Thursday, March 3, 2011

Auto Body Sanding: What Sand Paper to Use and When

Okay, so you are starting on a project and you ask: with all the sand paper grits, which one do I use for my application?  Here is a quick quide to help answer a few question.

Sandpaper Selection Chart:

Grit                                         Usage Description

File with holder                          Shaping body filler/bondo.

40 grit                                      Very rough sanding/grinding before body work.

80 grit                                      Rough sanding before body work and for sanding body filler.

180 grit                                    Final sanding and feather edging body filler.

320 grit                                    Optional final sanding before using primer and also for sanding spot putty.

400 grit                                    Rough sanding primer or for fine sanding spot putty.

600 grit                                    Final sanding primer, sand with 600 before using base coat colors.

1000 grit                                  Wet sanding a panel to be repainted.

1200 grit                                  Wet sanding a panel to be repainted.

1500 grit                                  Final sanding clear coat to remove defects before polishing with rubbing compound.  Can be used for sanding down a panel to be repainted instead of 1000 or 1200.

Buy Sandpaper by the kit or the roll at 66 Auto Color

Did this help?  What auto body tech tips would you like to see added to our posts? Please give us your comments.

Remember to check out our webstore for all you auto body supplies:  http://www.66autocolor.com/

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