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Re: When is a buffer the right tool for new paint?
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Posted by DAVE WILSON on August 04, 1999 at 22:39:46 from (209.102.41.187):
In Reply to: When is a buffer the right tool for new paint? posted by Marty on August 04, 1999 at 17:06:29:
What do you mean by grainy? Is it rough like it didn't have time to flow out before it set? You probably didn't have enough volume set on your fluid needle adjustment. Depending on paint, you need 40 to 60 pounds air pressure flowing at the gun. I doubt that you had too much. You also need to compensate for pressure loss due to hose restriction. Another reason for a dry finish is a reducer that is too fast for the temperature. If that is the case, use a slower reducer to let the paint flow longer. Most beginning painters are afraid of getting runs, so they don't put on enough paint. Set the fluid needle so that it comes full on with the gun trigger all the way back. If you don't have enough air to atomize this much paint, then back it down a little. You should try another coat, putting it on heavier and allowing it to flow out. Be sure to use the correct reducer for the weather. I'm assuming that you are using enamel (Alkyd, Acrylic, or urethane) Keep trying, I painted about 25 cars before I was really happy with one. Now it's almost automatic. If you still have trouble, post a list of the materials you're using and we can probably figure it out. A buffer should only be needed to remove dust nibs from the paint, that's a whole different story.
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