English Deutsch Français Italiano Español Português 繁體中文 Bahasa Indonesia Tiếng Việt ภาษาไทย
All categories

coat of polyurethane with a brush after staining it. are two coats of polyurethane necessary or does it not matter that much in this case?

2006-11-06 02:05:59 · 11 answers · asked by Mark 1 in Home & Garden Do It Yourself (DIY)

11 answers

A valid Q but totally your choice.

First of all depending on the absorbency of the stained wood, the Poly may in fact also be absorbed in areas where the grain or natural sealants of raw wood may still exist. That might create variations in sheen, initially? If the stain was a VARNISH type, then that may be a moot point.

The Poly is pretty obviously a form of sheen and protection, and the more you apply the greater the level of that.

No offense to any other answers by the way.

The process, no matter the form of application, will produce air bubbles, even "minute" ones. The process after drying is NOT sandpaper, but a fine steel wool, gently abrasing out those bubbles/voids,,, then applying another or three or more, or less, coats of poly. After "wooling" use a "tack Cloth" to take up residue, clean the surface in any and all ways possible, re-apply poly, after the surface is dry, clean, and free of intrusions from floating dust or breezes, and allow that to dry/cure, then check the results.

You can apply as many or as few coats as will suit you. Brushing with a decent brush and new poly, should allow any strokes to "Flow out" and spraying poly will still take the same after efforts but will be a thinner coat in the end result.

Rev. Steven

2006-11-06 03:25:46 · answer #1 · answered by DIY Doc 7 · 2 0

I recommend putting on at least 3 thin coats (and possibly more). You didn't say what kind of polyurethane you're using but if it's oil based, then use a good natural bristle brush and apply in one direction. Don't brush it on like it's paint or you will create bubbles in the urethane. Let the first coat dry for about 8 hours and then go over it lightly with either 220 grit sandpaper or 0000 steel wool. Make sure you use a tack cloth after sanding to pick up any dust left behind. Then repeat the procedure for successive coats. For the best finish, again I recommend at least 3 coats. Good luck!

2006-11-08 03:14:06 · answer #2 · answered by joem_1701 3 · 0 0

Coats Of Polyurethane

2016-12-12 03:25:59 · answer #3 · answered by ? 4 · 0 0

I usually use 3 coats of polyurethan on furniture and cabinetry I stain. Sand with very fine (220) between coats...just lightly to make urethane adhere. You will see a marked difference in the finish when the third coat dries. Too much of the first coat is absorbed into the wood and doesn't give it depth.

2006-11-07 01:57:27 · answer #4 · answered by Duke D 3 · 0 0

I also agree with Steven. The more effort you put into sanding with the steel wool, ensuring that all of the bubbles are out, the more beautiful your end result will be as well. After your final coat of polyurethane (I usually use four coats), if you are still experiencing bubbles, lightly sand again with steel wool and apply Johnson's paste wax and buff when dry. It gives a beautiful, smooth finishing touch.

2006-11-07 00:27:09 · answer #5 · answered by mom of five 2 · 0 0

Yes, you definitely need more than one coat in this application. In a matter of weeks, the first coat will start looking bad. A minimum of three thin coats is necessary. Don't try to make the coats too heavy or they will get milky. Pain now, gain later. Trust me. You have the stuff handy now anyway, right?

2006-11-06 02:56:56 · answer #6 · answered by claywlong 2 · 1 0

The number of coats depends on the density of the wood and your personal preferences on the finish. In most wood:
1st coat seals the deep grain.
2nd coat continues filling the grain and completes the seal
3rd coat brings the polyurethane to the surface. The wood still has grain but appears a bit shiney.
4th coat is a plastic shiney glassy layer on top of the wood

2006-11-08 19:28:32 · answer #7 · answered by James H 3 · 1 0

it is best to use two coats after the first coat you should use a 4 zero steel wool and go over the first coat to get any bubbles or lines out then with a good brush add the last coat

2006-11-06 05:39:03 · answer #8 · answered by lookingforanswe 1 · 0 0

If you have to find nice ideas for woodworking i can suggest you to check here http://woodworking.toptips.org
It's perfect if you are just starting out or if you're a seasoned carpenter. you will like it for sure !
It has almost 20.000 woodworking plans and you have a CAD/DWG software to view and edit the plans. You have step-by-step instructions with photos and high quality blueprints and schematics. If you are a beginner this is the easiest way to start your woodworking projects, and if you already have experience you can anyway find a lot of interesting ideas!

2014-09-26 04:26:38 · answer #9 · answered by Anonymous · 0 0

Usually the can of stain will say whether or not two coats are necessary. Did you check the info? If it looks fine the way it is, you probably don't need two coats. If it looks like it could be better throw another coat on.

2006-11-06 02:09:52 · answer #10 · answered by Monstblitz 4 · 0 2

fedest.com, questions and answers