Thread: Nuther '32 question

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Trying to sand mold marks off this new car. Do I need to go over the
sanded area with putty before primer. Thanks for any help.

Not necessarily. You will need filler only if there are deep gouges or low spots. The sanding marks will be filled by priming and blocking.

Go to this site and read about how to prepare a 'glass body for paint.

http://www.wescottsauto.com/site2003C/frame_specs.html

You should download both pages.

Also, read the quote below.

After all the components are fit, drilled and cured, sand all the parts with 80 grit dry paper on a block or file board. The block sanding will ensure that the body and parts are straight and correct before the first coat of primer is applied. During the 80 grit sanding, the flash lines of the body are ground out and filled if necessary with a standard non-tack body filter. Also, while blocking with the 80 grit, all door and trunk lines should be checked for consistency and edges checked for roundness.

The 80 grit sanding leaves an excellent adhering surface for the primer. When the parts are all sanded and prepped with 80 grit, apply a few generous coats an epoxy type primer. After the primer has dried, apply a light guide coat of a lighter or darker color and continue to block sand using 180 grit dry paper. Following this spray more primer, applying enough coats to allow blocking two more times using 400 grit paper for finish sanding. Again use a light guide coat to ensure all areas are sanded completely.

These blocking and sanding steps will leave a super slick and straight finish for the final sealer, base color and clearcoat.