---
product_id: 267575393
title: "Fiberglass Supply Depot Mek Peroxide Catalyst 4oz Clear"
brand: "fiberglass supply depot"
price: "15660 Ft"
currency: HUF
in_stock: true
reviews_count: 8
url: https://www.desertcart.hu/products/267575393-fiberglass-supply-depot-mek-peroxide-catalyst-4oz-clear
store_origin: HU
region: Hungary
---

# 4oz for 4 gallons Includes measuring tools Activator for resins Fiberglass Supply Depot Mek Peroxide Catalyst 4oz Clear

**Brand:** fiberglass supply depot
**Price:** 15660 Ft
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate Your Craft with Mek Peroxide!

## Quick Answers

- **What is this?** Fiberglass Supply Depot Mek Peroxide Catalyst 4oz Clear by fiberglass supply depot
- **How much does it cost?** 15660 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/267575393-fiberglass-supply-depot-mek-peroxide-catalyst-4oz-clear)

## Best For

- fiberglass supply depot enthusiasts

## Why This Product

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

## Key Features

- • **Clear and Convenient:** Easy-to-use clear bottle ensures no mess during application.
- • **Professional Quality:** Designed for serious creators who demand the best results.
- • **Transform Your Projects:** Unlock the full potential of your gelcoat and resins with Mek Peroxide!
- • **Powerful Chemical Reaction:** Catalyzes curing for a flawless finish on every project.
- • **Precision at Your Fingertips:** Comes with a measuring cup for accurate mixing every time.

## Overview

Mek Peroxide Catalyst is a 4oz activator designed for use with gelcoat, polyester, and vinylester resins, providing enough catalyst for approximately 4 gallons of resin. It comes in a clear, user-friendly bottle and includes a catalyst chart and measuring cup for precise application, ensuring a successful chemical reaction for optimal curing.

## Description

Full description not available

## Features

- Mek Peroxide is used as a activator for Gelcoat, polyester, and vinylester resins.
- 4oz bottle is enough for approximately 4 gallons of resin. Cannot be used by itself must be used with resins
- Comes in clear easy to use bottle
- Mek P catalyst chart and measuring cup is included
- Creates chemical reaction with resin for curing

## Product Details

- **Material:** mek peroxide
- **Brand:** Fiberglass Supply Depot
- **Color:** Clear
- **Shape:** Flat
- **Item Weight:** 4 Ounces

## Images

![Fiberglass Supply Depot Mek Peroxide Catalyst 4oz Clear - Image 1](https://m.media-amazon.com/images/I/71uPcLageZL.jpg)

## Questions & Answers

**Q: shelf life?**
A: It has a shelf life of 7 months but anything over 90 days I would do a test because shelf life can vary depending on how it is stored. Heat is not its friend.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works!
*by J***R on August 26, 2025*

Works great for hardening polyester resin. Good value.

### ⭐⭐⭐⭐⭐ Works great
*by A***R on August 20, 2025*

Works perfectly

### ⭐⭐⭐⭐⭐ Good surface sealer for gel coat work
*by A***R on April 23, 2024*

I use this with non-waxed (laminating) gel coat. I prefer non-waxed as it allows me to build up teh gel coat thickness faster. When done I have to seal the surface from air so the gel coat can cure. This PVA does the job. When the gel coat is cured I simply wash it off with soap and water. This stuff is quite viscus so I was not able to spray it without thinning. I usually thin 1:1 with water and use a re-purposed window cleaner pump spray bottle. Several squirts is all it takes on small areas (less than 10cm x 10cm). Even the thinned product will seal successfully on gel coat repairs.

## Frequently Bought Together

- Mek Peroxide Catalyst 4oz Clear
- Wax Additive - 4 oz Surfacing Agent for use with Gelcoat and Polyester resins
- MEK Peroxide Adjustable Volume Dispensing bottle 16oz. (500ml)

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-03-13*