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Old 10-04-2011, 09:43 PM
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Preval Sprayer for Primer

When I paint cars I rent a paint booth so I want to finish as much of the process as I can at my house before I drive it to the shop. I don't own an air compressor or a primer gun for my house so I was planning to use a can primer before I heard of the Preval Spray gun (refillable spray can).
http://www.youtube.com/watch?v=tWpK7T64qiA
I'm wondering if anyone has any experience with using this for primer and if you have used it for paint too, how was the orange peel?
I'm curious as to how much you have to thin the primer and paint. And how difficult would it be to get all the door jams and engine bay with this thing.

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Old 10-04-2011, 10:03 PM
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never used it but can assume it's probably a 1.4 tip so they can sell it as an all around type sprayer. I would say that it's not worth it to spray any paint out of it cause the atomization is probably horrible and may not spray primer good cause the tip isn't big enough. Not sure though. I'd say you're better off getting a cheap gun to spray primer for around $50. If you want something for jambs and priming get a finish line gun and it will come with different tips. I personally got a separate primer and gun and good detail gun for jambs but for what you want out of it a finish line sounds good, and if that's going overboard at least get a cheapie primer gun.
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Old 10-04-2011, 10:19 PM
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those are crap. One of the guys at work used it. We used it for acrylic enamel and had to thin out paint real thin in order to spray with it as nozzle is pretty thin. I would not use it for automotive work. There is no adjustment either, it just shoots out in circular pattern.
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Old 10-04-2011, 10:27 PM
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sounds great for metallics.
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Old 10-04-2011, 11:35 PM
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You want to see one in action, here you go (click here) for a compressor-less repair.

Brian
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Old 10-04-2011, 11:36 PM
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And here's an update on how it has held up. (click here)

Brian
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Old 10-05-2011, 06:52 AM
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The preval might be OK for very small touch-ups with thin products but I wouldn't use it for primer.

Why not invest in a portable compressor and a primer gun? You can do your primering outside as long as the weather is decent.

Then rent a spray booth for your sealer, base and clear.

Also, if you ever need to do any touching up, you can get an airbrush which is way better than a preval.

Last edited by roger1; 10-05-2011 at 07:05 AM.
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Old 10-05-2011, 07:44 AM
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I agree with you Roger, even a small compressor with a little touch up gun you could get a lot done. A little bit at a time but it would be MILE ahead of something like the preval.

Brian
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Old 10-05-2011, 09:17 AM
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If you have a compressor, an air brush can do a better job then a Preval. I did an entire T-bucket chassis with Imron with a little Binks version. Of course I about poisoned myself in the process but that frame as well as the front end parts turned out great - no dirt,etc, but was probably just lucky. Better yet, the touch up gun
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Old 10-05-2011, 09:26 AM
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I have a 15 gallon compressor with an SRI pro gun and at times I look confused when I'm using it and I don't hear the compressor turn on, which just means it's not an air hog.
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Old 10-09-2011, 10:46 PM
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Well I've got to figure something out for primer. I had a problem on my Saturn when I primed it will spray cans. The metal parts worked perfectly but the plastic body panels bubbled in some areas.
So if I have to use a spray can primer I want to make sure that it will work on a bumper or a hood, is any 2k spray can primer good for that? Has no one used a 2k primer in the preval? It seems like a cheaper and a little easier way to do it.
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Old 10-10-2011, 12:06 AM
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That's because the plastic parts on a Saturn are waterborne primer. If it isn't sanded thin or thru you can spray the urethane or epoxy over it. But if it gets sanded thin or thru the solvent from the urethane or epoxy gets under it lifting it off the substrate.

I don't know of anyway to spray the waterborne other than a gun. I guess the preval would work but you would have to apply a LOT of coats to build up enough film to keep the paints solvents from getting thru it.

Brian
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Old 10-10-2011, 12:11 AM
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Actually there is a process to use Preval Spray Gun. This can spray epoxy and gel coat. It can spray solvents to clean gunk and grime. It's great for interiors, too, because you can fill it with cleaners that work on leather and plastic. With Preval, you can keep multiple containers sealed and ready for your next job. This way, every job from small paint touch-ups to major cleanups will be fast, safe and easy. And because Preval lets you use small amounts, there's no waste.

How to Use Preval

Add liquid of choice to container jar. If using paint, thin according to manufacturer's directions.

Screw power unit onto Preval container jar. If you only need to spray a small amount, any container will do. Just insert dip tube into liquid and spray.

Keep power unit upright when spraying; do not tip more than 45 degrees. For best results, keep power unit in continual motion while spraying. After use, jars can be cleaned in soap and water, or even put in dishwasher.
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Preval tech (08-14-2013)
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Old 08-13-2013, 11:22 PM
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Hey guys , I know I'm late to the party . But just in case someone searches and sees this I'd like to give a little help.
If you follow the thinning guide on the the back of the box, strain your paints , and....this is the important part!!! For the thick paints, remove the little plastic filter on the bottom of the straw. It will work flawless.
FYI I am the tech and design guy for preval . So if you have any questions don't hesitate !

Also checkout our videos on our YouTube channel .
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Old 08-13-2013, 11:36 PM
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You may get a kick out of this Mr. Preval tech. Compressor-less all aerosol repair review.

Brian
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Preval tech (08-14-2013)

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