Spraying epoxy primer - Chevelle Tech
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post #1 of 13 (permalink) Old Jul 24th, 09, 6:14 PM Thread Starter
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BILL
 
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Spraying epoxy primer

Can i spray my epoxy primer right on bare metal? I purchased some wax and grease remover to wipe it down with first, but is there anything else i need to do before spraying? I`ll be using Nason epoxy primer. Thanks for any input. Bill

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post #2 of 13 (permalink) Old Jul 24th, 09, 6:43 PM
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Re: Spraying epoxy primer

I would only clean it with what they recommend, heres this that I found. http://metropaint.com/pdfs/491-16.pdf

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post #3 of 13 (permalink) Old Jul 24th, 09, 7:25 PM
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Re: Spraying epoxy primer

This brings up a question that I was getting ready to post.I got my floor pan,rockers and trunk parts in ,and I was going to coat the inside of the panels with epoxy primer.I searched through past forums and it seems thst SPI has a superior product.2 questions.Do you agree with this,had good results with this product?Should I use a top coat on it for inside panels where it is really just a rust preventitive?

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post #4 of 13 (permalink) Old Jul 24th, 09, 8:43 PM
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Re: Spraying epoxy primer

Before cleaning the bare metal with w&g remover, sand it first with 80 grit to give it some "tooth" for the epoxy to grip. SPI recommends this. I used this procedure with SPI epoxy primer (an excellent product at reasonable price) with excellent results.

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post #5 of 13 (permalink) Old Jul 27th, 09, 6:21 PM
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Re: Spraying epoxy primer

The Nason will work fine with all the prep work suggested above.

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post #6 of 13 (permalink) Old Jul 27th, 09, 6:57 PM
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Re: Spraying epoxy primer

clean it good BEFORE you sand and clean it good AFTER you sand.

You will want to da sand that metal with 80 grit to get the best tooth for adhesion.

Hands down SPI has the best epoxy primer...Eric

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post #7 of 13 (permalink) Old Jul 27th, 09, 8:26 PM
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Re: Spraying epoxy primer

It may be better than ppg,but I don't think it is the best.
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post #8 of 13 (permalink) Old Jul 27th, 09, 8:52 PM
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Re: Spraying epoxy primer

I have not used SPI. I get my supplies deivered from 3 suppliers and have been using DP or Transtar. Neither of which I've had any problems with in 25 years. I've heard BASF Euroxy is also good. What is it about SPI that makes it better than all the other manufacturers; price not being the deciding factor?
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post #9 of 13 (permalink) Old Jul 27th, 09, 9:00 PM
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Re: Spraying epoxy primer

Raven I have used BASF Polyuroxy if that's what you are refering to.It is a hybird that also use an isocyanate as well as an epoxy hardener to kick over,very good product.
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post #10 of 13 (permalink) Old Jul 27th, 09, 9:34 PM
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Re: Spraying epoxy primer

Quote:
Originally Posted by crazy canuck View Post
Raven I have used BASF Polyuroxy if that's what you are refering to.It is a hybird that also use an isocyanate as well as an epoxy hardener to kick over,very good product.
Yes that's it. So what's with the hype on the SPI. I like to verify products with multiple comparisons and performance differences. How can SPI being claimed as the best be substantiated? Is it a west coast product ordered by hobbiests having their supplies freighted to them.
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post #11 of 13 (permalink) Old Jul 27th, 09, 11:12 PM
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Re: Spraying epoxy primer

I can't comment very much on the spi,I have used it on a previous job.Maybe others here can comment on it as it seems to be a hit on this site.I paint hundreds of cars in a year at a restoration/collision shop,if I was using spi as much as my regular brand I would have an opinion.
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post #12 of 13 (permalink) Old Jul 28th, 09, 12:15 AM
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Re: Spraying epoxy primer

I've used the SPI on a couple projects, sands real nice, but the proof is in the corrosion control. I can't comment on that since my experience has been short term.

Jerry
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post #13 of 13 (permalink) Old Jul 28th, 09, 1:09 AM
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Re: Spraying epoxy primer

I've used SPI on a couple projects Harley and 1961 Skylark. I am not a pro painter/body man, but have been doing it for a while. I used SPI from bare metal to clear coat on my Harley and it came out real nice, the clears they have are great too. I can only say that I am VERY happy with SPI prodcts, but I can't really compare them to anything else since I don't do this for a living.

Go to their forum and ask the people that use it a lot http://www.southernpolyurethanes.com/homepage.htm I have yet to hear a bad work about their primers or clears.

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