PTFE = PolyTetraFlouroEthylene = Teflon (I think I spelled it correctly.) It was discovered accidently by the way. Dan Wing Marcy, NY USA imp1983@xxxxxxxx ________________________________________________________________ The best thing to hit the internet in years - Juno SpeedBand! Surf the web up to FIVE TIMES FASTER! Only $14.95/ month - visit www.juno.com to sign up today!