I have been told recently that a board shop is producing teflon plated thru circuit boards without using a tetra etch and using only a permanganate. Is this possible? I have always understood that unless you tetra etched the material, you could not get good hole wall bond. Does anyone have any information in this? Ed Cosper *************************************************************************** * TechNet mail list is provided as a service by IPC using SmartList v3.05 * *************************************************************************** * To subscribe/unsubscribe send a message <to: [log in to unmask]> * * with <subject: subscribe/unsubscribe> and no text in the body. * *************************************************************************** * If you are having a problem with the IPC TechNet forum please contact * * Dmitriy Sklyar at 847-509-9700 ext. 311 or email at [log in to unmask] * ***************************************************************************