Re: Re: Working with IH 2150 paint

Posted by lee on January 15, 2004 at 14:28:38 from (24.24.92.235):

In Reply to: Re: Working with IH 2150 paint posted by Geoff NY on January 15, 2004 at 08:03:10:

The can of 2150 I have says Alkyd resin which makes it an alkyd enamel. You can thin alkyd enamel with straight enamel reducer, paint thinner or naptha. Pretty sure you can even use acrylic enamel reducer to thin an alkyd but you must use acrylic enamel reducer with an acrylic. Straight enamel reducer, paint thinner or naptha will not work with acrylic enamel. Most any automotive paint store can set you up with a hardener for the 2150. Nothing real special about the IH on the can of 2150 other than the color.
Not sure if an automotive store can come up with the same color for you. They might get close. The best way to thin paint for spraying is to get a viscosity cup at an automotive paint store. The cup is like a small dipper with a hole in the bottom. Dip the cup in the paint and pull it out. The paint runs out the bottom. Generally you'll want to thin it til you are in the range 18 to 21 seconds to empty the cup. You can control the viscosity very accurately with this cheap and simple cup. Test spray til you work out gun settings (atomizing air, paint supply, gun pressure that work for you). Record these settings and viscosity and you can get back to spraying in short order. With practice you will learn to adjust the gun for varying conditions.
Spraying takes a little practice and is a bit of an art. You want a thin wet coat with no runs. Practice as much as you can. The kicker is you waste paint in practicing. Spray multiple thin wet coats rather than heavy coats. If you've never sprayed you should start with alkyds and then move to acrylics. Acrylics are more difficult to shoot properly.
Safety is an issue also as breathing atomized paint spray and vapors is a serious health hazard. The paint, thinners, reducers, hardeners, are hazardous materials. Everything is extremely flamable. The chemicals get more hazardous as you go from enamels to acrylics to epoxy type paints. The liquids are absorbed thru the skin and the vapors and spray are taken in by the lungs. Get a good book on spray painting and be sure you have the right gear and facilities to do it safely.

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