How to keep sandpaper from getting gunked up
Eric Phillips
uvel...@uxa.ecn.bgu.edu (Vicki Elberfeld) wrote:
>I've been removing some old polyurethane from some wood by sanding it,
>and the sandpaper quickly gets gunked up with the old finish. Are there
>any tricks to preventing this?
Yes...use a cabinet scraper instead.
>Also, do the kind of hand sanders that
>have a vacuum to suck up the dust clog up less easily?
No, particularly not with PolyU.
..eric
Vicki Elberfeld
I've been removing some old polyurethane from some wood by sanding it,
and the sandpaper quickly gets gunked up with the old finish. Are there
- Tom
gshell
uvel...@uxa.ecn.bgu.edu (Vicki Elberfeld) wrote:
I don't know of any way to keep 'em from gunking up, but you do know
about the sandpaper cleaner sticks don't you? They look like giant
gum erasers and will take that gunk right out of the sandpaper. I
used to think that once the paper was gunked up it had to be pitched.
Not any more!
Gary Shell
Gary Reynolds
Vicki Elberfeld wrote:
>
> I've been removing some old polyurethane from some wood by sanding it,
> and the sandpaper quickly gets gunked up with the old finish. Are there
> any tricks to preventing this? Also, do the kind of hand sanders that
> have a vacuum to suck up the dust clog up less easily?
>
gumming. "Wet sanding" will keep the paper from clogging but this is reserved for the
finishing process. There are chemical removers that are supposed to be safe that remove
finishes much better than sanding. Some of them are slow to work on polyurethane,
however. If its really difficult to remove, you can always scrape it off. Often times,
thats about the only way to remove some urethanes, which is a pitch for not using them
in the first place, but that's another story. Good luck. Gary
--
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Donald Weisman
In article <4vjrkk$a...@news.ecn.bgu.edu>, uvel...@uxa.ecn.bgu.edu (Vicki
Elberfeld) wrote:
>I've been removing some old polyurethane from some wood by sanding it,
>and the sandpaper quickly gets gunked up with the old finish. Are there
>any tricks to preventing this? Also, do the kind of hand sanders that
>have a vacuum to suck up the dust clog up less easily?
>
>- Tom
Tom,
Sanding creates heat. Heat softens any finish, and makes it impractical to
remove by sanding. The practical method to remove finish is with a
chemical stripper or refinisher.
--
Don Weisman
Abacus Furniture Repair
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John DeLapp
uvel...@uxa.ecn.bgu.edu (Vicki Elberfeld) wrote:
>I've been removing some old polyurethane from some wood by sanding it,
>and the sandpaper quickly gets gunked up with the old finish. Are there
>any tricks to preventing this? Also, do the kind of hand sanders that
>have a vacuum to suck up the dust clog up less easily?
If you keep a container of baby powder and frequently sprinkle it on the surface your sandpaper won't clog.
John DeLapp
Kevin Miller
In article <4vjrkk$a...@news.ecn.bgu.edu>, uvel...@uxa.ecn.bgu.edu says...
>
>I've been removing some old polyurethane from some wood by sanding it,
>and the sandpaper quickly gets gunked up with the old finish. Are there
>any tricks to preventing this? Also, do the kind of hand sanders that
>have a vacuum to suck up the dust clog up less easily?
>
If you're using a power sander you can get a gum rubber block from most ww
catalogs that you hold against the moving sandpaper. I use one all the time
and it works pretty well. It has lasted a LOT longer than I ever expected.
I guess it could be used for hand held paper too. See if you can find some
"open coat" paper. If memory serves, it won't clog as readily. Open coat
refers to the type of paper - not a brand name.
You might try a scraper too, tho it's a lot of work...
...Kevin
ANNE B. WATSON
In a previous article, uvel...@uxa.ecn.bgu.edu (Vicki Elberfeld) says:
>I've been removing some old polyurethane from some wood by sanding it,
>and the sandpaper quickly gets gunked up with the old finish. Are there
>any tricks to preventing this? Also, do the kind of hand sanders that
>have a vacuum to suck up the dust clog up less easily?
>
Tom, switch to a scraper- a little piece of steel, about 3 by 4 inches.
Sandvich(sp) is one of the brand names. Lots cheaper and lots faster.
It is used 2 handed and either pushed or pulled. There is lots of
discussion about sharpening them,but for that sort of job I just stick
it in a vise, file the edge at 45 degrees, and then burnish it by
using the end of the file nearest the handle held at about 12 degrees.
This puts a little burr on the 45 degree .
Once you have used one, you will never go back to trying to sand off
a finish.
Anne
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Steve Baker
uvel...@uxa.ecn.bgu.edu (Vicki Elberfeld) wrote:
>I've been removing some old polyurethane from some wood by sanding it,
>and the sandpaper quickly gets gunked up with the old finish. Are there
>any tricks to preventing this? Also, do the kind of hand sanders that
>have a vacuum to suck up the dust clog up less easily?
I give my belt sander belts a good dose of silicone spray, and it
seems to me that this helps prevent clogging a bit. Please note that
there are "silicone sprays" and there are "silicone sprays". Some of
them smell like kerosene and are really ugly, and mostly useless. I
like the Krylon product, and I also routinely give my TS table a
little squirt from time to time. I've never noticed a problem with
finishes, although I mostly use latex paint; but I do stain from time
to time :-)
Steve Baker