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Old 12-09-2013, 04:43 AM
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Saving the Olds: Still at it, could use some spray advice.

Thought I'd start a new post since the previous 'Saving the Olds' thread is/was a bit wordy.

I ended up welding the holes from the trim I removed closed. I was able to do it with a wire welder and .035 flux core. Didn't figure I was going to learn any younger. Photo 1.

Drilled a bunch of holes in an old fender and practiced first. I hammered a piece of copper pipe flat and used it as a backing via advice I read here, it worked a lot better that way.

Ended up sanding the roof all the way down to bare metal, and the rest of the car almost to bare metal as you can see in the next photos. Photos 2&3.

I used the Valspar DTM 2035 I already had to prime the metal, 2 coats. I was trying for medium coats, but I think my gun is too small for primer really?

Its an Iwata Air Gunsa AZ3 HTE2 with a 1.3 tip.


I tried to play around with the settings some, but I didn't have any primer to spare and may even only be able to do one good coat on what I have left to prime on the metal areas. So I just used thinner to get an idea of how it was spraying.

It seems to go on ok, but I feel like I have to have the gun very close to the surface, say 6 to 8 inches and I only get a wet spray pattern about 4 inches wide.

Since I haven't done a lot of spraying, I don't know if this is normal for a small tip with primer, or if I need to adjust the gun way up?

I do know its hard to keep a good over lap this way because of the narrow spray pattern, and since I'm so close to the surface any slight deviation in distance seems to have a pronounced effect.

And its comes out pretty stripy looking, Photo 4.

Kind of hard to see in the photo, but between the gas lid and the taillight is probably where you can see it best.

I guess it won't hurt the primer to be a little stripy, but I'd rather the paint didn't come out like that.

I have a gallon of spi 2k for the plastic and probably over the dtm, so I will have some material to play with a little bit to try to crank the gun up if its possible.

Or is this just what I should expect shooting primer with a 1.3 tip?

Last Photo: Todays project.

Thanks, Brandon.
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