Posted by Dave Royal [75.81.253.97] on Friday, September 25, 2009 at 00:25:58 :
In Reply to: Re: Porous welds posted by David Sherman [24.32.202.83] on Thursday, September 24, 2009 at 23:42:04 :
may be the paint, maybe it's a zinc based coating to control rust, if so it'll play heck with any process. but if not, I agree with your second post, brass. Dave.