How do I safely remove polish so I can recoat ?

[VW93]

My '40 Ford Sedan build is at a standstill due to some over sanding & polishing.

After final sanding & polishing with some Mothers Plastic Polish, I found some areas that I went to far with the sanding process. I can still see primer where I sanded through.

The only solution is to recoat the entire body and re sand & polish.

I'm using Krylon Peekaboo Blue from a rattle can.It was also primed with Krylon white primer.

What is the safest way way to remove the polish so I can recoat without any issues ?

Thanks

[GeeBee]

Get yourself to your nearest auto body repair shop and see if they can let you have a small amount of panel wipe, that will remove any grease,polish and wax, I use it all the time between primer and top coat, use it on a lint free cloth.

[Ace-Garageguy]

That's good advice from GeeBee. The products he's referring to are specifically formulated to remove wax, grease and other contaminants before painting. One such product available over here is DuPont PrepSol. http://pc.dupont.com/dpc/en/US/html/visitor/common/pdfs/b/product/dr/ChromaSystemLV/H-19397_3919S.pdf

PPG lists several similar products. http://master.ppgrefinish.com/en/products/collision/preparation/

HOWEVER...These products can be pretty strong and MAY damage your rattle-can paint. Personally, I'd try 70% (NOT 91%) isopropyl alcohol (available at grocery and drug stores, CHEAP !!!) before trying the hotter body-shop panel cleaners on a recently painted surface. We started using isopropyl INSTEAD of the commercially available pre-paint cleaners, even on full size airplanes...because it works better.

If all that's on your paint is polish and not WAX, you won't have too much contamination to remove anyway, and the alcohol will do an excellent job.

As always, TEST FIRST (whatever you use) on an inconspicuous place on the painted model to make sure your cleaner won't hurt your fresh paint.

Edited March 29, 2014 by Ace-Garageguy

[VW93]

GeeBee, thanks for the advise.

Is there any household product I could use ? 91 percent alcohol, Goo B Gone, or ?

I'm house bound for awhile due to my back being out. I would like to use something I may have on hand.

[Ace-Garageguy]

  On 3/29/2014 at 2:24 PM, VW93 said:

GeeBee, thanks for the advise.

Is there any household product I could use ? 91 percent alcohol, Goo B Gone, or ?

I'm house bound for awhile due to my back being out. I would like to use something I may have on hand.

Read post 3. If all you have is 91%, you can do the math and reduce it with clean water to 70%. 91% could very possibly take the paint right off.

[VW93]

Ace-Garageguy,I didn't see your reply before I posted mine.

I'll try the 70 percent alcohol on a spare hood I have.

Thanks

.

[Mike 1017]

I just use Formula 409 Then I wash it with Dawn

[Mike_G]

Some 70% alcohol (usually labeled as "rubbing alcohol") contains lanolin and/or fragrance, you want to make sure you don't get the stuff with lanolin if you decide to go the alcohol route.

[VW93]

Thanks for all the advice. I have some 70 pct alcohol, will try that. Was also going to give it a light scuffing with some 1000 grit wet paper,wash in Dawn & then hit it with a tack cloth.

Thanks again.

[Psychographic]

You can also try glass cleaner with ammonia.

[935k3]

I second ammonia. It will remove waxes and polishes without touching the paint.

[jbwelda]

ya know, good old dishwashing soap is formulated to remove grease and oil. I have found that it works great: soak the body in a solution and then sponge or maybe toothbrush the crevices, dry and paint. works even better if you got a cheap ultrasound cleaner like from harbor freight or amazon.com

jb

[spawndude]

I was at Autozone the other day to pick up a can of Duplicolor Adhesion Promoter and saw they also have Duplicolor Prep Spray Grease and Wax remover. I've never tried it.

I use a product called LA's Totally Awesome Grease and Spot remover to remove paint and wash new kits and also to wash them after I do lots of handling/sanding before painting. Rinse with water. $1 for 64oz. Similar to something like Simple Green.

[VW93]

Thanks for all the great advice.

I sanded & polished the rear inner fenders so the they were nice & smooth.

Tested areas with both the 70 percent alcohol & the Windex with ammonia.

Both removed the polish without harming the paint at all.

I'm going to recoat it today.

Thanks again for the help.