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  #1  
Old 01-31-2019, 09:09 AM
RdHuggr68 RdHuggr68 is offline
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Default Paint for subframe

I am ready to paint my subframe and I am searching for a durable paint that can withstand heat, grease, etc. I can't powdercoat due to some body filler used to smooth out a few areas. Thanks
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Old 01-31-2019, 11:08 AM
dhutton dhutton is offline
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Three coats of SPI black epoxy.

Southernpolyurethanes.com

Don
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Old 01-31-2019, 09:32 PM
RdHuggr68 RdHuggr68 is offline
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I had painted the underside of my car in Aug 2017 with SPI black epoxy. I received a gallon in July2017 along with the activator. Wondering if it still good, it has been in the cabinet since we used it in Aug. 17.
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Old 02-01-2019, 08:21 AM
dhutton dhutton is offline
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Should be ok but give it a good stir to make sure pigment hasn’t separate. Activator will be ok.

Any doubts mix up a small amount and do a spray out test panel.

Don
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Old 02-01-2019, 11:07 AM
RdHuggr68 RdHuggr68 is offline
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Quote:
Originally Posted by dhutton View Post
Should be ok but give it a good stir to make sure pigment hasn’t separate. Activator will be ok.

Any doubts mix up a small amount and do a spray out test panel.

Don
Don, I called SPI and they said same thing, "As long as it hasn't separated epoxy should be good". They also added you should flip paint can every 3 months to assure no separation. Thanks for your help!
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Old 02-08-2019, 06:36 PM
RdHuggr68 RdHuggr68 is offline
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I called SPI again and asked about the shelf life of the Activator. They said once you open the activator it is good for 1 year.
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Old 02-08-2019, 08:17 PM
dhutton dhutton is offline
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Quote:
Originally Posted by RdHuggr68 View Post
I called SPI again and asked about the shelf life of the Activator. They said once you open the activator it is good for 1 year.
Barry is the owner/chemist of SPI:

http://www.spiuserforum.com/index.ph...91/#post-51175

Don
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Old 02-09-2019, 12:54 PM
RdHuggr68 RdHuggr68 is offline
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Quote:
Originally Posted by dhutton View Post
Barry is the owner/chemist of SPI:

http://www.spiuserforum.com/index.ph...91/#post-51175

Don
I just read SPI User Forum, Barry says 2-3 years and another sales person tells me 1 year after opened. I wish they would get on the same page.
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Old 02-09-2019, 07:52 PM
dhutton dhutton is offline
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Quote:
Originally Posted by RdHuggr68 View Post
I just read SPI User Forum, Barry says 2-3 years and another sales person tells me 1 year after opened. I wish they would get on the same page.
I’ll listen to Barry. You could send him a text on the tech line. He answers quickly.

Don
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Old 02-17-2019, 11:27 AM
minendrews68 minendrews68 is offline
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Originally Posted by RdHuggr68 View Post
I am ready to paint my subframe and I am searching for a durable paint that can withstand heat, grease, etc. I can't powdercoat due to some body filler used to smooth out a few areas. Thanks
When I powder coated the rearend of my Camaro, I too did some body filler smoothing. I used the filler that had aluminum flakes in it. The powder coater told me he didn't know if it would work, but I told him to go ahead and we'll see. He did and its been several years and it still looks as good as it did in the beginning. So, I'd have to say using the filler worked quite well.
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