Thread: Discussion IOM General Discussion
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Old Oct 13, 2011, 03:34 AM
Craig Richards is offline
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Cape Town South Africa
Joined Jan 2010
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I dont think pigmented resins are allowed yet throughout the boat, but this is just the external coat instead of paint. The laminated layers of cloth are all with clear epoxy.

I tried to make an epoxy gelcoat by adding some red pigment and a thickening agent, but its almost impossible to get it opaque enough. If you look in the picture, you will see the boat is fairly transparent.

In trying to get enough pigmented resin into the mould to make it opaque, I ended up with a fairly thick layer and a boat 70 grams underweight. The painted boat is 280g underweight by comparison.

The extra 200g of epoxy coating have definitely made the boat a bit thicker and noticeably stiffer, even though they have the same layup (80g, 165g,165g)
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