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How do I remove a finish I messed up?

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Forum topic by David posted 03-26-2010 07:12 PM 979 views 0 times favorited 6 replies Add to Favorites Watch
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David

110 posts in 2810 days


03-26-2010 07:12 PM

I recently completed a box that i finished with a tung oil mixture (1/3 tung, 1/3 varnish and 1/3 thinner) that didn’t come out good at all. I believe i applied too much finish and didn’t wipe off properly. So, I need to remove the finish and start anew. I’ve sanded it quite a bit but can’t get all of it out in the corners. What would be the best way to remove the rest of the old finish?

Thank you fellow lumberjocks!

Regards,
David

-- dcutter


6 replies so far

View David Craig's profile

David Craig

2136 posts in 2571 days


#1 posted 03-26-2010 07:49 PM

In my humble opinion, finish removal is best accomplished through a card scraper. This helps prevent any issues with clogging sandpaper and scratching the project. For the corners and any profiled edges, you might want to look at those small foam profile sponges that help contour the sandpaper without rounding any edges. If you don’t have any of those, some sanding sponges might do the trick. They are available at most of your big box stores.

David

-- There is little that is simple when it comes to making a simple box.

View Thomas Keefe's profile

Thomas Keefe

131 posts in 2871 days


#2 posted 03-26-2010 08:08 PM

Here is a way to sand close into a corner:

Attach some sand paper with adhesive back to a fairly flexible putty knife. This will go right into a 90 degree
corner. The stiffness of the blade allows you to put some pressure behind the sandpaper so you get good
coverage.

Scraping in corners is difficult (for me).

Tom

View DaddyZ's profile

DaddyZ

2475 posts in 2503 days


#3 posted 03-26-2010 08:16 PM

I use a razorblade to scrape in fine corners.

I recently put a coat of tung oil on a project then used varnish. I didn’t let the oil dry completely & the oil & varnish created an ugly White pasty concoction. had to scrape it all away.

-- Pat - Worker of Wood, Collector of Tools, Father of one

View russv's profile

russv

262 posts in 2631 days


#4 posted 03-26-2010 10:36 PM

a multi blade scaper might help
one example
http://www.jamestowndistributors.com/userportal/show_product.do?pid=59&familyName=ProPrep+Scraper+Blades#

russv

-- yknotwood.com: where to go because you don't want no stinking plastic!

View David's profile

David

110 posts in 2810 days


#5 posted 03-26-2010 10:39 PM

yes – i have white pasty gunk too that is tough to sand off.

will try the scraper and razor blade technique.

thanks all!

-- dcutter

View Kent Shepherd's profile

Kent Shepherd

2717 posts in 2748 days


#6 posted 03-26-2010 11:11 PM

I have removed a lot of finish over the years using lacquer thinner with a brush, usually an old paint brush. Apply it liberally. The brush will help in the corners. A new finish like that should rinse clean fairly quickly. Light sanding should be all you need at that point.

The other methods will certainly work too.

-- http://shepherdtoolandsupply.com/

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