FSL Value Range General Purpose Polyester Resin (Inc Catalyst)
FSL Value Range General Purpose Polyester Resin (Inc Catalyst) additional 1FSL Value Range General Purpose Polyester Resin (Inc Catalyst) additional 2FSL Value Range General Purpose Polyester Resin (Inc Catalyst) additional 3FSL Value Range General Purpose Polyester Resin (Inc Catalyst) additional 4FSL Value Range General Purpose Polyester Resin (Inc Catalyst) additional 5FSL Value Range General Purpose Polyester Resin (Inc Catalyst) additional 6FSL Value Range General Purpose Polyester Resin (Inc Catalyst) additional 7
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£702.00 ex VAT£842.40 inc VAT

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Description

The FSL Value Range General Purpose Polyester Resin is an affordable, multipurpose, pre-accelerated thixotropic polyester resin for GRP boat repairs, fibreglass flat roofing, mould making, fibreglass car and caravan repairs and general laminating. It provides you with a range of benefits, including rapid glass fibre impregnation to ensure strong, smooth laminates for excellent performance in both professional and DIY projects.

Easy to apply with a clever inbuilt colour change mechanism with catalyst addition, the resin will change from pale blue to green prior to a clear translucent final cure. It also features low exotherm which makes this resin ideal for multiple layer laminates and low styrene emissions for a safer and more practical application with reduced odours.

  • Cost-effective, versatile resin for multiple GRP applications
  • For GRP repairs, moulds, fibreglass flat roofing & general laminating
  • Excellent fibre impregnation for strong, durable results
  • Easy application with built-in colour-change curing
  • Safe and practical with low styrene emissions
  • Adjustable catalyst ratios for all working conditions
  • Sizes available: 1kg, 2.5kg, 5kg, 10kg, 20kg, 225kg & 225kg (No Catalyst)

Catalyst Mixing Ratio

Use standard MEKP Organic Peroxide Catalyst added by weight at 2% in cold conditions. In warmer working conditions add 1%. In very cold working conditions add 3% - 4%. Do not exceed 4% catalyst in any circumstances.

Curing Times

Our Value Range Polyester General Purpose Resin has a pot life of the following:

  • 15 Degrees 1% Catalyst - 36 Minutes
  • 20 Degrees 1% Catalyst - 22 Minutes
  • 25 Degrees 1% Catalyst - 16 Minutes
  • 15 Degrees 2% Catalyst - 23 Minutes
  • 20 Degrees 2% Catalyst - 16 Minutes
  • 25 Degrees 2% Catalyst - 11 Minutes

Code:

Customer Reviews5.05 5.0/5 Based on 17 reviewsShow all reviews

5

Fibreglass resinReviewed by Ronniepeel25 on 02 May 2026

Great stuff, use in a well ventilated place., easy to work with great for craft work, gives enough time to complete a project before it cures, happy with this, will buy again

5

Great packaging and productReviewed by Craigfisher957 on 18 Apr 2026

Fast delivery and great product

5

Excellent serviceReviewed by Gerainto64 on 10 Mar 2026

Excellent service quality product fast service and delivery

5

Great all roundReviewed by Rich_hughes90 on 31 Jan 2026

Excellent, would definitely use again

5

Fibreglass resinReviewed by Debsam65 on 25 Jan 2026

Ordered and paid online, very easy to do. Went straight there and it was already to take home. Great customer service

Fibreglass Supplies Delivery Services

Fibreglass Supplies use Royal Mail, APC Overnight and the National Hazardous Pallet Network for our Next Day Delivery Services.

Royal Mail

Orders of up to 2kg will usually be sent using a Royal Mail First Class Service for National Next Day Delivery.

APC Overnight

Orders over 2kg and up to 30kg will be sent using a Fully Tracked Next Day Service using APC Overnight. Some smaller Roofing Kits that weigh up to 30kg in Total would  be sent on this service. This includes Resins, Gelcoats and Topcoats which are classed as Hazardous and are decanted into 5kg Tins or Pales to comply with the Transportation of Hazardous Goods Act.

Pallet Network

All our larger orders by weight would usually be sent using the National Pallet Network. Non Hazardous Items can be sent using either the Pallet Network or APC Overnight.

All Hazardous goods over 30kg (which includes Roofing Kits over 30kg in total weight) are usually sent using the National Pallet Network on a Fully Trackable Next Day Delivery Service.

Click & Collect

All orders are eligible for Click & Collect. Pick up your items conveniently from our Cattedown Store, available Monday to Friday between 7:30 am and 4:30 pm (excluding Bank Holidays).

NB - Please note that our Direct Control of the Delivery Element extends to making sure we pick pack and dispatch all orders on time. As we have no Direct Control over the performance of any individual courier we would not be responsible for refunds due to the late arrival of any order.

We always work hard with customers to overcome any issues that arise so please call us if you do have any concerns with regard to tight delivery deadlines so that we can provide great advice if needed.

Returns Policy

Please read our Returns policy laid out below.

Under the Consumer Contracts Regulations 2014 you are entitled to return goods within 14 days of delivery for a refund of the cost of the goods. The delivery costs and any packaging  are not included in the refund. The returned goods should be in the original containers and unopened. It is the customers responsibility to pay for the cost of returning goods to our Business Premises. 

Some of our products are made to order and as such once ordered are non refundable and non returnable. These include coloured gelcoats, topcoats and resins.

These Consumer Regulations do not apply to business purchases (B2B). However we will always help in any way and look to find a suitable and mutually acceptable solution should any issues arise through the order process.

It is the customers responsibility to understand the suitability of the product before its use. Technical and Safety Data Sheets are available for all products where applicable. These can be found on most product description pages or if not are available on request. If you are unsure please do not hesitate to contact us for expert advice and product suitability and application.

To organise a return please contact us on the following.

  • Telephone: 01752 658498
  • Email: info@fslplymouth.co.uk
Is the cured resin ok with diesel fuel. I need to seal the inside of a steel tank which will be very thoroughly cleaned. I anticipate 3 days curing in warm environment. Many thanks
Hi Simon. So sorry this has taken so long to answer. Please do not use general purpose as this will erode in ni time at all. The product you need is RTS 3000 as this is a proper tank sealer.
Does the value 5kg resin come with catalyst and any measuring syringe...for accurate mix?
Hi Yagesh. Yes it does come with a catalyst but no syringe.
Can I arrange for a cash on delivery order ? …..
Hi Simon. Only if this is local, Ie Plymouth as we can not allow other carriers to collect funds.
hi can i request the data sheets for 1k polyester resin lot number 26062020 please and mekp catalyst hardener
Hi Adam. I can not send the info through this site so will email you seperately.
How many drops is 1% of catalyst? And how big 5KG of Resin like I’m needing to get deliver to It-Post box so cannot b too big! I need to do both sides of my Narrowboat with it I have huge fibreglass roll ready to go! Will me getting 2X5kg resin n corresponding hardeners do it?!
Hi Mary. A 5kg bottle is about a gallon. We supply syringes 10ml,20ml,50ml and so on. 1% is 10ml per kg. We can deliver to where ever you want.
What is the approximate coverage please? I need to cover about 2m^2 what size can should I purchase? Thanks.
Hi Alistair. You will need approx 1.4kg of resin to coat 1 mtr square of 450grm CSM. Hope this helps.
Hello sales Can I use this product on a a breeze block pond base and sides, with the fibre matting. Then use a fish safe top coat paint. Please reply Jamie
Hi Jamie. Yes you can use this product on breeze blocks. Please ensure the blocks are sealed (Prymax Sealer) and use a CSM( Chopped Strand Mat) with it. Perfect for this application.
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