Infusion with IN2 Epoxy and GC50 Epoxy Polyester Gelcoat

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Infusion with IN2 Epoxy and GC50 Epoxy Polyester Gelcoat

Infusion with IN2 Epoxy and GC50 Epoxy Polyester Gelcoat

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ahender	a ahender posted 5 Years Ago HOT Topic Details
a Group: Forum Members Posts: 38, Visits: 300	Is this correct? Roll my mold with GC50 gel coat, wait a few hours till it is tacky but will not adhere to finger, add the reinforcement and infuse with IN2 epoxy. Thanks...Alan
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Warren (Staff)	Warren (Staff) posted 5 Years Ago HOT Post Details
Group: Administrators Posts: 2.5K, Visits: 8.5K	The thicker you make it, the more chance it will look cloudy when finished. Also a much thicker gelcoat can be more brittle under flexing. Warren Penalver Easy Composites / Carbon Mods - Technical Support Assistant
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ahender	a ahender posted 5 Years Ago HOT Post Details
a Group: Forum Members Posts: 38, Visits: 300	+x Warren (Staff) - 7/14/2020 12:07:50 PM The thicker you make it, the more chance it will look cloudy when finished. Also a much thicker gelcoat can be more brittle under flexing. Thank you. I'm leading up to my first infusion, a 12 foot canoe. The IN2 resin description indicates pot life is 80-100 minutes. I'm assuming this is based on a mass of around 200 grams at approximately 70 degrees. If there is a basic formula on how how the pot life is reduced based on mass increase? Is it proportional?
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Infusion with IN2 Epoxy and GC50 Epoxy Polyester Gelcoat

ahender - 5 Years Ago

You can certainly aim for the tacky stage if you're looking to use it to help hold your fabric in place, but you can leave it until completely cured to the touch also. It's usually okay to leave it.....

MarkMK - 5 Years Ago

Thank you. I'm not equipped to spray right now. If I roll, how long do I wait between applications? Alan

ahender - 5 Years Ago

If you're referring to GC50 itself, you can only apply a single coat, as it won't bond well to itself, unlike conventional polyester gel coatings (which shouldn't be used to make epoxy parts) Once.....

MarkMK - 5 Years Ago

Thank you very much for answering my questions. At a recommendation of approximately .5 mm to .7 mm in thickness, it seems this would be impossible to do using a roller. I am not set up to spray...

ahender - 5 Years Ago

The problem with brush coating and infusion is getting the layer smooth enough. Otherwise, the brush strokes and undulations of the uneven surface distort the carbon weave slightly as the vacuum...

Warren (Staff) - 5 Years Ago

Thank you again. Would there be an issue if the GC50 exceeds the recommended .5-.7 mm?

ahender - 5 Years Ago

The thicker you make it, the more chance it will look cloudy when finished. Also a much thicker gelcoat can be more brittle under flexing.

Warren (Staff) - 5 Years Ago

Thank you. I'm leading up to my first infusion, a 12 foot canoe. The IN2 resin description indicates pot life is 80-100 minutes. I'm assuming this is based on a mass of around 200 grams at...

ahender - 5 Years Ago

Remember the pot life is only relevant to its time in the pot. For a large infusion you use perhaps a kilo at most in the jug at first as it will fly out initially. Then only top it up when it needs....

Warren (Staff) - 5 Years Ago

Thank you.

ahender - 5 Years Ago

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