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Resin FAQ's

Resin, Catalyst & Laminating

Commonly asked questions on the different types of resins on offer at FibreGlassDirect. 

0 Clear Casting Resin

Our Low-Cost General Purpose Resin is a re-blended resin which is suitable for non-critical DIY repairs (such as downpipe repairs etc.) Lloyds Approved Resin is a higher quality Polyester Resin which has been tested and approved by the Lloyds Register. It can be used for potable water storage projects, marine, pond and boat repairs. It is also WRAS Approved. Both are polyester resins.

For most resins, add 2% by weight, i.e. 1kg of resin requires 20g of Catalyst (based on room temperature). Alternatively, use our Materials Quantity Calculator For Clear Casting Resin the catalyst addition is 1%.   For colder conditions, more catalyst may need to be mixed into the resin to ensure a cure. In the winter months, our Roofing Kits will increase from 2% catalyst addition to 3%. Likewise, in warmer climates, less catalyst may be needed (or smaller batches mixed) as warmer temperatures will decrease the working times of your... Read more

Work out how much Glass you have by weight and multiply by 2.5. i.e. for 2kg of fibreglass mat, you will require 5kg of resin. Alternatively, use our Materials Quantity Calculator. Roofing applications may require more resin if the resin is applied to OSB3 boards as the boards will soak more resin. Our materials calculator will give exact requirements depending on application e.g. Roofing, Pond Lining or General Fibreglass Projects.

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