Gelcoat crocodile

tunnels · May 23, 2012

tinhorn said: ↑

Forgive me for my lack of precision. As you point out, the recommended percentage of catalyst will vary with temperature (unless, like I was, you're able to control the shop temperature). Hot as possible simply means to use 1/4% more than a reasonable gelcoater would use.

Same with the first layup of 2-ounce mat. (Yes, I used e-glass.) Use just enough resin to wet out the 'glass, then use a paint roller to mop up any excess. I've only experienced prerelease when I had a thick coating adjacent to a thin coating of gelcoat. (I strive for 18 mils in three passes.)

Once the gelcoat has properly cured and the skin coat is in, you can complete the layup in a little more relaxed fashion.
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I make it a point of never playing with gel coat catalyst percentages . The manufacture has done all the testing and provides you with the data . If you play you upset the hardness and the durability of the gel coat
Temprature is a critical factor but you can choose to spray morning when its cool or afternoon when its warmer . and use the catalyst whats recommended !!

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Gelcoat crocodile

tunnels Previous Member

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