Trying to sand down my rear bumper for my 94 Integra.
What grit should i use so i dont damage the bumper?
Also, what grit should i use for the rest of the car? and which grit should i use when i water sand it?
Please Help Thanks

 

It depends where you are at and what you're going for.Pics would help and to wet sand a car use 400 and 600.There is a sticky in this section that goes thru the whole process of bodywork