Hello: What material is best for removeing oil poly? Mahogany table top, new, started with filler then shellac sealer then oil based poly. Such a mess I want to remove it all or mostly and start over.
Thanks, KDM
The Bill of Rights
December 15 1791
NRA Endowment Member
LEAA Life Member
CRPA Member
Replies
we use citristrip-environmentally friendly and effective...let it do it's thing, scrape off, wash with tsp substitute-let dry-sand ...back to square 1 duke-one.
available from leevalley.com
silver
A paint and varnish remover will soften the poly. It will speed the process if you scuff sand the poly with 80 grit paper so the stripper can get a better "bite."
Stripper that contains methylene chloride will work the fastest. Work in a well ventialted area. I have some info on stripping at this link that may be a help - http://www.refinishwizard.com/stripping.htm
Website
Thanks, all: I like the idea of scuff sanding to speed the process, I've also checked out that website.
KDMKenneth Duke Masters
The Bill of Rights
December 15 1791
NRA Endowment Member
LEAA Life Member
CRPA Member
Poly over dewaxed shellac only. Regular varnish will cover over waxed shellac.
A heat gun works best, in my experience. I do not have a commercial shop, and am working in my home so I do not want fumes or poisons hanging around. A heat gun softens the poly finish quickly and lets you scrape it off. It makes no stink and no gloopy mess.
You'll need a fairly stiff-bladed 3-4 inch spackling knife to scrape with. Don't try to use a scraper that you pull toward yourself. You need to work away from yourself with a heat gun. Wear leather gloves, and apply little pressure as you scrape.
The shellac will not all come off. When you get down to what looks like bare wood with the heat gun, there's still going to be some shellac down in the grain. Shellac is easy to sand, and that's what I do, but any good paint/varnish remover will lift most of the shellac out of the grain, and you will be back to bare wood with little mess. Almost. DO NOT use alcohol to soften and remove the shellac. It drives the stuff down into the grain and, on mahogany, you'll be sanding for the rest of your life.
A good Sunday morning to you...
Interesting...more than 1 way to skin a cat...
never would have tried a heat gun on pu but when you find something that works,you tend to stick to it...inclination, motivation, style is what I say...
Your inclined to do or try a certain way
This motovates you to get organized and do it
based on your style /mode operatis
I enjoy the forum because of the new perspectives...
in our experience/style a heat gun works best for multiple layers of old paint but we'll try on
poly next time.
cheers,
silver
I hope it works for you.I forgot to include in my message that you must be very careful not to gouge the wood when scraping. Poly is not as thick as paint, and so doesn't come up as obviously.Also, I made the mistake of trying to use the heat gun on a walnut burl veneer, and bubbled it up! Don't recommend you do that!I've never had a problem on solid wood, except getting in a hurry and gouging it.
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