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Sanding down body filler

Printed From: the12volt.com
Forum Name: Fiberglass, Fabrication, and Interiors
Forum Discription: Fiberglass Kick Panels, Subwoofer Enclosures, Plexiglas, Fabrics, Materials, Finishes, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=38127
Printed Date: July 02, 2025 at 6:03 AM


Topic: Sanding down body filler

Posted By: r0yal
Subject: Sanding down body filler
Date Posted: August 26, 2004 at 1:53 PM

What grit of sand paper is best used for sanding down body filler (rage gold, bondo, etc)

                 thx




Replies:

Posted By: xtreamcc
Date Posted: August 26, 2004 at 3:07 PM
depends. I usually start with like 100 unless its really bumpy then I start with like 40 and sand it down, then jump to 100-150 sand it down till its almost evened out then jump up to 250+ sand it smooth. Fill in the pin holes with glaze and smooth that down with 400 or so and it should come out fine.

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Posted By: dangerranger96
Date Posted: August 26, 2004 at 4:54 PM

couldnt have said it any better( i hate sanding)




Posted By: CarAudioHelp
Date Posted: August 27, 2004 at 11:19 AM
It all depends on how thick the filler was put on and how lumpy it is. The 3M Roloc discs work really well for the heavy work. I go for the gusto with the 24 grit but they have a 36 grit too. I don't see a lot of difference personally. Then just work your way up the list of grits. Again, I use the 3M sanding discs so it's 80, 220 and 500 (they also make a 400 which I skip).

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