What applicator for polyurethane?

Apr 11, 2005 10 Replies

What should I use to apply polyurethane to some oak hollow core doors?



The original doors in the house were sprayed with lacquer. I talked to the painter who did them, and he isn't interested in spraying just five doors. He recommended water-borne poly as an alternative.



The last time I used poly, I used disposable foam brushes, but I have no idea if those are best or not.



Brian Elfert


Poly can be sprayed, foam brushed, and you can even get wipe-on poly u... It's a personal preference really. I mostly foam brush, but ensure a nice flat surface by sanding to begin with for best results with foam brushing and apply a couple of coats with a light sanding in between.

-- Regards,

Dean Bielanowski Editor, Online Tool Reviews

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How about a real paintbrush?

For the best finish, you just cant beat a quality brush.

What is the best way to clean a real brush after using it with waterborne poly?

Brian Elfert

Warm water. I use a bit of detergent and rinse, rinse, rinse. I seldom get WB on a brush, but when I do, I don't let it dry. It's tough to get dried WB out.

Dave

Brian Elfert wrote:

With the surface (of door) flat.

waterborne

Soap and water work fine for me.

On interior doors, brushing the first coat, lightly sanding it and then wiping with a rag dampened with the finish for two or three other coats seemes to do a good job.

This is how I laid down a lot of poly with a minimum of effort. It worked for me anyway.

During construction of our home last year I Minwax stained and polyurethaned approx 150 lineal feet of 6x12 beams, 250 lineal feet of

6x6 beams and at least a gazillion lineal feet of 1x4 and 1x6 trim (baseboard, door frame and windows) all in white pine.

I rolled every inch using smooth 4" and 6" rollers and then back brushed using a bristle brush to smooth and remove bubble craters. 1 coat of stain, 2 coats of satin (sanding between coats) and a final coat of of semi-gloss.

All the pine beams and trim combined with white oak floors really looks nice and homey with a "log cabin" feel.

regards; tlc...

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