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Abrasiveness chart

463K views 81 replies 69 participants last post by  NorthantsPete 
#1 ·
#15 ·
I like the formatting on that page its a lot better than trying to do it with text in a forum post. The links to the original Autopia posts don't seem to be working for me. Here are some new links for anyone interested -
My thread regarding foam pad types http://autopia.org/forum/showthread.php?t=53260

Beanbag's post regarding product cutting actions http://autopia.org/forum/showthread.php?t=36208

> WX51 TXR
Will you be posting details of the 'Scottish Detailing Meet' in the Northern Region forum ? I would really like to see a demonstration of wet sanding then polishing out the marks with a PC.
 
#16 ·
#17 ·
Saw this and thought I'd resurrect the thread so here goes... does anyone know where Autoglym Paint Renovator would sit in this chart? https://sslrelay.com/buypartsby.co.uk/autoglym/AUTPR.jpg

I used Sonus SFX2 with my PC polisher (plus P21 Wax) at the weekend and felt that on one or two marks I needed something with a little more cut to it. I have a bottle of the Autoglym in the garage so would this suit do you think? :confused: Rich...
 
#27 ·
My suggestion in understanding abrasive grits is to buy products that name the grit sizes:

600 grit - extra heavy for use after wet sanding or on a heavily oxidized single stage paint
800 grit - heavy can be used above
1200 grit - medium for single stage and some badly scratched clear coat finishes
1500 grit - light medium - for correction needs between
medium and light grit
2000 grit - light for use on clear coats
Micro Fine grit - for use on spyder scratches on clear coats

The problem you will run into here is trying to get your supplier to provide you definitive information on the grit size in their compounds. If you force the issue they might respond with information. But the chemists use this terminonlogy when selecting abrasives for the compounds.

They use either silica which does not break down as it is used or aluminum oxide which does breakdown as it is being use. But it has a tendency to gum up. So a good compound is one that uses a combination of both silica and aluminum oxide.

Regards
Bud Abraham
 
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