High build urethane primer and lvlp gun

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PostPosted: Sat Aug 31, 2019 10:03 am
Is there any issues or concerns spraying high build urethane primer with a lvlp gun with a 1.3 tip?

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PostPosted: Sat Aug 31, 2019 12:05 pm
Other than the fact that it won't atomise properly, be porous and look like you glued beach sand to the panel?

.........Nah.
Chris



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PostPosted: Sat Aug 31, 2019 1:43 pm
Well, is it the tip size or the type of gun causing the concern?

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PostPosted: Sat Aug 31, 2019 3:25 pm
Tip size. Even an LVLP gun with 1.8mm (or bigger) should lay down high build primer well enough. With a high pressure or RP gun it's common to reduce pressure when spraying primer - if only to reduce overspray when it's often done out in the shop, rather than in the booth.
Chris

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PostPosted: Sun Sep 01, 2019 8:51 am
If you thin it a little more it'll spray fine.
JC

(It's not custom painting-it's custom sanding)



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PostPosted: Sun Sep 01, 2019 11:15 am
Thanks,
I need to buy a tip kit for my gun.
Just wanted to make sure lvlp gun wont be a issue.

I sprayed a car about 10 years ago and used a hvlp gun. Caused to much over spray.

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PostPosted: Sun Sep 01, 2019 6:38 pm
What these guys said.

I would add that 1.8 is the smallest tip if you are going to shoot build primer without reducing it.

Adding reducer decreases the amount of "build" you get and requires and extra coat or two.
1968 Coronet R/T


ACTS 16:31

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PostPosted: Mon Sep 02, 2019 3:32 pm
Cougar_guy wrote:Thanks,
I need to buy a tip kit for my gun.
Just wanted to make sure lvlp gun wont be a issue.

I sprayed a car about 10 years ago and used a hvlp gun. Caused to much over spray.


I use both and really don't notice much of a difference.
You can adjust either type with pressure and viscosities to get what you want.
JC

(It's not custom painting-it's custom sanding)

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