tonykalil

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The hull plug was sealed with 3 coats of sealer, and 5 coats of FLEX 5. Sealing and Flexing only takes about an hour total, but the hull would be good to pull 7 molds off of it with this type of mold release.

The plug is then shot with Orange tooling gel, and then a 3oz skin coat of chopped glass roving.

The skin coat is designed to make a barrier between the gelcoat and the bulk glass which will generate considerable heat. You can build a mold or a part in one step, but you will most often see heat distortion in the surfaces of the parts.

By letting the skin coat cure properly like the real boats, you will make a barrier that insulates the heat of the glass buildup process from distorting the gelcoat surface. This is critical, since my mold will be too finely detailed to sand any heat distortion out of.