laquer finishing - Woodworking Talk

dninterior · 05-14-2009, 08:01 AM

I'm working in the furniture factory. My company have just been order some furniture finishing like glass. But I don't know how to paint them. Please tell me how i do. Thanks very much.

Just Bill · 05-14-2009, 08:27 AM

Lacquer dries too fast for anything but spraying. Any other method requires a lot of sanding between coats. If that is what you are asking.

dninterior · 05-14-2009, 08:32 AM

thanks for your answer. I want to know i could use which kind of PU, and how i do for them look like glass. I use MDF.

cabinetman · 05-14-2009, 09:18 AM

WELCOME TO THE FORUM

If you use a substrate that has a porous grain it would have to be filled with a "grain filler", or also called "paste wood filler", not to be confused with a wood putty.

Sufficient coats of lacquer would have to be applied to get a build that can be sanded without reaching the substrate. Use wet-or-dry (gray, or green) sandpaper (silicon carbide), with water and on subsequent coats block sand with 220x-320x. On about the 3rd or 4th coat, go to 400x-600x. Do this progressively until the finish is flat. Your very last coat sand to 1200x-2000x. Then use a smooth pumice and then rottenstone to bring up the gloss. You can also use automotive rubbing and polishing compounds to get that "glass" look.

dninterior · 05-15-2009, 12:25 PM

Quote:

Originally Posted by cabinetman

WELCOME TO THE FORUM

If you use a substrate that has a porous grain it would have to be filled with a "grain filler", or also called "paste wood filler", not to be confused with a wood putty.

Sufficient coats of lacquer would have to be applied to get a build that can be sanded without reaching the substrate. Use wet-or-dry (gray, or green) sandpaper (silicon carbide), with water and on subsequent coats block sand with 220x-320x. On about the 3rd or 4th coat, go to 400x-600x. Do this progressively until the finish is flat. Your very last coat sand to 1200x-2000x. Then use a smooth pumice and then rottenstone to bring up the gloss. You can also use automotive rubbing and polishing compounds to get that "glass" look.

I did as you told but i was not successful. could you tell me step to step to finish it?

cabinetman · 05-15-2009, 09:43 PM

I don't think I could get more step to step than what I already said. If you were unsuccessful, here's what might be the problem.

You didn't apply enough coats allowing each coat to cure.

Water has to be used with the wet-or-dry silicon carbide paper.

The last coat was likely not cured when sanded.

Other than those things I would need to know what went wrong.

dninterior · 05-18-2009, 07:30 AM

Quote:

Originally Posted by cabinetman

I don't think I could get more step to step than what I already said. If you were unsuccessful, here's what might be the problem.

You didn't apply enough coats allowing each coat to cure.

Water has to be used with the wet-or-dry silicon carbide paper.

The last coat was likely not cured when sanded.

Other than those things I would need to know what went wrong.

thanks for your answer. I will check it.

vcooney · 05-21-2009, 06:25 AM

How about epoxy, one coat of epoxy is like 60 coats of lacquer

dninterior · 05-22-2009, 07:03 AM

Quote:

Originally Posted by vcooney

How about epoxy, one coat of epoxy is like 60 coats of lacquer

Could you tell me ingredient of epoxy? I don't know it.

Jordy3738 · 05-23-2009, 02:31 AM

It sounds like a few years of furniture finishing experience would solve this one. I can't say that I have it to give.

I have always taken my finish work that needed to be of high quality to a high quality top of the line finish person.

That would be my recommendation.

vcooney · 05-23-2009, 05:27 PM

Check this site out, this is the stuff I use and it looks like glass with one coat. Parks super glaze.
http://www.newparks.com/parksclear-pg.htmlarks

Vince

KevinG · 05-26-2009, 08:44 PM

If you are in the "industry", the best thing to do is to contact the vendor that sells that lacquer you are using and get their recommendations and input. I ran a finishing department from a company that supplied the BORG with kitchen cabinets and we had an inhouse rep from the coating company onsite. Any questions or problems went right to him to do the leg work on.

Lots of ways to get that kind of finish, depending on what coating you're using and what techniques you have at your disposal. You need a high build, high gloss coating to do it right. Too many coats of a thin coating will blur the grain underneath. Like looking into a deep pond at the fish.