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Forum topic by Xoda posted 04-28-2017 12:55 AM 340 views 0 times favorited 5 replies Add to Favorites Watch
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Xoda

6 posts in 252 days


04-28-2017 12:55 AM

This time i am finishing. I have stained and sanded and i am ready for polyurethane. I choose a minwax satin poly brush and spray can. I purchased both to experiment with.
I have used the spray can on a few of the drawers i have made for the garage and want to try the brush version now. This question will show you that i am. When i brush on polyurethane does the surface i am applying the poly need to be horizontal or can all side be paint in vertical surfaces as well?

Thanks for all the replies to my last post. I understand now how to figure out how to make a hexagon. I knew what i was thinking could not be correct needing to make a 60 degree cut. I was trying to divide by 360 not 180. Once i was able to visualize the final product it became clear. The angle i wanted was 60 degrees not the individual angle of each side. The two 30 degree cut = 60.


5 replies so far

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papadan

3584 posts in 3209 days


#1 posted 04-28-2017 01:43 AM

If you don’t try to brush the poly on too thick you can do it in any direction you want. You can also apply it with a rag instead of a brush.

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Rick_M

10646 posts in 2220 days


#2 posted 04-28-2017 02:33 AM

Papa is right but horizontal makes it simpler. Brushed finishes are meant to “flow out” so you don’t see the brush strokes.

-- http://thewoodknack.blogspot.com/

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Rich

1987 posts in 430 days


#3 posted 04-28-2017 04:33 AM

I like to use sample pieces of the wood I’m going to be applying the finish to, so I can see how it behaves. You could test horizontal versus vertical performance with a small board.

-- No matter how much you push the envelope, it'll still be stationery.

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JBrow

1276 posts in 760 days


#4 posted 04-28-2017 04:51 PM

Xoda,

Most of my projects require application of polyurethane in both the horizontal and vertical planes. I suppose I could take more time repositioning the project so that all applications are on the horizontal plane, but like has already been said, I find application in the vertical can be successfully done with a little care. Sometimes the wet polyurethane can sag. But a final single continuous brush stroke from one end to the other levels any sags.

My personal preference for applying polyurethane is with the foam brush. I can both push and pull the foam brush during application, it seems a little easier to control the amount of polyurethane transferred to the surface, and clean-up is as easy as allowing the polyurethane to harden in the brush and throwing it away.

I do find that excess finish builds at inside corners on both horizontal and vertical surfaces. This may be peculiar to the foam brush; not sure. In any event, I keep a clean paper towel of good quality at the ready to wipe off any polyurethane inside corner build-up. I also like to wipe the bottom surfaces (where finish is not being applied) to remove any drips or runs that can occur. It makes finishing those bottom surfaces easier after the project is re-positioned.

I have discovered that all foam brushes are not equal. Foam brushes from Lowe’s that are perhaps made from low density foam tear easily. The foam brushes sold at Menards, a local Midwest home center chain, sells high quality foam brushes. I have not tried any from Home Depot.

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Xoda

6 posts in 252 days


#5 posted 04-29-2017 01:04 AM

Thanks

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