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jacki2015
polyurethane finishing
jacki2015

No matter what technique I use, brush or dunking in a small vat, I can't get away from streaks with a brush or tiny bubbles when I dunk it in a vat. Its a wood shelf I'm working on. Even tried pouring the polyurethane over the wood slowly so as not to create bubbles, but still no good. I'm trying to get a glass-type finish, so I know I need several thick coats. What am I doing wrong? Thanks

A. Spruce
Re: polyurethane finishing
A. Spruce

The brand of poly you are using will make all the difference, Minwax is just about the worst thing to work with, while McCloskies and General brands are very nice.

Instead of a brushed poly, you may want to consider a sprayed lacquer. Rattle can finishes these days are pretty good, best of all, no brush marks to worry about, even though both McCloskies and General both have great self leveling properties.

Jack
Re: polyurethane finishing
Jack

One thing is never mix the poly. I prefer OldMasters poly, it is one of the best self leveling finishes I have ever used.

Jack

ed21
Re: polyurethane finishing
ed21

Many thin (or not so thick) coats are better.
Stir gently if semi gloss or matt finish to distribute the solids. Never shake.
Use a good quality natural brush.
Dip brush gently and touch the side of can to get rid of excess. Don't scr-ape on rim.
Apply finish gently and move on. The idea is to move on before the finish sets up to give the finish time to self level and bubbles to dissipate.
Temperature should be moderate, not too warm.
As mentioned, different poly's are better than others.

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