Resin

Epoxy Resin

Epoxy is a chemical that is part of an epoxy resin system. Epoxy resin systems are used widely in industry because of their strong adhesive properties, chemical resistance and toughness. Common two-part epoxy resin systems contain epoxy resin, catalysts/curing agents, and diluents and/or other additives.

Epoxy resins are very low odour compared to other resins like polyester and vinylester and generally involve mixing the resin with hardener in relatively equal proportions. E.g. 2:1, 3:1 or sometimes 4:1 Depending on the brand. Hardeners are available in Slow, Medium and Fast.

Polyester Resin

Polyester resins are the most widely used resin systems, particularly in the marine industry. The majority of dinghies, yachts and workboats built in composites make use of this resin system.

Polyester resins are not widely used in the manufacture and repair of wind turbine blades due to the finished cure being weaker than epoxy resin systems.

Mix ratio of Resin + 2% Hardener (MEKP- Methyl ethyl ketone Peroxide) by weight.