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Old 05-11-2012, 01:03 PM
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epoxy primer over lacquer

Hello everybody,this is my first post here. Im presently restoring a 77 k10. I have the cab off the frame. Frames cleaned and painted and ready for the cab to go back on. Im using dupont nasons ss paint. The paint guy said to use epoxy primer first as i have a lot of bare metal. My problem is i think this 77 has lacquer paint on it and this epoxy says not to use over lacquer paint or primer. Is there anyway short of media blasting to solve this problem. Its hard to get to every spot with a sander. Would i have this problem with acrylic enamel paint. Thats all i used on the few cars i painted years ago. Sure could use some help here. Paint guy is not much help. Thanks,Sam

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Old 05-11-2012, 01:24 PM
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A number of years ago I shot DP90 over old laquer primer , old bondo ,& old fiberglass ,it's still holding up fine !!
dave
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Old 05-11-2012, 06:53 PM
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epoxy primer over lacquer

Thanks again dave. What exactly is dp90
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Old 05-11-2012, 08:22 PM
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I Use Spi epoxy for that as it has mild solvents and is not so likely to lift the lacquer..

Sam
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Old 05-11-2012, 08:40 PM
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Thanks sam. I will check on that. Do u know if that will work under nason selectprime 421-19. Than i was going with nasons ful-thane 2k urethane. Thanks again..Samuel
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Old 05-11-2012, 09:11 PM
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Quote:
Originally Posted by samkin
Thanks again dave. What exactly is dp90

epoxy primer
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Old 05-11-2012, 11:12 PM
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Are you sure it's lacquer? A 1977 truck just might
be acrylic enamel.

Try wiping the suspected lacquer with a rag
dampened with lacquer thinner and see if
any paint comes off...
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Old 05-12-2012, 12:08 AM
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DP90 is/was a ditzler 2-part epoxy "sealer" primer. I don't think you can buy it anymore , now it's DP90LF [lead free]. [thanks FED]
dave
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Old 05-12-2012, 05:30 AM
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Runin on empty thats exactly how i discovered it was lacquer. I spilles a small amount and when i went to wipe it off the paint just rubbed off with it. I guess i will have to just back my ears and get to sanding.
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