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poly and mineral spirits question

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Forum topic by SuperDave0002 posted 05-16-2013 12:15 PM 472 views 0 times favorited 3 replies Add to Favorites Watch
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SuperDave0002

136 posts in 1983 days


05-16-2013 12:15 PM

Topic tags/keywords: question

I use the gallon size cans of poly and was wondering…..say I mix up a quart or so of poly and maybe 20% spirits, and I have a little bit left over…....what are the drawbacks of pouring that little bit back into the gallon container of 100% poly?

-- David South FLorida http://ahunkahunkaburninlove.blogspot.com/


3 replies so far

View reedwood's profile

reedwood

891 posts in 1428 days


#1 posted 05-16-2013 12:38 PM

Good question. I’m varnishing my own cherry cabinets right now and always end up with a 1/4 cup in the sprayer.

If you’re using a paint filter and a viscosity checker thingy and, considering the paint thinner is constantly evaporating, I would think it shouldn’t matter unless it’s somehow poluted. Plus, I like to pour a little thinner on top of the can before storing to keep it from drying out.

Is 20% the right amount? sounds like a lot of thinner.

I was thinking it would be nice to thin the whole gallon but I would have to empty 20% of it and find a decent container. Just what I need – two cans to keep clean

Obviously, I’m a woodworker, not a pro finisher.

Good luck with your project.

-- Mark - I prefer the tumult of liberty to the quiet of servitude.

View NiteWalker's profile

NiteWalker

2710 posts in 1329 days


#2 posted 05-16-2013 03:01 PM

I’d not pour it back into the can; I’d pour it in its own container.
Then the next time you mix another batch of the 20% thinned poly, mix in the other batch from before.

The main reason not to add the mixed stuff back into the unmixed can is for consistency.

-- He who dies with the most tools... dies with the emptiest wallet.

View SuperDave0002's profile

SuperDave0002

136 posts in 1983 days


#3 posted 05-16-2013 03:56 PM

Thanks Nightwalker, good idea…....that will give me a use for all those old spaghetti jars that I have been saving.

-- David South FLorida http://ahunkahunkaburninlove.blogspot.com/

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