I am working on a '50 f-1. At this point, I have welded in all the patches and I am trying to get it in primer, get it running, and plod along on the remaining bodywork. For a variety of reasons, I am trying to paint this thing myself. The "problem" I have is that I don't yet own spray equipment. So - to spray the primer on - I've bought a butt load of preval sprayers. I thought this way, I could spray the first primer, and put off buying the "official" spray equipment until later. Primer in question is DP90LF Here is the question: The first 2 batches I mixed up went on very smooth, and actually has a very low gloss. If I stand right next to the truck, I can make out somewhat of a reflection. The next two batches went on with no gloss at all, and isn't nearly as smooth to the touch. Assuming one of these is correct and the other somewhat of a screw up, which is correct? I've had some "sputtering" with the 2nd group of preval's. How can I avoid it? Is this a symptom of a 3.99 sprayer? It's odd that the first couple didn't do it. Thanks for the help.
The DP90 should have the slightes satin shine to it. The second batch sounds like it did not do quite right. I won't hurt anything, but the stuff does not sand very well. Also dp90 is best over bare metal. does not stick to other painted surfaces as well. HotRob
Dp90 needs to be thinned if using as a sealer before paint, shot straight if using it over bare metal. I have never had luck using those sprayers without thinning the heck out of the paint. Instead of buying small sprayers, wasting material, and time (when you have to resand and respray), you may be better off saving your money and buy a small compressor and gun, or have a shop spray it.
I sprayed mine with a 10 dolla, airless gun from Harbor Frieght. It went on SOOOOO smooth and nice! I thinned it before I sprayed it though! xxx Brandy
You need to thin it a little I'm guessing because of the Preval sprayer. You're trying to use professional materials with a play toy / gimmick sprayer. It goes on fine / smooth & even with a pefectly uniform satin black with my gun just mixing it with the hardener. I've never thinned it. Try not to pile it on or it'll orange peel. You need to let it kick off for a few minutes before spraying it after mixing it, although I've not waited and had it be fine. You'll probably never get an even uniform finish overall with what you're doing. You could've bought a crappy gun that would've been worlds better for what a bunch of aerosol u-fillit spray bottles cost. The "LF" means lead free. Good luck
did you shake the DP well? you need a paint shaker- you cant skip mixing this stuff well its chemistry- the solids sink- and if it wasnt shaken well then you would have a higher concentration of solids in the second two batchs. thats what it sounds like to me... Tuck
I stopped doing bodywork before DP 90 came out, but the above advice is what i think happened. Your final paint job is only as good as that first coat of primer. I'd invest in a good gun and compressor, and plan to do one panel or section at a time.
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