Thermoplastic welding has been employed to join corrosion resistant plastic materials together for nearly 50 years. Using heat, pressure, and time to join two or more pieces together to produce a weld has created an entire industry of corrosion resistant products to a broad range of industrial end users. Products such as tanks, linings, piping systems,
scrubbers, hoods, duct, wet benches, process equipment, and machinery have been assembled as fabricated products for corrosive service using thermoplastic welding processes. While much has been documented about the success of these thermoplastic products, little is
known about the welding process of joining these uncanny materials. While many of these products store or transport corrosive and hazardous liquid and gases, little emphasis has been placed on the credentials of the welding technicians joining the sheet and piping materials.