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1968 Help primer rough

logue636@comcast.net

Well-known member
Joined
Aug 5, 2008
Messages
58
Location
New Stanton Pa
My primer does not come out smouth using Dupont 2 K ureathane #421-19 activator 483-87 this is a 4 to 1 mix. I mix 4oz primer and 1oz activator. Could there be somtheing wrong, with my air pressure??
 

Mosesatm

Well-known member
Joined
Jan 18, 2005
Messages
9,009
My primer does not come out smouth using Dupont 2 K ureathane #421-19 activator 483-87 this is a 4 to 1 mix. I mix 4oz primer and 1oz activator. Could there be somtheing wrong, with my air pressure??

Sounds like it may need to be thinned or you may need a larger tip on your gun. Primer is usually pretty thick stuff.
 

admin

Staff member
Administrator
Joined
Aug 18, 2002
Messages
2,049
I was going to say the same about the gun tip size. Primers usually want 1.4 - 1.7 tips.

Is this primer an epoxy or high build primer?

What type of gun and what air pressure are you running? And how are you measuring that pressure? At the gun tip or at your compressor?

Have you shot successfully with this gun/compressor setup before?
 
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