I'm beginning to do body filler on the epoxy primer. 2 questions, 1 - how do I detect moisture in the urethane primer and also body filler? 2 - how would I remove the moisture?
If you have moisture in the filler, grind it off and start over. Seal your filler soon after it's set up to prevent moisture.
Last edited by Wayne67vert; 04/12/202312:26 AM.
Wayne 1938 1-Ton Farm Truck Stovebolt Gallery Forums 1989 Silverado 1996 Mustang GT convertible When I die, I hope she doesn't sell everything for what I told her I paid for it!
Moisture in the compressed air can contaminate primer. Are you draining your compressor regularly and using an inline filter upstream of the spray gun? Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt! There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway Love your enemies and drive 'em nuts!
If you have a moisturizer problem like here in Florida, you might try to condense the water from the air after it leaves the tank and before it enters the moisturizer filter by using a manifold of copper pipes with drains at the bottom.
Mike
1940 Chevy 1/2 Ton presently... Almost done 1940 Chevy Business Coupe... In pieces
My compressor has a moisture separator filter/regulator on it, which does a pretty good job of removing the moisture, but the air here in Alaska is generally drier than a popcorn fart. Even so, I use another filter right at the gun, and haven't had any problems with moisture in the air. A friend built a condenser setup on his compressor like Mike suggested. Another option is to put a coil of copper that the air runs through in a bucket of cold water.
If you're really concerned about moisture in primer, you would need a big oven to bake parts in. Heat will drive moisture out.
Kevin 1951 Chevy 3100 work truck Follow this saga in Project Journal Photos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together.
On the expensive side is a refrigerated air drier.
My homemade dryer is a coil of hard plastic hose. 5 or 6 turns. They are cooled by air with the bottom of the turns collecting moisture. The last turn has a drain valve on a T plumbed in.
