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Using Cold to Remove Disc Sand Paper

#259337 by Lodgepole » Fri May 03, 2019 12:15 pm

In the past i have used heat to remove pressure sensitive sand paper from the Shopsmith sanding disc. This was really a pain and often i have had limited success. Then I came across this video: https://www.wwgoa.com/video/removing-pr ... er-009272/

I have left a disc in the refrigerator for 10 minutes (not enough) and 30 minutes (which worked out perfect). There is glue residue left, but I will try "Goof Off" later today to see if that works. I have read Acetone works well.

If anyone else any suggestions, please let me know.

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Re: Using Cold to Remove Disc Sand Paper

#259339 by WileyCoyote » Fri May 03, 2019 1:24 pm

Very interesting idea. That is the opposite of what has always been recommended.

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Re: Using Cold to Remove Disc Sand Paper

#259342 by Gene Howe » Fri May 03, 2019 2:58 pm

My wife would definitely object. Maybe in the chest freezer, though.

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Re: Using Cold to Remove Disc Sand Paper

#259344 by garys » Fri May 03, 2019 4:02 pm

I'd try putting it outside in Winter. It should take about 10 seconds out there if it needs 10 minutes in the refrigerator.

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Re: Using Cold to Remove Disc Sand Paper

#259362 by algale » Sat May 04, 2019 12:33 pm

Brilliant! I have a chest freezer that will work perfectly!

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Gale's Law: The bigger the woodworking project, the less the mistakes show in any photo taken far enough away to show the entire project!

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Re: Using Cold to Remove Disc Sand Paper

#259364 by reible » Sat May 04, 2019 1:23 pm

Interesting, I've got a couple that need changing so I will give it a go. Perhaps one heated and one cooled just so I can see and feel the difference.

One of the nice parts about having disks for each grit is that you don't have to try and swap sand paper, so I don't have to remove paper until the end of life and don't have to deal with trying to re-stick used sandpaper.

I'll post my results later, got a batch of pens in process so not sure if I will get to the sandpaper experiment today or not.

Ed

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{Knight of the Shopsmith} [Hero's don't wear capes, they wear dog tags]

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Re: Using Cold to Remove Disc Sand Paper

#259373 by reible » Sat May 04, 2019 5:44 pm

Cold test............. don't do this...........

OK it sounded good but the results are worse then I have ever had with heat and it is not even close.

This was a 100 grit shopsmith sanding disk:

cold test.jpg
cold test.jpg (246.54 KiB) Viewed 4376 times


This will be my only test for the day since I will now have to spend the rest of my time trying to clean this up.

Ed

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{Knight of the Shopsmith} [Hero's don't wear capes, they wear dog tags]

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Re: Using Cold to Remove Disc Sand Paper

#259374 by reible » Sat May 04, 2019 6:28 pm

40 minutes later I have a clean disk........

Ed

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{Knight of the Shopsmith} [Hero's don't wear capes, they wear dog tags]

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Re: Using Cold to Remove Disc Sand Paper

#259383 by Hobbyman2 » Sat May 04, 2019 10:10 pm

I would be concerned about thermal expansion and contraction around the arbor but thats just my .02 .
Last edited by Hobbyman2 on Sat May 04, 2019 10:20 pm, edited 1 time in total.

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Hobbyman2 Favorite Quote: "If a man does his best, what else is there?"
- General George S. Patton (1885-1945)

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Re: Using Cold to Remove Disc Sand Paper

#259386 by Hobbyman2 » Sat May 04, 2019 10:18 pm

I have never had a issue using a sharp putty knife and have probably changed more sanding disc then most could buy in a lifetime , way back when we had a 20 inch 220v disc sander for wood and a 24 inch 220v for magnesium and a 10 inch for steel ,to install a new pad we/I used adhesive, and a wooden roller to remove the air bubbles and then let it set over night . never used anything but a sharp putty knife and some denatured alcohol .it still works on our ss disc ,jmo things have changed .

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Hobbyman2 Favorite Quote: "If a man does his best, what else is there?"
- General George S. Patton (1885-1945)

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