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Can I put polyester gelcoat over cured epoxy?

April 26, 2017cured Epoxy gelcoat polyester

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Can I put polyester gelcoat over cured epoxy?

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In general, polyester resins won’t cure properly or bond well to epoxy resin products without a “tie-coat” barrier resin in between. System Three SB-112 resin system can be used as a tie coat in between epoxy laminating or coating resins, and polyester laminating or gelcoat resins. Using this resin allows you to gelcoat an epoxy-built or epoxy-repaired boat.