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Old 01-06-2004, 06:52 PM
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Question HOK paint over PPG K36???

Hi everybody. I'm in the middle of bodywork on my 64 olds. I have been planning on using PPG paint products for everything. Now I think I've changed my mind and would like to switch to House of Kolor. The HOK candy base coats look very interesting.

My question is can I use HOK paint over PPG K36 primer? Half the car is primered right now, and I'd prefer to not have to buy another gallon of primer.

I know HOK says only use HOK products, but does anybody know if K36 is compatible? I suppose if it came to it, I could cover the K36 with a HOK primer/sufacer...

Thanks,
dh
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Old 01-06-2004, 08:13 PM
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I would think it would be fine, K36 is kinda the standard in primer/surfacers. I am considering the same thing for my 34. I have two gallons of K36 and I sure do like the HOK candies. I will be watching this thread.

Vince
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Old 01-07-2004, 08:44 AM
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dh79

I think the k36 will work OK , I have mixed before and it worked OK for me, I do'nt know what ppg costs up there but down here hok is a little cheaper than ppg, and if you follow the instructions's you will get a good finish and hok has a lot more color choice's, you can get the tech books for nothing, the color chips cost me $35.00, if you paint for a living this is a good book to have, better than ppg , just my opinion. Doc.
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Old 01-07-2004, 09:47 AM
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Anytime you mix and match brands of paint your taking a chance of an adverse chemical reaction. Basically it comes down to.... do you feel lucky and are you willing to risk all the work you've done getting the surface ready to paint. If your answer is yes, then go for it.

Centerline
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Old 01-07-2004, 06:18 PM
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what is k36 exactly?
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Old 01-08-2004, 05:07 AM
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Quote:
Originally posted by 327amc
what is k36 exactly?
K36 is PPG's high build catalyzed primer/surfacer.

Vince
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Old 01-08-2004, 04:51 PM
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hi,
i've said it before and i know most people don't like it but mixing brands is not a problem. manufacturers of course don't like it. there are actually advantages to it if you are a professional painter. mixing parts of chemical combinations from one brand to another is very risky but still possible and time testing should be done along with other samples. i used a combination for years that the ppg rep. said he would not guarantee or recommend but a few years later became a recommended procedure. chemical backfires usually come from using the wrong product for the job. the worst i can think of would to use an enamel primer under a lacquer top coat you'll get the wrinkle affect. i was a professional at one time but i got very allergic to it and had to quit, but that doesn't mean i don't sneak in a paint job once in awhile.
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Old 01-08-2004, 07:54 PM
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Thanks for the replies.

Here's what I'm going to do: finish the bodywork and priming with the PPG K36. Then I'll cover the primer with HOK sealer, and then shoot HOK paint.

I figure that should work well. I guess I'll find out when it's finished in a couple months (yeah, I'm on the slow track).
dh
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Old 01-08-2004, 09:05 PM
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Sounds good, let us know how it goes.

Vince
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Old 03-02-2005, 12:04 PM
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Its been 13 months how did it go?
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Old 03-02-2005, 05:04 PM
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So if mixing paint brands is SO BAD, how come I get away appling Dupont paint on a collision damaged car that was painted with say sikkens from the factory? If this was so bad of a pratice body shops would be stocking products from every paint manufactor.

If the product is cured whats the difference?
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Old 03-02-2005, 08:25 PM
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Quote:
Originally Posted by sevt_chevelle
So if mixing paint brands is SO BAD, how come I get away appling Dupont paint on a collision damaged car that was painted with say sikkens from the factory? If this was so bad of a pratice body shops would be stocking products from every paint manufactor.

If the product is cured whats the difference?

The problem I have had is that PPG would drop their guarantee if I used anything else over or under it. That's all. I never had anything blow up but the PPG rep said I would void my warrenty that they give our bodyshop. I do it all the time when I do my custom work out of my garage.
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Old 03-02-2005, 08:30 PM
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I agree. Usually if there's a compatability problem you'll know it before the materials are dry. There's many companies out there today that offer clears suitable and guaranteed to work over any brand of color. Lifetime guarantees! Are they the best products to use- who knows, maybe, maybe not. Your best bet is still to stick with an engineered system but I have mixed materials many times in the past with probably a 99% success rate.
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Old 03-02-2005, 09:29 PM
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AC/DC I fully agree, that's PPG covering their butt!
Who would you blame if the PPG clear started peeling off that dupont basecoat?
PPG aint gonna do a thing about nor is Dupont.
Body shops shouldnt be intermixing products because of this reason.

But appling HOK basecoat over a cured 2K product like K36 isnt gonna make a lick of difference.
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Old 03-02-2005, 11:00 PM
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is the PPG primer equal too or better than the SPI epoxy
or would it be a step down?
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