What type grid sand paper for sanding body for bondo

[T-Bucket Bob]

What type of grid sand paper is good to help bondo stick to body, and what type of Bondo is used?

Thanks, T-Bucket Bob

 

[2old2fast]

80 grit is prett generally accepted for bondo work , more important to wash down surface before you sand w/ a prep wash , talk to your paint supplier ...