tacky epoxy

[rocketgroupmike]

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]

Hit them lightly with a heat gun or hair dryer.

 

[sandman]

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]

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]

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]

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