Epoxy question

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jheger
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Epoxy question

Post by jheger »

Just finished butting my bottom panels with wood flour. Used the slow curing hardner. The weather here is about 60 degrees and is raining a little so humidity is high. Question, when do you know when the epoxy has cured enough so you can go to the next step and apply the cloth?
Thanks
jem
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Post by jem »

Do a thumb-nail scratch test. If you can scratch it, wait a little longer.

With slow cure and your weather conditions, I'd 24 hours is the most you should have to wait.
-Matt. Designer.
danh
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Post by danh »

Another tell tale sign of an incomplete cure is when you see little balls forming instead of dust when you start to sand.

I built a Glen-L boat last winter in New England and I had plenty of practice working with epoxy through the cold winter. 60 degrees + slow hardener may take a little more than 24 hours to cure. Be patient. It will cure.

Good luck,
Dan
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Slow Epoxy - cool temps

Post by Mullet_Key »

James, you can speed up the curing process by adding some heat to your work area. Also, be careful sanding "Just cured" epoxy. It can cause a bad rash when you think it's benign. Ca
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