Realgun
Commander
- Joined
- Jul 31, 2003
- Messages
- 2,484
I found this in a search on google. It is a primer on Roll and Tip and really how to do it.<br /> Roll and tip
Its the new generation air hose type powered paint guns.<br /><br />It means High Volume, low Pressure. They are about twice as efficient as the old style siphon guns. The old guns needed to creat a vaccume in front of the air cap/nozzle to lift and suck the paint up from the cup underneath it.<br /><br />The new ones either put pressure into the paint pot to force the paint up to the tip, or have the paint cup on top of the gun so it gravity feeds down to the nozzle. This requires much, much less air pressure to opperate then the old style. <br /><br />If you watch someone use the HVLP type paint gun, you won't see the huge overspray cloud like you used to.<br /><br />The concept really isn't new. It was how they'd paint big stuff in years past also. If you ever see a picture of someone holding a paint gun and carrying a remote tank that held from 2 quarts to 2 gallons in their free hand, it was a pressure pot and was the same as the new small 1 quart HVLP guns.<br /><br />With the new generation air pollution regs. commercial shops are now required to use HVLP, and the manufactureres have just made them smaller for the new market place demands. <br /><br />For a auto body shop- using 1/2 as much paint on a car or whatever, paint that can cost over $100 a quart (wholesale), and clears that cost over $140 a gallon and require $80 a quart catalyst,, they've sort of phased out the old siphon guns anyway without the new laws requiring them.What does HVLP stand for? [/QB]