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Subject: water jet and spray painted board

From: "Jeff" <jeff.heiss@...>
Date: 2011-01-10

To follow up on the "Electrical Discharge Machining plus painted board plus CNC x-y table" discussion, I would like to suggest a similar idea. What do you think of spraying a PCB with automotive spray paint and using a water jet to remove the paint. After removing the paint, the board is etched. Electric pressure washers produce 1800 psi. Hypodermic needles are available in .004". Do you think there would be enough pressure out of a .004" opening to remove the coating on the board?

Jeff