PTFE is a form of thermoplastic resin that is resistant to practically everything. Hence, it is one of the best materials for diaphragm because of its chemical stability and resistance. PTFE diaphragms have been one of the most successful components that have lead to a breakthrough in the pump industry. They have been widely produced and are extremely successful in oil chemical industry, coal industries, paper making, weaving, food and beverage industry, pharmaceuticals and bio-processing industry.