View Full Version : M317 Unigrit Sand & Clean

Michael Stoops
Oct 27th, 2014, 01:48 PM
M317 Unigrit Sand & Clean



Scuffing agent to prepare parts for painting application

Automotive plastic parts & blend panels

2 in 1 product


Product Features:

Quickly scuffs & cleans surfaces
Non sand scratch swelling formula
Great for plastic bumper paint preparation

M31716 - $14.00
M31772 - $36.50

Nov 5th, 2014, 09:26 PM
How abrasive is this? Application process? I know what is intended for but just thinking, would this be acceptable to do in place of wet sand? Or way to abrasive?

Michael Stoops
Nov 6th, 2014, 07:55 AM
Application is usually with a scuff pad (Scotch Brite kind of thing) in varying degrees of aggressiveness - often a personal preference sort of thing. The idea is to clean and scuff a surface so that it gives a fresh coat of paint some bite onto that surface. Think of a spot repair on a panel, a hood for example: once the spot is repaired (a little hammer and dolly work, maybe a touch of filler) you can't just paint that spot, you generally have to paint the whole hood. But you don't strip the entire hood before paint, so you need to scuff the remaining "good" paint in order for the respray to take hold. That's where this comes in as it both cleans the existing paint and gives it just enough of a rough up to accept the new paint. It's a lot less expensive than using up sanding discs all the time, plus it saves a step by cleaning while scuffing. Overall finish is not going to be as nice as a proper wet sand job, but that's not as critical since enough paint will be sprayed over it that you'll never know.

Nov 6th, 2014, 09:37 AM
What is the application process on this?

i.e tools involved?

Nov 6th, 2014, 06:13 PM
Thank you Mr. Stoops, I assumed but was just curious. Thanks

the other pc
Sep 13th, 2018, 11:17 AM
Let's say I wanted to prep a large panel, or even a whole car for new paint.

Traditionally, I'd use a DA with sandpaper to scuff the old finish.

Can I apply M317 with a buffer? A DA with a microfiber pad? Foam? A rotary with a wool pad?