John, My list of Pros and Cons comes from experience I believe we've used 'em all.... a. ESD Tile Flooring Pro: Looks real spiffy Con: Cost more than you can imagine b. ESD Wax, over cement flooring Pro: Low cost Con: Maintenance c. ESD Paint, over cement floor - with or without wax. Pro: Cheaper than tile Con: Costs more than wax/maintenance We use unfinished (no wax or paint) bare concrete in our assembly/manufacturing area. When the environment is kept within 20-70% humidity, our typical flooring resistivity is 10 to the 5th Ohms/sq which is great to dissipate a charge to ground. It doesn't look as sharp as the ESD tile we have in another area, but it didn't cost us a dime either. Steve McBride Frontier Engineering Inc. *************************************************************************** * 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] * ***************************************************************************