Epoxy tooling gel coat


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Martin Fraser
Martin Fraser
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Hi folks,

I've been using the above on my current project (model aircraft) and have been impressed with it's hardness when cured. But I find it's quite thick to brush on and doesn't flow very well, leaving quite an irregular surface .  Is it possible to thin it slightly so that it flattens out better?




Many thanks, Marty
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aza993a
aza993a
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I'm guessing you're using it to coat something and desire it to lay flat to give a regular surface, say plug production or surfacing a tool. And not using it to capture the surface of a plug, as the surface detail would be replicated and thus the regularity in the surface not an issue.  Try using a less thixotropic resin or adding in a wetting agent to decrease the surface tension. I've tried a number of wetting agents and a very smooth flat surface can be achieved on the surface of a plug simply by brushing on a regular epoxy treated with a dry wax teflon out of a spray can at 1-2%.
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