tacky epoxy

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rocketgroupmike

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Help! My epoxy fin fillets are still tacky after 48 hours! I thought I mixed thoroughly, and the rest of my rocket is fine... Is there anything I can do?
 

loopy

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Hit them lightly with a heat gun or hair dryer.
 

sandman

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I have a goose neck lamp on my work bench. I direct the light within about a foot of whatever I'm trying to "cure".

Works especially well on Elmer's glue fillets.

sandman
 

Missileman

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I had the same problem and 2 weeks later after trying direct heat ect.. still tacky. I was told it would eventually dry.
I got impatient and mixed a small batch of thin epoxy with just a little extra hardener and put a thin layer over the fillet.
Worked like a charm.
 

rocketgroupmike

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Hmmm... I was thinking of applying a very thin layer of just hardener. Jim, when you sanded those fillets, did you sand deep enough to get down to the tacky epoxy? Thanks for all the replies!
 

Missileman

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Just on the ends to taper them. The rest of the fillet didn't need sanding.
 
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