Sanding grit for bodywork

Abrasive discs and sanding grit

An abrasive disc is a tool used to polish and treat surfaces before applying paint or a finish. Each abrasive has a different hardness and density depending on the surface to be worked.

The lower the grit size (P40, for example), the more aggressive the abrasive disc will be. On the other hand, the higher the grit size, the finer the sanding. It is important to choose the right abrasive for the job. Grit size corresponds to the number of lines per inch of each sieve.

How do I choose my sanding grit?

Here's a summary of the sanding grits you can use to touch up your bodywork. These explanations also include the grits for the sanding disc.

P40 to P120: Stripping work.

P150 to P280: Sanding putties.

P320 to P500: Sanding primers.

P600: For dull car paint, Clearcoat scratches on bodywork.

P800 to P1500: For depolishing or polishing processes.

P2000 to P7500: For the finishing stages on your bodywork.

What is the finest sanding paper?

The finest sanding paper or grit is P7500.

What is the coarsest sanding grit?

The coarsest sanding grit is P40.

Tech'team tip: do not exceed a particle size difference of more than 100 between each abrasive step.