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painting over por 15?

Posted By: 3wracing

painting over por 15? - 07/04/14 07:52 PM

is it possible to paint over por 15 ? primer then paint?
Posted By: Silver70

Re: painting over por 15? - 07/04/14 11:21 PM

They do sell a topcoat... I never tried it. But I use Magnet Paints Chassis black and had painted over it many times. Works better and cheaper than por 15, sold at carquest/napa.
Posted By: geno440

Re: painting over por 15? - 07/09/14 12:26 AM

Scuff it well or the primer and top coat will lift eventually. I asked a vendor and he said use 220.
Posted By: GY3

Re: painting over por 15? - 07/09/14 06:27 AM

Do NOT use the POR15 if you haven't already.

Do a search here if you need validation.

A good epoxy primer like PPG DPLF90 is much better.
Posted By: DAYCLONA

Re: painting over por 15? - 07/09/14 06:55 AM

Quote:

Do NOT use the POR15 if you haven't already.

Do a search here if you need validation.

A good epoxy primer like PPG DPLF90 is much better.







I coated the entire sandblasted bare steel shell of my 71 HEMICUDA with POR-15 Clear after all the bodywork was finished, then topcoated that with DuPont primer sealer, POR 15 recommendations were NOT to sand or effect the POR-15 finish in any way prior to coating with a sealer or primer, I then primed/blocked the car, the finish coat was single stage DuPont Centari enamel,....that was in 1994, that was over 2 decades ago, the finish on the car, the body work, the POR-15 base are still flawless in finish/appearance, like anything in the automotive bodywork/paint application trade, prep, prep, prep, and attention to detail yields results


Mike
Posted By: RSNOMO

Re: painting over por 15? - 07/09/14 07:08 AM

Just curious why you went that route...(POR15)

Is that your preference over an etching primer???


My experience with POR 15 is limited...

I painted the brake drums with black POR

Holding-up well after 20+ years...


I painted some batter-tray bolts with the clear...

Didn't hold-up worth a schnit...
Posted By: DAYCLONA

Re: painting over por 15? - 07/09/14 11:31 AM

Quote:

Just curious why you went that route...(POR15)

Is that your preference over an etching primer???


My experience with POR 15 is limited...

I painted the brake drums with black POR

Holding-up well after 20+ years...


I painted some batter-tray bolts with the clear...

Didn't hold-up worth a schnit...









That was one of my toys that I deviated on, I was interested in trying a new technique during it's restoration, generally I prefer Acid Etchant in the Dupont Vari-Prime line to topcoat a freshly blasted frame/shell, then followed by a high build primer like 2K in the Dupont line

The POR-15 has had no issues over the years, nor the topcoats, I've used the Chassis black on several projects in the mean time with no issues either....

Mike
Posted By: therocks

Re: painting over por 15? - 07/09/14 05:02 PM

I did my frt end and gas tank back in the 90s.My kid did the rear end and a buch of his truck with it also.It still looks new.I even had to tap my upper A arms in with a hammer and no ill effects.Rocky
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