auto bodywork repairs , how do i get the best results to prepair for spraying any suggestions?

Question

i am trying to repair some dammage on limo door have been rubbing down with wet and dry days but still cant get rid of the last few ripples and bumps

Answer 1

the question is not very clear but I assume you have ripples and dust in the paint (clear coat)? If so, the best way to get rid of those is to use a straight razor blade and very cariffuly scrape the ripple langthwise until it is about flush with the rest of the paint. Then use 1000 grit sand paper with water, then 1500 grit, then 2000 grit. Once you have it sanded you will need to buff it out.
This answer does not apply if this is not the problem. I though I'd leave it anyway rather then not answer. :)

Answer 2

Assuming you have already damaged the gloss coats, the way to do this is to use a hi-build primer and rub down with fine wetndry. Repeat as necessary till you get the surface fit for spraying with top coat. Tip 1 make sure any bare metal exposed is treated with a rust killer. Tip 2 after applying the primer add a mist coat of a contrasting colour before starting to rub down; then you will see very quickly where more primer is needed to level the surface. If you need more than a millimetre of primer to fill a dent, then consider a mobile body repair outfit.

Answer 3

Get a paint paddle and fold the sand paper around it then sand it diaginal from top to bottom with water it's called water blocking, If you are sanding bondo that you filled in a dent with use 80 grit the 180 grit dry with a paint paddle ,if you are trying to sand primer down to paint i'd use 1500 grit wet or dry paper with water and paint paddle but if you are trying to smooth out paint so you can buff i'd be very careful trying to get the ripples out cause you can go through the paint and would have to repaint it .Hope this helps, let me know if this is the information that you need

Answer 4

USE Graded wet n dry on light scratches and stopper or on primer coats.If you have filler then scrape n use course to medium paper then spray with filler/primer spray then rub with finer wet n dry and even finer wet n dry until the finest actually sticks to the paint (Don't go trying to work on a dent or scratch by limiting the area to it.The paint will have to be feathered/blended in to original,so work out from the damage/in area about 1.5 to two times or even 3 times depending on damaged section,its relative!)Hope you understood that! If you have metallic paint you have a gel or lacquer top coat and whilst these can be "rubbed down" , metallic does not respond to paper very well!(there are several different paints and finishes out there and your question hasn't covered exactly what you have,so if not happy with answers resubmit the question with some of the knowledge gained as to what you have and need done and i am certain one of us lot will know and respond

Answer 5

Use a cork or rubber block with 600grit wet and dry - wet it first.

This should get rid of the worst of the ripples and bumps but are they in the paint or in the metal of the skin?

You may have to apply body filler and then rub that down...

Haynes do a good guide in their manuals but any search should get you a lot of sites with good clear pictures.

If you feel that you're spending a lot of time on it, it may be less expensive to get it quoted by a body shop and bite the bullet to get it done professionally.

Answer 6

The Advance Auto online video "Scratch and Dent repair" is good for some repairs
http://www.advanceautoparts.com/english/youcan/mediaplayer/mediaplayer_clinics.asp

The DIY network also has some good body repair info:

http://www.diynetwork.com/diy/ab_auto_body_work/0,2020,DIY_13675,00.html

Answer 7

try sanding it with 800 grit sand paper lightly and then wet sand with 1000 grit, after that try buffing the hell out of it... Hope this helps

Answer 8

google is a big place u joke