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Author Topic: scotchbrite pads  (Read 2782 times)

htotheizzo3561

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scotchbrite pads
« on: June 20, 2004, 04:59:21 AM »
I have a few of these, but I am confused on the grits.

Brown - 220-400
Burgundy - 400-600
Green - 600-800
Grey - 800-1000
I also have a dark grey one that is nastier than the brown.
Are these correct??
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charlest

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Re: scotchbrite pads
« Reply #1 on: June 20, 2004, 08:01:51 PM »
roughly:
burgundy - 320 grit
green - 600 grit
grey - 800 grit
blue - 1000 grit
white - 1200-1500 grit.
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stanski

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Re: scotchbrite pads
« Reply #2 on: June 20, 2004, 08:08:05 PM »
charlest i was thinking, where do you get your scotchbrites from? i was just wondering if you have ever run into any deals anywhere, because i can only find the blue, grey, and green ones at home depot.
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htotheizzo3561

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Re: scotchbrite pads
« Reply #3 on: June 20, 2004, 08:17:40 PM »
I never saw a blue or white one.  Is there a website where you can buy them or see them??
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charlest

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Re: scotchbrite pads
« Reply #4 on: June 20, 2004, 08:17:56 PM »
quote:
charlest i was thinking, where do you get your scotchbrites from? i was just wondering if you have ever run into any deals anywhere, because i can only find the blue, grey, and green ones at home depot.
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There are any number of sources for these pads. I get them from all over the place:
Home Depot, Lowe's, Walmart's, K-Mart's, Kar-Parts, Auto supply places, marine supply places (Love Jamestown Distributors: www.jamestowndistributors.com).

FYI I've just about given up on the white pads; can't get them to abrade the surface of a bowling ball without extreme manual pressure. I use 1200 or 1500 gri tsandpaper.

FYI#2: the maroon, green, blue, AND white from supermarkets are GREAT BECAUSE they come with a sponge attached to the back. Moisten the sponge and it makes a terrific backing to apply to a ball. Use the sponge when damp to apply polish. Get them from Costco or BJ's or Sam's Club and yo ucan get a bunch of them cheap.

A short while back I put in a stock of 20 of so of the blue+sponge. Great for kitchen sink: cleans everything and won't scratch anything.  It applies a 1000 grit (roughly) surface to a bowling ball.

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Brickguy221

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Re: scotchbrite pads
« Reply #5 on: June 21, 2004, 12:12:02 AM »
I agree with Charlest about the white pads. The only thing I have found that they are good for is to cut off a little piece and put it on my Moto-Rota and polish inside of thumb hole.

Another place you can buy scotchbrite pads is at Wild Octopus:

http://www.wildoctopusbowling.com/index.asp?PageAction=VIEWCATS&Category=286

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Brickguy221

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Re: scotchbrite pads
« Reply #6 on: June 28, 2004, 12:33:51 AM »
quote:
I finally found a suitable use for the white pads - when applying compound, or polish with grit - they don't 'wad' up like cloth or paper.
 


Hmmmmm, interesting. I'll have to try that on an old ball I no longer use and see what happens.

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charlest

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Re: scotchbrite pads
« Reply #7 on: June 28, 2004, 07:20:52 AM »
Here's the "official" chart I had put together. Until yesterday I didn't have access to my file system; PC went kaput.

7445 - White pad, called Light Duty Cleansing  - (1000) 1200-1500 grit
7448 - Light Grey, called Ultra Fine Hand      - (600-800) 800 grit.
6448 - Green (?), called Light Duty Hand Pad   - (600) 600 grit
7447 - Maroon pad, called General Purpose Hand - (320-400) 320 grit
6444 - Brown pad,  called Extra Duty Hand      - (280-320) 240 grit
7446 - Dark Grey pad, called Blending Pad        (180-220) 150 grit
7440 - Tan pad, called Heavy Duty Hand Pad     - (120-150) 60(?)
Green Scotch Brite is available EVERYWHERE. It's 600 grit.
Blue Scotch-Brite is considered to be about 1000 grit.
(The value inside the parentheses is directly from 3M.)

