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Using Orbital palm sander to remove a finish from Oak - is what i am doing ok?

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Forum topic by Prizen posted 02-02-2017 09:58 PM 471 views 0 times favorited 6 replies Add to Favorites Watch
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Prizen

31 posts in 1920 days


02-02-2017 09:58 PM

hey all

back to the workshop after a long break! I have forgotten everything however!

What I have is a set of oak chairs and a rectangular oak kitchen tablewhich both have a dark stain on them. Id like to refinish them with a new stain and poly top coat.

I started off handsanding with 120 grit, which was taking a long time. I have an old orbital palm sander and would like to use it to speed up the process.

Of course while I was hand sanding, I was doing so with the direction of the grain. If the orbital sander does not do that, will I run into problems with scrathes? The other thing I am worried about with the electric sander is accidentally rounding off the 90 degree edges on the chair legs etc.

Thanks


6 replies so far

View bbc557ci's profile

bbc557ci

595 posts in 2074 days


#1 posted 02-02-2017 10:18 PM

If there’s a clear coat like poly or whatever, I’d use a stripper, then have at it with the orbital. With an orbital you can work your way up in grits, and there shouldn’t be any “scratches”. And I wouldn’t worry about rounding over the 90* angles, just keep the sander flat and on plane…should be fine if your careful.

-- Bill, central NY...no where near the "big apple"

View Lazyman's profile

Lazyman

1965 posts in 1387 days


#2 posted 02-02-2017 10:29 PM

Make sure that the table is not veneered before you go at it too aggressively with the sander. If the underside is a different type of wood than the top or the grain pattern is significantly different, you can bet that the veneer on the top is very thin so won’t take much power sanding. Another telltale sign is if the top looks like it is one continuous piece—not multiple boards to make up the width. That might be obvious to you but since you said you have forgotten everything, I thought I would point out the obvious. ;-)

-- Nathan, TX -- Hire the lazy man. He may not do as much work but that's because he will find a better way.

View mrbob's profile

mrbob

182 posts in 569 days


#3 posted 02-02-2017 10:42 PM

After using a ROS I always hand sand with the last grit I used on the ROS, with the grain.

View ArtMann's profile

ArtMann

942 posts in 816 days


#4 posted 02-03-2017 03:32 PM

I recently refinished a hardwood table top of unknown species. Stripper was too messy for me because I was only doing the top and didn’t want to risk damaging the rest of the table. I started with 80 grit on a random orbital sander and quickly removed all the old finish. I graduated to 120, 150 and finally 180 grit paper. It turned out very well.

View Bill White's profile

Bill White

4932 posts in 3960 days


#5 posted 02-03-2017 03:35 PM

And…......don’t press down on the sander. Let the machine do the work.
Bill

-- bill@magraphics.us

View Prizen's profile

Prizen

31 posts in 1920 days


#6 posted 02-03-2017 06:36 PM

Thanks guys, really appreciate the advice.

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