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Main Boards => The Bowyer's Bench => Topic started by: Mad Max on July 25, 2019, 04:08:12 PM

Title: ????????? Smooth-on epoxy going bad???????
Post by: Mad Max on July 25, 2019, 04:08:12 PM

what does smooth-on look like when it's going bad???

mine is close to 2 years old but looks the same

Title: Re: ????????? Smooth-on epoxy going bad???????
Post by: Flem on July 25, 2019, 06:52:36 PM

Part B gets quite a bit darker and smells caustic!
I own and use many different Smooth-On epoxy's in addition to EA-40 and have noticed that it's only the slow setting/long open time hardeners that go bad.

Title: Re: ????????? Smooth-on epoxy going bad???????
Post by: Mad Max on July 25, 2019, 07:45:00 PM

I thought it smelled strong
Part B is which one flem?
yellow or blue can?

Title: Re: ????????? Smooth-on epoxy going bad???????
Post by: Flem on July 25, 2019, 07:50:08 PM

Blue

Title: Re: ????????? Smooth-on epoxy going bad???????
Post by: Mad Max on July 25, 2019, 10:19:09 PM

Quote from: Flem on July 25, 2019, 07:50:08 PM

Blue

Thanks

Title: Re: ????????? Smooth-on epoxy going bad???????
Post by: Forwardhandle on July 26, 2019, 04:46:32 AM

I wondered about that to but If mine starts to smell, I mark the cans shop only & get fresh EA-40 maybe Im over cautious but if I have a failure I  know its not the Epoxy for the most part, its cheap Insurance ,I try only order what Im going to use in a 6 month period ! I wonder if you keeped it in the fridge if it would last longer ?

Title: Re: ????????? Smooth-on epoxy going bad???????
Post by: Crooked Stic on July 26, 2019, 08:24:17 AM

I have used the smelly hardener with no problems. two years old and been opened I might not trust it.

Title: Re: ????????? Smooth-on epoxy going bad???????
Post by: Flem on July 26, 2019, 11:30:46 AM

I concur with Stic, I use smelly hardener without issue. But I don't worry about the age. if it stinks, I leave the can open and if the smell dissipates in an hour or so, I use it. If it keeps off gassing or it looks like the consistency has changed, its trash.

Title: Re: ????????? Smooth-on epoxy going bad???????
Post by: Bob T. on July 26, 2019, 12:33:36 PM

How about 4yr. old, but never opened

Title: Re: ????????? Smooth-on epoxy going bad???????
Post by: Flem on July 26, 2019, 12:46:22 PM

Quote from: Bob T. on July 26, 2019, 12:33:36 PM

How about 4yr. old, but never opened

Only one way to find out!
If your squeamish, sent it. I'll let you know :goldtooth:

Title: Re: ????????? Smooth-on epoxy going bad???????
Post by: Bob T. on July 26, 2019, 01:28:06 PM

Your right Flem, Only one way to find out! Thanks for the offer.   :biglaugh: I'll take a pass on sending it.

Title: Re: ????????? Smooth-on epoxy going bad???????
Post by: hunting badger on July 27, 2019, 03:04:28 PM

I've used very old smooth on and never had a problem(knock on wood) the stuff is amazing! I wouldn't be afraid to use it. I only build bow for myself, family or friends though, If I was selling bows I might get new.