---
product_id: 49452056
title: "Hardener (PACK OF 2) 40g Tube Red for 2K Body fillers, Fibreglass repair fillers, Resins."
brand: "hardener"
price: "75 Lei"
currency: RON
in_stock: true
reviews_count: 8
category: "Hardener"
url: https://www.desertcart.ro/products/49452056-hardener-pack-of-2-40g-tube-red-for-2k-body
store_origin: RO
region: Romania
---

# Fast curing action Fibreglass & resin compatible High viscosity for precision Hardener (PACK OF 2) 40g Tube Red for 2K Body fillers, Fibreglass repair fillers, Resins.

**Brand:** hardener
**Price:** 75 Lei
**Availability:** ✅ In Stock

## Summary

> 🛠️ Fix it fast, fix it flawless — be the pro everyone envies!

## Quick Answers

- **What is this?** Hardener (PACK OF 2) 40g Tube Red for 2K Body fillers, Fibreglass repair fillers, Resins. by hardener
- **How much does it cost?** 75 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/49452056-hardener-pack-of-2-40g-tube-red-for-2k-body)

## Best For

- hardener enthusiasts

## Why This Product

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

## Key Features

- • **Dual-Pack Value:** Two 40g tubes for extended projects or backup—never run out mid-fix.
- • **Rapid Cure Power:** Accelerates your repair workflow with lightning-fast hardening.
- • **Fibreglass Friendly:** Specifically engineered to bond seamlessly with fibreglass and polyester fillers.
- • **Precision Viscosity:** High viscosity formula ensures smooth, controlled application every time.
- • **Pro-Grade Reliability:** Trusted by thousands with a 4.6-star rating for consistent, professional results.

## Overview

This pack of two 40g red hardener tubes contains dibenzoyl peroxide paste designed for rapid curing of 2K body fillers, fibreglass repair fillers, and resins. Its high viscosity ensures precise application, making it ideal for polyester body fillers and fibreglass repairs. With a strong reputation and a 4.6-star rating, it’s a must-have for automotive professionals and DIY enthusiasts aiming for durable, professional-grade finishes.

## Description

Pack Of 2 40G Tube Red Hardener For 2K Body Fillers, Fibreglass Repair Fillers, Resins. Hardener Dibenzoyl Peroxide Paste. For Use With Polyester Body Fillers, Easy Sand, Fibreglass Repair Filler And Resins.

Review: Quality hardener - Cheapest way to buy with the small amount supplied in filler. Good product
Review: Does the job - Does the job, good price, fast delivery.

## Features

- Causes serious eye irritation.
- Heating may cause a fire.
- May cause an allergic skin reaction.
- Very toxic to aquatic life.
- Hardening paste with dibenzoyl peroxide.
- For use with polyester structure sealant, fiberglass repairs and resins.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01FZ4D6IS |
| Batteries | 2 C batteries required. |
| Best Sellers Rank | 2,059 in Automotive ( See Top 100 in Automotive ) 26 in Fillers, Adhesives & Sealants |
| Brand | Hardener |
| Customer Reviews | 4.6 4.6 out of 5 stars (622) |
| Date First Available | 21 May 2016 |
| 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. |
| Item Weight | 100 g |
| Item model number | 5010372702407 |
| Manufacturer | Tetrosyl |
| Manufacturer part number | EXH001 |
| Package Dimensions | 12 x 6.2 x 2.5 cm; 100 g |
| Special Features | Fibreglass Compatible |
| Viscosity | High Viscosity |

## Product Details

- **Brand:** Hardener
- **Item form:** Paste
- **Material:** Dibenzoyl Peroxide
- **Special feature:** Fibreglass Compatible
- **Specific uses for product:** Fibreglass

## Images

![Hardener (PACK OF 2) 40g Tube Red for 2K Body fillers, Fibreglass repair fillers, Resins. - Image 1](https://m.media-amazon.com/images/I/71upgFFAH6L.jpg)

## Questions & Answers

**Q: using it to fill hairline cracks in fibreglass shower tray - can it be sanded, overpainted, and is it waterproof?**
A: This is just a hardener. It is an additive for curing resin.  It is not a resin itself.  Thank you

**Q: does this work with big boy fibreglass**
A: Hi Colin
If you was originally supplied with red hardener with your product then this will do the job.
Red hardener is used for a majority of fillers and fibreglass fillers.
If need need any further information please do not hesitate to contact the Qpaints Team

**Q: Does this product garden resin jewellery and will it discolour the jewellery?**
A: don't think so but depends on the resin you are using too. Alsodo a test run first.

**Q: Is this harder red or white in colour?**
A: From memory its red but I used very little in the resin, so it did not really colour it. it did the job, but I did a test first to check that a small amount would harden the old resin I had.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Quality hardener
*by J***S on 20 November 2025*

Cheapest way to buy with the small amount supplied in filler. Good product

### ⭐⭐⭐⭐⭐ Does the job
*by M***K on 27 July 2025*

Does the job, good price, fast delivery.

### ⭐⭐⭐⭐ Hardener for body-filler .
*by T***B on 25 October 2025*

All good . Quick delivery

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**Shop now:** [https://www.desertcart.ro/products/49452056-hardener-pack-of-2-40g-tube-red-for-2k-body](https://www.desertcart.ro/products/49452056-hardener-pack-of-2-40g-tube-red-for-2k-body)

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-05*