Stripping peeling paint off of varnish

Old 04-14-14, 05:30 PM
Thread Starter
Join Date: May 2010
Location: USA
Posts: 13
Upvotes: 0
Received 0 Upvotes on 0 Posts
Stripping peeling paint off of varnish

i have been removing two layers of paint from all the trim and doors that is lightly adheared and peeling from varnish for a month now with a bosh hot air gun and have atleast another month to go. we have been using 60 grit with an orbital, vibrating and hand sander to cut down on the varnish gumming but of course it sill gums. we are basicly down to the wood and i don't want to sand anymore. if i paint heavy enough will it cover the sanding marks. all doors will be painted off the hinges.
Old 04-14-14, 07:51 PM
Banned. Rule And/Or Policy Violation
Join Date: Apr 2013
Location: USA
Posts: 3,860
Upvotes: 0
Received 1 Upvote on 1 Post
I would have been using a stripper like Peel Away and scrapping it off.
Paint does not fix flaws!
Old 04-15-14, 12:43 AM
Rickaroonie's Avatar
Join Date: Mar 2014
Location: Australia
Posts: 18
Upvotes: 0
Received 0 Upvotes on 0 Posts
Most likely the previous painter did not sand the varnish (more likely polyurathane) It would of needed a coat of general purpose oil base undercoat. That's why it's coming off. Sanding with 60 grit is just too abrasive. Joecaption has the right idea, paint stripper! Much easier and faster. Good luck Uhjohnson.

Old 04-15-14, 03:50 AM
Forum Topic Moderator
Join Date: Mar 2005
Location: USA - N.E.Tn
Posts: 45,239
Received 759 Upvotes on 664 Posts
Dependent on the age of the house and who originally finished the woodwork it could be varnish, poly or shellac. Polyurethane has the hardest finish of the three.

Is the varnish gumming up the sandpaper or is it the latex paint plugging up the sandpaper? As stated above - using a stripper will speed up the job. You'll still need to do some sanding but not as much.

Once you've removed all the failing paint, sand with 120 grit to remove most of the sanding scratches, sand again [150-180 grit] after you've primed the wood and between coats of enamel. That should eliminate all the sanding scratches and minimize [maybe eliminate] any brush marks.

Thread Tools
Search this Thread
Ask a Question
Question Title: