Finish Cure Epoxy vs 30 Minute Slow Cure Epoxy

[Terry Heddin]

I ordered finish cure epoxy and got 30 minute slow cure. Can 30 minute slow cure be used for finishing? Will it cure hard like finish cure and work & sand OK?

 

[Howard Larson]

Yes, I thin with denatured alcohol to an almost water consistency and apply with a foam brush. The foam will begin to swell after a few minutes. You can also use some heat from a blow dryer or heat gun to thin and flow in an un-thinned application such as an engine bay. Practice on some scrap. Just my .02

 

[Mark Anderson]

Thinnng with solvents greatly reduces the strength of epoxy. Get the right product for the job.

 

[Howard Larson]

Would it greatly reduce the strength to the same or less than that of paint?

 

[Dave Gilles]

Ive wondered the same thing. I use 30 minute to seal but will be using finishing epoxy on my next build. either way you go you want to let it soak into the fibers for 10-15 minutes and wipe/scrape off all excess before it dries. the thinning with alcohol or acetone is to help it absorb and penetrate the wood fiber.

 

[Bill Gibson]

I've always used a thin, slow set laminating epoxy for sealing the hull inside and out.