--- product_id: 343341497 title: "Fibreglass Resin Polyester Value - GRP, Roofing, Ponds, Laminating (5.0, Kilograms)" brand: "swindon composite supplies" price: "€ 83.42" currency: EUR in_stock: true reviews_count: 8 category: "Swindon Composite Supplies" url: https://www.desertcart.pt/products/343341497-fibreglass-resin-polyester-value-grp-roofing-ponds-laminating-5-0 store_origin: PT region: Portugal --- # 10-20 min working time 2% MEKP hardener mix ratio Store cool, avoid heat Fibreglass Resin Polyester Value - GRP, Roofing, Ponds, Laminating (5.0, Kilograms) **Brand:** swindon composite supplies **Price:** € 83.42 **Availability:** ✅ In Stock ## Summary > ⚡ Fix it fast, fix it right — resin that works as hard as you do! ## Quick Answers - **What is this?** Fibreglass Resin Polyester Value - GRP, Roofing, Ponds, Laminating (5.0, Kilograms) by swindon composite supplies - **How much does it cost?** € 83.42 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/343341497-fibreglass-resin-polyester-value-grp-roofing-ponds-laminating-5-0) ## 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 - • **Fast-Acting Resin:** 10-20 minute working window lets you tackle projects efficiently without downtime. - • **Versatile Application:** Ideal for fibreglass roofing, pond repairs, mouldings, and composite lay-ups. - • **Small Batch, Big Impact:** Family-owned, rigorously tested resin designed for enthusiasts who demand professional results. - • **Trusted Quality from Experts:** Sourced from UK/EU with 30+ years of racing composite experience behind every batch. - • **Precision Mix for Perfect Cure:** Optimized 2% MEKP hardener ensures reliable, consistent curing every time. ## Overview This 5kg polyester fibreglass resin kit includes MEKP hardener for a precise 2% mix ratio, delivering a 10-20 minute working time optimized for fibreglass matting repairs and laminations. Sourced from UK/EU suppliers and developed by a family-owned company with 30+ years of composite racing repair expertise, it’s perfect for roofing, pond repairs, and mouldings. Note: strong polyester resin odor and not Lloyds approved for marine insurance. ## Description Shop Swindon Composite Supplies : Fibreglass Resin Polyester Value - GRP, Roofing, Ponds, Laminating (5.0, Kilograms). Free delivery on eligible orders of £20 or more. Review: Does exactly as advertised - I am cack-handed as using this stuff. Repairing a Motorhome bumper was made easier by this stuff. Quality and worth the money. I also bought some of the fibre-glass matting, which turned out to be better than any of the other material I bought. Easily cut, wetted by the resin and applied to an area cleaned with Acetone and roughed by sandpaper. Very happy with the products - less happy with my skill repairing bumpers :-) I would say as a word of caution. I found I needed less hardener than the directions stated to give me long enough to work with it. Do a small sample first and see how it hardens for you in your own climate, situation and material. Although, the first couple of goes, when the Resin was hardening up made me up the speed of my game - and that's not a bad thing :-) Review: Price ok for 1 litre. - Good and price ok. How long it last, I am not sure....take time to review and test. ## Features - Fibreglass resin - Suited for repairs, mouldings , lay ups, fibreglass roof systems, ponds . - Supplied with sufficient MEKP hardener - To be mixed at the advised 2% mixing rate. The resin is NOT lloyds approved - we have other similar desertcart listings that are Lloyds approved. - Shelf Life- 4months - store in a cool dry place - out of sunlight. WARNING - Polyester resin has a VERY POWERFUL SMELL - common to all polyester resins - Colour of resin may change dependent on stock but will still meet all the quoted specification - WARNING - Polyester resin has a VERY POWERFUL SMELL - common to all polyester resins ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B09BBCSQHW | | Best Sellers Rank | 556 in Business, Industry & Science (See Top 100 in Business, Industry & Science) 1 in Fiberglass Raw Materials | | Colour | Blue-green | | Customer Reviews | 4.6 4.6 out of 5 stars (206) 4.6 out of 5 stars | | Date First Available | 27 July 2021 | | Included Components | Catalyst & Syringe | | Item Model Number | Ppoly Value Resin | | Manufacturer | Swindon Composite Supplies | | Material | Resin | ## Images ![Fibreglass Resin Polyester Value - GRP, Roofing, Ponds, Laminating (5.0, Kilograms) - Image 1](https://m.media-amazon.com/images/I/61vf-x7HgyL.jpg) ## Questions & Answers **Q: I can smell the resin- has it leaked** A: Unlikely - This is Polyester resin and has a very powerful and strong smell- The smell will often permeate the plastic bottle and cardboard packaging giving the impression of a leak. **Q: Does the Resin stay BLUE** A: No- The Blue colour is just a dye that dissipates once the resin is activated. it then takes a more natural colour maybe slightly green. See the cured fibreglass sample above. **Q: Is the resin Lloyds approved, What does Lloyds approved mean?** A: No the resin is not Lloyds approved but its is a similar resin. Lloyds approval is from Lloyds insurers specifically for Marine Craft repairs. Such marine repairs often need approved repair products to maintain insurance cover. **Q: What is the working time ?** A: Ranges from 10-20 minutes : Directly depends on ambient temperature & volume poured. Hot temps and large volumes rapidly reduce working time to barely minutes on a very hot day. Avoid very hot conditions , mix small manageable quantities & repeat. **Q: Can I used the resin to Cast or fil voids.** A: No - The resin on its own will significantly overheat. However if mixed with "Marble filler Powder" at 1 to 1 by weight then castings and large volumes pours can be achieved. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Does exactly as advertised *by G***F on 15 September 2025* I am cack-handed as using this stuff. Repairing a Motorhome bumper was made easier by this stuff. Quality and worth the money. I also bought some of the fibre-glass matting, which turned out to be better than any of the other material I bought. Easily cut, wetted by the resin and applied to an area cleaned with Acetone and roughed by sandpaper. Very happy with the products - less happy with my skill repairing bumpers :-) I would say as a word of caution. I found I needed less hardener than the directions stated to give me long enough to work with it. Do a small sample first and see how it hardens for you in your own climate, situation and material. Although, the first couple of goes, when the Resin was hardening up made me up the speed of my game - and that's not a bad thing :-) ### ⭐⭐⭐⭐⭐ Price ok for 1 litre. *by L***Y on 13 July 2026* Good and price ok. How long it last, I am not sure....take time to review and test. ### ⭐⭐⭐⭐⭐ Fixed my mower *by A***N on 8 July 2026* Great product ## Frequently Bought Together - Swindon Composite Supplies : Fibreglass Resin Polyester Value - GRP, Roofing, Ponds, Laminating (5.0, Kilograms) - FEVERWORK 1x5m 30g CSM Fiberglass Mat Fibreglass Strand Pads Fibreglass Roll Marine for GRP Resin - Polycraft 450gsm GRP Fibreglass Chopped Strand Mat 10m x 1m --- ## 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.pt/products/343341497-fibreglass-resin-polyester-value-grp-roofing-ponds-laminating-5-0](https://www.desertcart.pt/products/343341497-fibreglass-resin-polyester-value-grp-roofing-ponds-laminating-5-0) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-10-21*