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post #1 of 6 (permalink) Old 08-25-2016, 01:34 PM Thread Starter
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Default Sandpaper

Sandpaper has become a bigger portion of my budget. Also sandpaper in my shop had become a disorganized mess. After already deciding on my method of organization ( 4 1/2" roll sandpaper) and investing in an assortment I decided to check if I had made an economical decision.

Online searches showed that there are several quality manufacturers (Norton and 3M were judged comparable. and a few others) I chose Mirka as my brand. I've been using their 5" ROS discs and liked their quality and price at Online Industrial Supply Corporation - Sandpaper, Sanding Supplies, Abrasives, Sanding Discs, Sanding Belts, Sanding Sheets, Sanding Rolls . When I stocked my 4 1/2" cabinet I chose Mirka rolls. The projects I have been doing have required a good deal of hand sanding. Since I had 3M 10X on hand I decided to check their performance against each other.

Using 80 and 120 grit (no 220 3M on hand) of each I offer the following opinions

Backing 3M is tougher.With hand sanding I fold and unfold the paper. 3M never tore with my use. The Mirka never tore but frayed backing began showing
Flexibility both papers shaped easily to various contours
Durability 80g 3M wins 120 Mirka seemed to outlast and I found this curious
Price 3M 15 sheets for 12.97 USD at Home Depot, Mirka 4 1/2" X 10 yds 21.95 USD which I thinks equals 1.34 a sheet 3M wins
Convenience I hate cutting 3M into quarter sheets. Its tough stuff.

Conclusion 3M 10X is a good value and seems to be the best economical choice but I prefer rolls
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post #2 of 6 (permalink) Old 08-25-2016, 01:43 PM
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Thats a good road test.
this one is best but i dont like it.
(lol)
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post #3 of 6 (permalink) Old 08-25-2016, 04:03 PM
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thanks for posting your findings...

This would have been the week that I'd have finished chewing thru the restraints...
If only new layers hadn't been added....

Stick....
Forget the primal scream, just ROAR!!!
"SNORK Mountain Congressional Library and Taxidermy”
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post #4 of 6 (permalink) Old 08-25-2016, 05:08 PM
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I recall reading that it was overkill to sand beyond about 180 grit because finer ground particles into the wood grain, where it puffed up and ruined the final finish. When I can, I prefer a scraper or even a hand planed finish. I'm dreaming of a # 4 1/2 hand plane for Christmas.

The more I do, the less I accomplish.
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post #5 of 6 (permalink) Old 08-25-2016, 06:47 PM
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Bill I also buy from OLIS.

Don in Murfreesboro,Tn.

Measure once cut twice and it's still to short.
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post #6 of 6 (permalink) Old 08-26-2016, 06:58 AM Thread Starter
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Quote:
Originally Posted by sunnybob View Post
Thats a good road test.
this one is best but i dont like it.
(lol)
at least you know its an honest reviw

Learning is an exciting adventure
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