What finishing process could expose powder coated aluminum parts to fluorine?
March 2, 2009 We have a customer that put a note on an aluminum part that states “This part must not be exposed to fluorine or fluorine compounds in the manufacturing or cleaning process”. We will be punching and powder coating this part. Where may we find exposure to fluorine? Bob James powder coater – Alliance, Ohio March 5, 2009 You can get multi-metal phosphates with flourides for aluminum pretreatment. Just let your chemical rep know what you need. If your rep is on the ball you might already be using one and not even know it. Sheldon Taylor supply chain electronics Wake Forest, North Carolina First of two simultaneous responses — March 6, 2009 Being a picky chemist, fluorine is a gas, so you probably mean fluoride. And as the first response indicated, get with your chemical vendor to find out, even at the PPM level. James Watts – FL Second of two simultaneous responses — March 6, 2009 Oops! I broke my rule- read, reread, reread again before submitting the response. The aluminum
