????????? Smooth-on epoxy going bad???????

[Mad Max]

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

mine is close to 2 years old but looks the same

[Flem]

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.

[Mad Max]

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

[Flem]

Blue

[Mad Max]

Blue

Thanks

[Forwardhandle]

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 ?

[Crooked Stic]

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

[Flem]

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.

[Bob T.]

How about 4yr. old, but never opened

[Flem]

How about 4yr. old, but never opened

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

[Bob T.]

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

[hunting badger]

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.