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yes u "need" to sand the whole car. try to stay away from edges tho, i burned thru the edges so many times, thats probly the most annoying part of the whole job..



Two general questions:
1.) Edges. I'm looking for advice on dealing with edges. Everyone says, "Stay away from the edges". I'm confused.

I can understand staying away from the edges in the FINAL color sand and polishing stage(s) -- but during metal prep and primering (assuming you're doing this), or initial scuff up of factory paint through intermediate coats... wouldn't the edges need to have some sanding done to provide a "key" for the paint? What's the general rule for dealing with edges from the start?

2.) Windshield or other windows' rubber trim: If not removing the glass and surround, for spraying I've heard of wedging a cord or rope underneath the rubber trim to keep it way from the metal surface. When spraying, this allows some spray to shoot underneath the rubber trim -- so as not to create a hard paint line.

So, for rollering / brushing -- what advice do people have for these areas?

Thanks in advance,
- Dan



Staying away from the edges when buffing keeps you from burning through the paint. Edges places extra surface pressure on the paint surface from the buffing pad. The same is true when sanding. What I did when I was a professional bodyman was sand the edges carefully by hand using sandpaper wrapped in a sponge and kept it extra wet. I turned off the radio and listened for any little "squeak squeak squeak" sound when sanding; this meant either trash was under the paper, or I was bearing down too hard. I machine buffed the entire vehicle, but did all the corners and edges by hand. As for sanding primer, I did the same procedure.

As for rubber trim, use the same method you'd use when spraying, with the rope trick. If you thin your roller paint enough, material will flow underneath.