Infusion with IN2 Epoxy and GC50 Epoxy Polyester Gelcoat

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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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MarkMK	MarkMK posted 5 Years Ago HOT Post Details
Group: Forum Members Posts: 338, Visits: 2K	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 overnight if needs be and it'll still adhere well to the epoxy. It doesn't apply very well with a brush, but rolling it might give better results. Spraying is usually the best method of application as it's quite thinly formulated, so it might not adhere too well to mould sides if applying by hand Edited 5 Years Ago by MarkMK
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ahender	a ahender posted 5 Years Ago HOT Post Details
a Group: Forum Members Posts: 38, Visits: 300	+x MarkMK - 7/12/2020 5:25:10 PM 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 overnight if needs be and it'll still adhere well to the epoxy. It's doesn't apply very well with a brush, but rolling it might give better results. Spraying is usually the best method of application as it's quite thinly formulated, so it might not adhere too well to mould sides if applying by hand Thank you. I'm not equipped to spray right now. If I roll, how long do I wait between applications? Alan
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MarkMK	MarkMK posted 5 Years Ago HOT Post Details
Group: Forum Members Posts: 338, Visits: 2K	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 applied, it can be left up to 24hrs and still bond okay to the epoxy. I have, on very rare occasions, left it a little longer and things appeared to be alright. Ideally, though, it is usually ready to go after a couple of hours at reasonable ambient temperatures.
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ahender	a ahender posted 5 Years Ago HOT Post Details
a Group: Forum Members Posts: 38, Visits: 300	+x MarkMK - 7/13/2020 7:56:10 AM 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 applied, it can be left up to 24hrs and still bond okay to the epoxy. I have, on very rare occasions, left it a little longer and things appeared to be alright. Ideally, though, it is usually ready to go after a couple of hours at reasonable ambient temperatures. 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 the gel coat.
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