--- product_id: 438205807 title: "MEKP Hardener activator for Polyester Resin gelcoat and Topcoat Products (100ml)" brand: "swindon composite supplies" price: "96.33 DT" currency: TND in_stock: true reviews_count: 8 category: "Swindon Composite Supplies" url: https://www.desertcart.tn/products/438205807-mekp-hardener-activator-for-polyester-resin-gelcoat-and-topcoat-products store_origin: TN region: Tunisia --- # Fast curing at 1-3% mix ratio 100g precise dosing for ~5kg resin Specialized for polyester resin systems MEKP Hardener activator for Polyester Resin gelcoat and Topcoat Products (100ml) **Brand:** swindon composite supplies **Price:** 96.33 DT **Availability:** ✅ In Stock ## Summary > ⚡ Harden your projects faster, smarter, and safer! ## Quick Answers - **What is this?** MEKP Hardener activator for Polyester Resin gelcoat and Topcoat Products (100ml) by swindon composite supplies - **How much does it cost?** 96.33 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/438205807-mekp-hardener-activator-for-polyester-resin-gelcoat-and-topcoat-products) ## Best For - swindon composite supplies enthusiasts ## Why This Product - Trusted swindon composite supplies brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Optimized Quantity:** 100g bottle perfectly sized to harden up to 5kg of polyester resin—no waste, no overbuying. - • **Rapid Cure Control:** Adjust catalyst ratio (1-3%) to tailor pot-life and cure speed for your project timeline. - • **Safety First Formula:** Powerful oxidizer with clear safety guidelines—professional-grade performance with responsible handling. - • **Compact & Postal Friendly:** Flat, secure bottle design minimizes shipping damage risk—ready to arrive safely at your workspace. - • **Polyester Resin Specialist:** Engineered exclusively for polyester gelcoat and topcoat systems—ensures reliable, consistent results. ## Overview MEKP Hardener 100ml is a precision catalyst designed for polyester resin gelcoat and topcoat applications. With a recommended 1-3% mix ratio, this 100g bottle efficiently hardens up to 5kg of resin, delivering fast, reliable curing tailored to your project needs. Packaged in a postal-friendly flat bottle, it ensures safe delivery and easy handling. Note: strictly for polyester systems, not compatible with epoxy or ISOPON resins. Follow safety protocols carefully due to its potent oxidizing properties. ## Description MEKP Catalyst Hardener 100g For Polyester Resin Gelcoat and TopcoatYou will get 100g hardener which assuming a 2% mix ratio will be sufficient for approx 5kg of resin. MEKP Catalyst for polyester resin topcoat & gelcoat systems. MEKP Catalyst is typically used as a polyester resin catalyst, fibreglass catalyst or vinylester resin systems at a ratio of between 1 and 3%, according to the pot-life and cure speed required and the ambient temperature. Always follow the guidelines that accompany your specific resin system. We of course have tested this hardener on the polyester resin systems we sell, It will work with other polyester systems we advise to do a sample test before undertaking a larger project. I would expect it to work with other polyester resins and topcoats that use the similar liquid MEKP hardener . IMPORTANT - We cannot guarantee this hardener will work with resins purchased elsewhere so it is critical to do a test beforehand before undertaking a larger project. The hardener is not compatible with ISOPON resin products that use a RED paste type of Hardener. NOTE - All resins are not the same -the two more common resins are either POLYESTER or EPOXY . This MEKP catalyst WILL NOT work with Epoxy resin . If you are using this hardener with a 3rd party resin, it is essential to do a sample test first. Safety Information MEKP is a powerful oxidiser and corrosive. Please observe the health and safety data. Review: Good - Good Review: Its hard stuff - It did the job ## Features - Causes serious eye damage. - Causes severe skin burns and eye damage. - Harmful if inhaled. - Harmful if swallowed. - Heating may cause a fire. - Product sent in a postal friendly FLAT bottle - Care shoudl be taken to avoid knocking the bottle over. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0B1BH6GTL | | Batteries Required? | No | | Batteries included? | No | | Colour | Clear | | Customer Reviews | 4.6 4.6 out of 5 stars (64) | | Date First Available | 14 May 2022 | | 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. | | Guaranteed software updates until | unknown | | Item Package Quantity | 1 | | Item Weight | 100 g | | Item model number | MEKP 100ml | | Manufacturer | Swindon Composite Supplies | | Material | Resin | | Part Number | MEKP 100ml | | Power Source | hand_powered | | Product Dimensions | 8 x 7 x 2 cm; 100 g | | Size | Small | ## Images ![MEKP Hardener activator for Polyester Resin gelcoat and Topcoat Products (100ml) - Image 1](https://m.media-amazon.com/images/I/51s8f+K1yQL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Hallo, I actually need 50% mekp if this is 100% can it be mixed with acetone?** A: Excellent product ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good *by K***R on 4 August 2026* Good ### ⭐⭐⭐⭐⭐ Its hard stuff *by G***E on 27 June 2026* It did the job ### ⭐⭐⭐⭐⭐ Hardener *by S***E on 2 May 2026* Good value for money,good quality ## Frequently Bought Together - Swindon Composite Supplies : MEKP Hardener activator for Polyester Resin gelcoat and Topcoat Products (100ml) - Swindon Watersports Polyester Resin Kit, Fibreglass Resin -Inc Hardener, Lloyds, Pro Quality Encore 30, H13212 TAE (1000g) - 600ml Clear Plastic Mixing Cup - 10pk - No Lid --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/438205807-mekp-hardener-activator-for-polyester-resin-gelcoat-and-topcoat-products](https://www.desertcart.tn/products/438205807-mekp-hardener-activator-for-polyester-resin-gelcoat-and-topcoat-products) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-11-13*