Epoxy Bonding Polyester Gelcoats Designed to Bond to Epoxy Resin Systems “We have been using Crystic GC 252PA for a number of years to manufacture racing sailboats as it is the only polyester gelcoat on the market that bonds to an epoxy resin. It’s been used on many boats without any adhesion problems in tough conditions. We can de-mould very quickly so have cut down dramatically on processing time. It’s much easier to apply than epoxy gelcoats and repairs can be done in a fraction of the time. We are very happy to recommend this product.” Jamie Stewart - Synthesize Yachts & Design LDC Racing Sailboat manufactured by Synthesize Yachts and Design using Crystic GC 252PA “Crystic GC 252PA is extensively used by Premier Composites with an epoxy resin system, as it is extremely compatible. The main application is for invalid ramps within the transport sector. It is Premier's preferred gelcoat because it is easy to apply, has rapid cure and is well suited to our production processes. We have been using it for over 5 years now, and are happy to have a reliable, cost effective product that does not suffer from batch to batch variation.” Richard Wild - Premier Composites

Crystic® Epoxy Bonding Gelcoats ) )+ ( 0C Vi sc os ity (P oi Ge se lti ) m e* (m Sp in s) ec ifi c Gr av Ha ity rd ne ss (B HD ar co T l) WIND ENERGY* MARINE* BUILDING* INDUSTRIAL* TRANSPORT* Te ns ile St re Te ng ns th ile (M M Pa od ) El ul on us (G Br gat Pa ea ion ) k( a t % 4 4 4 4 4 A unique range of polyester gelcoats with exceptional adhesion to epoxy substrates allowing them to be used instead of an epoxy gelcoat. These gelcoats have been used successfully by moulders who find the product range offers excellent performance in demanding epoxy applications whilst retaining the ease of...

Operating Performance Comparison of Tg measured by Peak Tan from DMTA The higher Tg demonstrated by Crystic GC 252PA means it can withstand higher operating temperatures than the epoxy gelcoat. Mechanical Performance When Crystic Epoxy Bonding Gelcoats are used for the production of a typical laminate, the finished structure retains the excellent mechanical properties associated with epoxy systems. Values are similar across the Crystic Epoxy Bonding Gelcoat range. Gelcoat Back Up Delay Time 100 Temperature oC Note 1: GC 252PA curing schedule of 16 hours at 40oC Note 2: Epoxy Gelcoat curing schedule...

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