Parker’s New PTFE Etched Thin Wall Liners… setting the standard in quality with Extrusion, In-Line Etching and Packaging in Dedicated, Class 10,000 / ISO 7 Cleanroom production facilities. With Parker’s new State-Of-The-Art, Best-In-Class manufacturing equipment and automated process, we deliver PTFE Etched Thin Wall Liners with high precision tolerances and an etching surface that provides superior bonding performance.