Could anyone help me find a pump and filter house material and/or brand name that will withstand black oxide chemistry. What are other circuit board manufacturers using? I am most interested if a board manufacturer has been able to overcome this problem without throwing lots of money at it. Vendors please contact me direct. Thanks in advance Chris Rucinski Process Engineer ################################################################ TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c ################################################################ To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TechNet <your full name> To unsubscribe: SIGNOFF TechNet ################################################################ Please visit IPC's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################