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Old 06-13-2005, 07:54 PM
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Newbie Spraying Epoxy

I have finally started spraying ... wooohooo

It has actually gone better than I had figured it would. I have had a couple of problems like hitting the freshly painted fender with the hose etc, but all in all so far I am happy.

At first I thought I was getting some krazing or ?? but then I realized what I was seeing was the places that still had some original primer like how this Picture is.

Am I spraying the Epoxy primer to thin or is that ok for the pattern from the original to show up?

Also if I still have primer in the gun after the first coat, how long is it OK to let it sit in the gun?

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Old 06-13-2005, 07:59 PM
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That would be normal on the first coat for epoxy to show the lines.
Let first coat set 30 minutes to an hour or overnight if you want than spray a second coat and it will take care of 90% of the problem, of course 2K primer will take care of it also when you get to primering.
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Old 06-13-2005, 10:05 PM
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Another H'mmmmm????

My thoughts on priming was always to get enough on to have an even coat all over..I always have been shown that if the udercoat (primer) had any blotches or holidays in it that those would show up in the base coat and final..

Am I wrong or being too anal..??

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Old 06-14-2005, 05:26 AM
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that is really going to depend on the color and the paint you are spraying. colors that cover well it doesn't really matter, others like reds, etc. should be an even color before you start spraying or you will always see the spot.
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Old 06-14-2005, 10:09 AM
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Thanks guys. I think the first day I may not have been putting it on wet enough. The stuff I did last night came out with less of the original primer pattern visible. So far I am pretty happy, but it may just be that I am to dumb to know better.

One of the biggest problems I am running into is finding ways to support all the parts and get them spread out enough so I don't run into them when painting something else. (I have all the fenders, trunk and hood, sunroof, doors, etc off. I have done it in two batches and still have the doors and the body of the car to do.

One thing I learned the first day was to not hang anything by wires no matter how nice it makes to get to it, unless you are really good at spraying a moving target.

But I am still curious, how long to you feel comfortable letting paint sit in the gun while waiting for parts to flash? Or do you empty the paint/primer out and spray some reducer through it while waiting or ??

Also I have some parts that don't get seen, such as the inner headlight ring. I don't really think it needs to be painted with the Base. Should I get a rattle can of black and spray over the Epoxy, or just leave it epoxy or ??

Thanks for any replys.
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Old 06-14-2005, 10:46 AM
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Long as

well I paint it all when it is open..stops rust ya see..

Just mix enough epoxy to shoot what you have ready to shoot..you willsoon get the hang of mixing about the right amount...I do not care for leaving any mixed material in a gun as that is asking for a mess..

hanging things from wires is fine..you will get used to shooting moving targets..sometimes a bit of thought and you can get this to work for you..

Maybe two wires..one to support and one to make the piece more stable..

Try making a kind of shallow booth in a corner of your shop just for doing small parts..

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Old 06-14-2005, 04:23 PM
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Follow the paint mfg recommendations on pot life to see how long you can let it sit in your gun. Most I've seen have a 2-4 hour window.
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