Global Processing

PTFE Tubing Transports Corrosive Chemicals

December 13, 2010
The PTFE tubing is odorless, tasteless, non-wetting and non-leaching. Other advantages are PTFE’s ease in cleaning, anti-stick properties, resistance to extreme heat and cold and resistance to ultra violet rays. Vibration damping properties of PTFE are also excellent at both sonic and ultrasonic frequencies. PTFE is available in sizes .010- up to 4-inch O.D. The PTFE tubing is both chemical- and corrosive-resistant tubing. PTFE is used to replace glass, rubber and stainless steel because of its corrosion resistance. It is extremely resistant to the most highly corrosive chemicals such as aqua regina, hydrofluoric acid and hydrogen peroxide, just to name a few. Only molten alkali metals, such as sodium or potassium, chlorine trifluoride and gaseous fluorine at elevated temperatures and pressures will attack PTFE chemically. In addition, there is no solution that will swell or dissolve PTFE at temperatures below 570 degrees F. Only at temperatures above 620 degrees F, PTFE’s crystalline melting point, will some fluorinated lubricating oils swell PTFE.