Fin box Resin wont cure. HELP PLEASE

For those of you familiar with epoxy resin, I ask for your assistance please. I routed out the holes for the fins, and mixed my epoxy and hardener (2 to 1), which is normal, added the additive f, and began to pour, one day later, the epoxy is still goopy, not fully cured. Where did I go wrong? Any suggestions on what to do to fix the problem? Thanks in advance for the responses.

Anthony

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For those of you familiar with epoxy resin, I ask for your assistance please. I routed out the holes for the fins, and mixed my epoxy and hardener (2 to 1), which is normal, added the additive f, and began to pour, one day later, the epoxy is still goopy, not fully cured. Where did I go wrong? Any suggestions on what to do to fix the problem? Thanks in advance for the responses.

Anthony

Where you went wrong is not clear.

Pull it out and start over.

I used to screw it up by not mixing well enough, usually because the epoxy was too cold (too viscous to mix well), and/or screwing up the ratios. I started dumping the epoxy bottle into a bucket of hot tap water to warm it up and make it less viscous before mixing. Other than that, just make sure the ratios are dead on and avoid acetone.

Pull it out, clean all surfaces with alcohol, and try again. It should be no problem.

Also, acetone interferes with the curing process. You should not use acetone with epoxy - AT ALL. Use denatured alcohol to clean surfaces, and then use epoxy AFTER the alcohol has evaporated.

Good luck, it could be worse, it coulda been a lam…

You didn’t mix 2 to 1.

In such small quantities it’s easy to F-it up. Next time mix up a bigger batch, and do it by weight…get a scale. Usually the problem is kicking it off too fast, too hot.

In my shop they tell me to mix by weight, what is really important when mixing epoxy. Because the increase of volume/temperature is different in the two components!

They also tell me to mix at least 50grams, you can mix less but then you have to be super accurate!

I never had any mixing problem and I never mixed less than 50 grams. But sometimes you don’t need the whole 50 grams, try to have another project running then like fins, … . Or you have to throw away the excess.

Thanks guys. I think I messed up the ratio. Last night after I posted, I was irritated so I went out and pulled the boxes out and remixed and repoured. Obviously the second time is a charm, just checked and it is nice and hard! Thanks for the responses, I need to be super careful about mixing from here on out.

Anthony