Fibre Glass BodyFiller 250ml Used on Bare Steel And Original Paint Repairs Damaged Body Panels Very Durable Waterproof Can be Over Painted"
brand: "u-pol"
price: "R600"
currency: ZAR
in_stock: true
reviews_count: 8
category: "U Pol"
url: https://www.desertcart.co.za/products/61627359-u-pol-isopon-p40-fibre-glass-bodyfiller-250ml-used-on
store_origin: ZA
region: South Africa
---

# Waterproof & durable finish Fast 5-min set time Bridges & repairs damaged panels U-POL Isopon P40 Fibre Glass BodyFiller 250ml Used on Bare Steel And Original Paint Repairs Damaged Body Panels Very Durable Waterproof Can be Over Painted

**Brand:** u-pol
**Price:** R600
**Availability:** ✅ In Stock

## Summary

> 🛠️ Fix it fast, fix it tough — your vehicle’s secret weapon!

## Quick Answers

- **What is this?** U-POL Isopon P40 Fibre Glass BodyFiller 250ml Used on Bare Steel And Original Paint Repairs Damaged Body Panels Very Durable Waterproof Can be Over Painted by u-pol
- **How much does it cost?** R600 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/61627359-u-pol-isopon-p40-fibre-glass-bodyfiller-250ml-used-on)

## Best For

- u-pol enthusiasts

## Why This Product

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

## Key Features

- • **Trusted by Pros:** Top-rated with 4.6 stars and a loyal user base for consistent, reliable results.
- • **Smooth Finish Ready:** Easily sandable and over-paintable for a professional, showroom look.
- • **Steel-Strong Durability:** Sets rock-hard in just 5 minutes for rapid repairs that last.
- • **Waterproof & Weatherproof:** Built to withstand the elements, perfect for exterior vehicle repairs.
- • **Versatile Surface Compatibility:** Works seamlessly on bare steel and original paint for flawless fixes.

## Overview

U-POL Isopon P40 Fibre Glass BodyFiller is a premium 250ml two-component filler designed for rapid, durable repairs on vehicle body panels. Compatible with bare steel and original paint, it sets in 5 minutes to a waterproof, sandable, and over-paintable finish, making it ideal for professional-grade exterior repairs.

## Description

1 x U-Pol Isopon 250ml Glass fibre fillerA two-component bridging filler paste designed to repair damaged body panels on vehicles.Can be used on bare steel, and original paint surfaces.Very durable.Can be sanded and shaped if required.Easily covered with standard polyester filler.Can be over-painted directly.Waterproof.

Review: It works well. - Really good product, goes as hard as steel, easy to use. but you only have about 5mins before it sets hard.
Review: Excellent product - Great stuff, strong and fast setting bridging holes easily. Been using this stuff for years. Even used to repair rotten window cills outside. Still solid today.

## Features

- Causes damage to organs (hearing organs) through prolonged or repeated exposure (if inhaled).
- Causes serious eye irritation.
- Causes skin irritation.
- Contains bisphenol-A-(epichlorhydrin), epoxy resin, phthalic anhydride. May produce an allergic reaction.
- Harmful to aquatic life with long lasting effects.
- May cause respiratory irritation.
- Suspected of damaging fertility or the unborn child.
- U-Pol P40/S
- Glass Fibre Filler
- Repair damaged body panels on vehicles
- 250ml

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B074KHR4RJ |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 3,965 in Automotive ( See Top 100 in Automotive ) 66 in Fillers, Adhesives & Sealants |
| Colour | Beige |
| Coverage | 1 |
| Customer Reviews | 4.6 4.6 out of 5 stars (390) |
| Date First Available | 4 Aug. 2017 |
| Delivery information | We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout. |
| Finish | Eggshell |
| Included Components | Component A, Component B |
| Item Package Quantity | 1 |
| Item Weight | 480 g |
| Manufacturer | U-pol |
| Manufacturer reference | P40/S |
| Material | glass |
| Package Dimensions | 11.8 x 11.6 x 6.7 cm; 480 g |
| Part Number | P40/S |
| Size | 250 ml (Pack of 1) |
| Special Features | Waterproof |
| Usage | Exterior |

## Product Details

- **Brand:** U-POL
- **Colour:** Beige
- **Finish type:** Eggshell
- **Item volume:** 250 Millilitres
- **Paint type:** Specialty
- **Size:** 250 ml (Pack of 1)
- **Special feature:** Waterproof
- **Specific uses for product:** Exterior
- **Surface recommendation:** Metal
- **Unit count:** 250 millilitre

## Images

![U-POL Isopon P40 Fibre Glass BodyFiller 250ml Used on Bare Steel And Original Paint Repairs Damaged Body Panels Very Durable Waterproof Can be Over Painted - Image 1](https://m.media-amazon.com/images/I/61HKeX4AY9L.jpg)

## Questions & Answers

**Q: Would this work on a plastic rear motorcycle fender?**
A: Yes, it should do, though I haven't personally tried it.

**Q: Would this work for filling in cracks in a pavement / curb?**
A: What's the pavement / curb made of? How deep are the cracks and how many of them are there? How long are they? Is the pavement adjacent to the curb? Is the curb next to a main road? What's the footfall on the pavement like? If it's a main road do buses and trucks use it? I don't think so! I may be wrong. As Isopon!

**Q: Would this fix a hole in the bottom of a fibreglass boat**
A: It’s an amazing product and easy to use. I think it would fix a hole but I am insufficiently experienced in diy to know about a hole in a boat!

**Q: I have a glass fibre garden statue that has a deep hole will this work as a filler or is it just to put on metal**
A: yes this would work

## Customer Reviews

### ⭐⭐⭐⭐⭐ It works well.
*by S***E on 12 August 2025*

Really good product, goes as hard as steel, easy to use. but you only have about 5mins before it sets hard.

### ⭐⭐⭐⭐⭐ Excellent product
*by A***I on 27 June 2025*

Great stuff, strong and fast setting bridging holes easily. Been using this stuff for years. Even used to repair rotten window cills outside. Still solid today.

### ⭐⭐⭐⭐ It's okay
*by I***V on 14 September 2025*

May be my mixing skills, but seemed a bit sticky when smoothing out.

## Frequently Bought Together

- U-POL Isopon P40 Fibre Glass BodyFiller 250ml Used on Bare Steel And Original Paint Repairs Damaged Body Panels Very Durable Waterproof Can be Over Painted
- isopon Aluminium Mesh, 25 cm x 20 cm

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**Shop now:** [https://www.desertcart.co.za/products/61627359-u-pol-isopon-p40-fibre-glass-bodyfiller-250ml-used-on](https://www.desertcart.co.za/products/61627359-u-pol-isopon-p40-fibre-glass-bodyfiller-250ml-used-on)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-03-07*