BallReviews
General Category => Coverstock Preparation => Topic started by: Grayson on June 01, 2008, 06:37:43 PM
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I got some samples of a grinding material in very fine grit (4000 and 1600).
the astonishing effect is that the rougher drgt is not so good at dulling the ball than the finer one.
Anyone have an idea why this is.... I have no clue about material science.
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Sebastian Koch
"Have fun and bowl well!"<font face=''Comic Sans MS''></font id=''Comic Sans MS''> - Grayson
"Some things are made so even idiots won''t fail using them.... But I ask what about the genius?"<font face=''Comic Sans MS''></font id=''Comic Sans MS''> - Grayson
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Edited on 6/2/2008 2:43 AM
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What kind of stuff is it? A rubbing compound, with loose sanding abrasives, or something "fixed" like a sanding pad? If it is some fluid/loose material, I could understand this effect - under movement/pressure, the abrasives get hold on those surface parts that stick out the most. A coarse material will have a more "flattening" effect than fine stuff, which might even get lost in relatively wide sanding lanes and such - and a proper grit match to the sanding material is necessary. On a fixed pad, you do not have the problem - the particles are held in place, so they cannot "avoid" the high ridges, and the sanding effect takes place, nevertheless.
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makes sense...
it is in fact a "rubbing compound"... I got samples for free and did some testing for a special "project" of mine....
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Sebastian Koch
"Have fun and bowl well!" - Grayson
"Some things are made so even idiots won't fail using them.... But I ask what about the genius?" - Grayson
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I have my answer now.
It seems the finer grinded material is rougher/sharper on the particles whereas the rougher material with a higher grit it seems that the particles are not so rough and rounder and therefore don't cut into the material
After all this stuff is mainly used for grit blasting
..but this stuff still is marvelous! The one I tested is ~1500 grit... I know this is just a rough cause the standarts differ between US and Europa
it dulles the ball within seconds without a spinner... leaves a tacky surface and the dulling is even and without any striae I am normally seeing from pads
--------------------
Sebastian Koch
"Have fun and bowl well!" - Grayson
"Some things are made so even idiots won't fail using them.... But I ask what about the genius?" - Grayson
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c(')(')
Unoffical Ballreviews.com FAQ (http://"http://www.ballreviews.com/Forum/Replies.asp?TopicID=74110&ForumID=16&CategoryID=5")
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Edited on 6/3/2008 5:14 AM