3M Chart
Less Aggressive  -------->  More Aggressive
7445 7448 6448 7447 6444 7446 7440
Finer Finish     -------->  Point Coarser Finish
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da Shiv

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Re: scotchbrite pads
« Reply #8 on: June 28, 2004, 09:19:52 AM »
Scotch-Brite posts are the best argument for the creation of a FAQ section on this site.  I have no problem with that--it's an important topic.  Thanks to charlest for maintaining that list and publishing it from time to time when the questions arise.  This list would probably deserve to be at the very top of an FAQ section.

I have just a few comments about my experience with Scotch-Brite pads.

The green ones are considered to be 600 grit, but I have the long-standing feeling that what I get from them is slightly rougher--possibly more like 500 grit.  They just seem to make a slightly rougher surface than 600 grit sandpaper, but that could just be the sandpaper clogging up worse than the green pads, so it's hard to really say.  Just a nagging hunch.

I get no noticeable abrasion effect from the white ones--as others have noted.

I also get nothing from the blue ones.  The only blue ones I've ever had are the ones that come with the sponge attached and say on the packaging that they don't scratch, and they don't.  The other colors (except white) all scratch.  I mean, that's kind of...the whole idea...isn't it?  At least on a bowling ball?  By scratch, I mean they produce an abrasion effect on the surface of the ball.  You may not want that on pots and pans, where you are just trying to get gunk off the surface, but with bowling balls, we WANT the surface to change--that's the whole idea.  When I use 1000 grit sandpaper, I see abrasion.  With blue pads--nothing.  Is there more than one kind of blue pad, and I've just never found the right ones?

Shiv
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Edited on 6/28/2004 9:16 AM
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Strider

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Re: scotchbrite pads
« Reply #9 on: June 28, 2004, 11:02:10 AM »
I agree da Shiv.  For me, the white pads and blue pads (I found them separate, not attached to a sponge) don't "scratch" the surface at all.  I know they are supposed to be around 1000 grit, but they seem useless to me.  I can see a small change with 1000 and 1500 grit sandpaper, but nothing with the blue or white pads.  They barely seem abrasive to my hands.
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Brickguy221

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Re: scotchbrite pads
« Reply #10 on: June 28, 2004, 12:55:43 PM »
The best use I have found with the blue ones is when I have a ball too highly polished and want to tame it a wee bit, I put it in the Spinner and use a blue pad on it and it dulls the shine somewhat, but doesn't remove it.

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charlest

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Re: scotchbrite pads
« Reply #11 on: June 28, 2004, 02:07:12 PM »
Strider and Shiv,

Re: the blue pads.
I only have the ones attached to sponges and, as I mentioned in passing before, I think that is a good thing. I dampen the sponge to provide a flexible backing for the pad and some water leaks through to the pad to provide lubrication during the sanding process. I also have found that the blue pad needs a little more muscular pressure to abrade the ball's surface. After all, resin is quite hard.

Blue, at 1000 grit, my best guess, is just a hair away from the White's pad's theoretical 1200-1500 grit, and no matter how much pressure I put on the white one, I can't get it to abrade at all. I mean I can stop the spinner with the pressure I put on a white pad and still nothing. So, it's little wonder that the blue pad does need a little (relative term, of course) extra pressure.

In fact, I'm going down to my workshop and blue pad a Hercules for tonight's league. Wonder how it'll work. We have pattern "B" tonight.


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TheBowlingKid25

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Re: scotchbrite pads
« Reply #12 on: June 28, 2004, 02:42:49 PM »
quote:
I also get nothing from the blue ones.  The only blue ones I've ever had are the ones that come with the sponge attached and say on the packaging that they don't scratch, and they don't.  The other colors (except white) all scratch.  I mean, that's kind of...the whole idea...isn't it?
The blue ones for me, didnt do anything either. And truthfully, no, the point is to not scratch, just to remove stuff from like plates and sinks. I doubt they were ever intended to be used on bowling balls. Just a fine happening to be stumbled across. On another note, I think there should be a link on this site to that chart that charlest just posted. Just a page for that.
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