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Forum topic by WEASEL posted 11-08-2010 01:16 AM 1047 views 0 times favorited 6 replies Add to Favorites Watch
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12 posts in 3606 days

11-08-2010 01:16 AM

Can you thin down a oil base poly?

-- WEASEL, Anthem AZ

6 replies so far

View Scott Bryan's profile

Scott Bryan

27250 posts in 4362 days

#1 posted 11-08-2010 01:26 AM

Absolutely. Just use any compatible solvent such as mineral spirits. Manufacturers put the statement on the container due to legal implications if their product exceeds allowable voc regulations.

I generally make a wipe on poly by cutting it 50:50 with mineral spirits. You can buy commercial wipe on products but end up paying a premium price for essentially mineral spirits.

-- Challenges are what make life interesting; overcoming them is what makes life meaningful- Joshua Marine

View nailbanger2's profile


1041 posts in 3684 days

#2 posted 11-08-2010 01:27 AM

Absolutely. Cut it 50/50 with mineral spirits and wipe it on. It’ll take more coats, however.

-- Wish I were Norm's Nephew

View grizzman's profile


7836 posts in 3844 days

#3 posted 11-08-2010 01:27 AM

paint thinner…ive used it before…im no expert, maybe other will chime in who know other things , but its worked for me…

-- GRIZZMAN ...[''''']

View woodgu's profile


63 posts in 3315 days

#4 posted 11-11-2010 01:32 AM

Weasel, I agree with the other folks. I am finishing a project right now. I always start with cutting the poly 50/50 with mineral spirits.

-- Phil G

View dbray45's profile


3320 posts in 3317 days

#5 posted 11-12-2010 05:54 PM

I also add pure tung oil.

-- David in Damascus, MD

View Gregn's profile


1642 posts in 3524 days

#6 posted 11-12-2010 06:10 PM

I contacted Minwax a few years ago to find out about thinning for spraying, and what they said was. That they don’t recommend thinning their product, but then said that I could thin by 15%. Since then I have been doing what others have done by thinning by 50% for wipe on finish.

-- I don't make mistakes, I have great learning lessons, Greg

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