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Wiping poly formula

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Forum topic by ric53 posted 09-12-2019 09:03 PM 252 views 1 time favorited 6 replies Add to Favorites Watch
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ric53

195 posts in 2034 days


09-12-2019 09:03 PM

Does anyone know the ratio of thinner to poly to produce a wiping poly similar to min wax’s? Also what is the preferred thinner? Naptha or Paint Thinner?

-- Ric, Mazomanie


6 replies so far

View MrUnix's profile

MrUnix

7484 posts in 2713 days


#1 posted 09-12-2019 09:17 PM

50/50 works great for me, and seems to be the general recommendation. Minwax is even thinner according to their data sheet (approx. 50-75%). Always used mineral spirits (paint thinner) and never had a problem.

Cheers,
Brad

-- Brad in FL - In Dog I trust... everything else is questionable

View Rich's profile

Rich

5001 posts in 1104 days


#2 posted 09-12-2019 09:21 PM

Yep, 50/50 is good. I always recommend products labeled paint thinner over mineral spirits since many of today’s mineral spirits have been stripped of some solvents to make it “green” and low odor.

View LittleShaver's profile

LittleShaver

589 posts in 1134 days


#3 posted 09-12-2019 09:22 PM

I always use MS at somewhere around 50/50. Just kind of eyeball the 50/50. It really not a critical ratio in my experience.

-- Sawdust Maker

View Gene Howe's profile

Gene Howe

11856 posts in 3943 days


#4 posted 09-12-2019 09:34 PM

I use Watco and poly. 50/50 to start with. Usually 3 applications. The poly is increased by 25% for each subsequent application. Final coat is straight poly, usually sprayed. My method takes 4-5 days. Each application is allowed to cure for 24 hours.

-- Gene 'The true soldier fights not because he hates what is in front of him, but because he loves what is behind him.' G. K. Chesterton

View rustfever's profile

rustfever

776 posts in 3825 days


#5 posted 09-12-2019 09:58 PM

I start with 50/50 [poly/MS] for the first wipe on coat. Second coat usually about 70/30. Third coat, if I have done any sanding, also 70/30. Final coal full strength poly using a brush. Again, if necessary, light sanding with 400 grit or finer.
In my hot/dry climate during the summer months, [Central Valley of California], each of the wipe on coat dries in just an hour or so. Therefore the first 4 coat only take me a day.
THEN and final coat wiping coat of 50/50 usually the next day.

Final step, polish with brown paper bag.
Love the results

-- Rustfever, Central California

View wildwoodbybrianjohns's profile

wildwoodbybrianjohns

342 posts in 62 days


#6 posted 09-12-2019 10:52 PM

50/50 is pretty much standard, as confirmed above, but I typically go thinner on 1st coat, like 70/30 MS/poly, then increase to 50/50. I think this first step helps absorption deeper into the wood. Some might argue???

Final step, polish with brown paper bag.
Love the results

- rustfever

This is a great tip. I do this also with shellac, which is my go to finish.

-- Wildwood by Brian Johns: It is wiser to find out, than to suppose (S. Clemens)

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