Question about poly

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Forum topic by jacob34 posted 10-25-2012 06:08 PM 718 views 0 times favorited 8 replies Add to Favorites Watch
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465 posts in 1731 days

10-25-2012 06:08 PM

I have a minwax poly stain mix and used it well over a year ago then closed it and put in away. I went to open it up and use it a week ago and it was solid. I need to know if I can fix that or if it is ruined. I have searched online but not finding anything, either most know how to keep it from happening or it is ruined I don’t know. My daughter love her to death but she pulled the label off a while back so if there is info on the label please let me know. It was not in a hot place and was closed tight so any help is appreciated.

-- so a bear and a rabbit are sitting on a log

8 replies so far

View Don W's profile

Don W

17971 posts in 2034 days

#1 posted 10-25-2012 06:19 PM

There is no fixing it. I’d also suggest keeping it away from your daughter.

I’ve had poly last a long time, much longer than a year, so id say it wasn’t air tight for some reason. It will also get hard quicker if there is only a little left in the can.

-- Master hand plane hoarder. -

View Earlextech's profile


1159 posts in 2157 days

#2 posted 10-25-2012 06:23 PM

Toss it.

-- Sam Hamory - The project is never finished until its "Finished"!

View Mosquito's profile


8137 posts in 1759 days

#3 posted 10-25-2012 06:23 PM

I second what Don said. If it’s solid, it’s basically cured, and you can’t reverse that. Maybe a small piece of saran/cling wrap under the lid when you put it away for long term storage would work better.

-- Mos - Twin Cities, MN - -

View Bill White's profile

Bill White

4457 posts in 3427 days

#4 posted 10-25-2012 06:46 PM

Junk. I started exhaling into the can just as I replaced the lid on all finishes. Remember that most of our air is a high nitrogen mix. Inert gas (nitrogen) helps prevent curing. Not a total prob solver, but sure helps.
Film wrap under the lid won’t keep the air from the finish. Placing the film ON the surface of the finish will help.
Think about what Bloxigen does.
I must add that I sure got some funny looks from my bride when she first saw me blowing into a paint can.


View lumberjoe's profile


2893 posts in 1715 days

#5 posted 10-25-2012 06:50 PM

A good tip I learned recently – if you are a welder, hit the can with some argon before you seal it up. If you are not a welder or do not have argon, fill the can with glass marbles to remove as much “space” as you can.


View Don W's profile

Don W

17971 posts in 2034 days

#6 posted 10-25-2012 06:55 PM

Aren’t glass marbles worth more than the poly these days :-)

-- Master hand plane hoarder. -

View lumberjoe's profile


2893 posts in 1715 days

#7 posted 10-25-2012 07:02 PM

They cost about as much as 1 quart of Arm-R-Seal, however they cost a lot less than the four 3/4 full cans of solid material I used to call Arm-r-Seal :)

If the volume of projects I finished was great enough where I could go through finish quickly, it wouldn’t be an issue. A quart of finish will last me a LONG time.


View Grandpa's profile


3256 posts in 2142 days

#8 posted 10-25-2012 09:52 PM

Glass marbles can also be recycled. They last until….well you lose your marbles.

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