TECAFINE® PP Rod

TECAFINE® PP is machinable polypropylene rod, a semi-crystalline polyolefin chosen primarily for chemical resistance and purity rather than load-bearing strength. It shrugs off acids, alkalis, salt solutions, and most aqueous chemistry across a wide concentration range, and it is effectively indifferent to moisture, absorbing 0.06% in 24 hours. It is also the lightest common machining stock. Mechanically it is ductile rather than stiff: 3,900 psi tensile strength, 4,500 psi flexural strength, a 165,000 psi flexural modulus, 2.1 ft-lb/in notched Izod impact, and 500% elongation at break, with a 297°F melting point.

Rod is turned into tank and pipework fittings, pump and valve components, spacers, flanges, bushings, filtration housings, plating and wet-bench fixtures, and laboratory hardware for chemical processing, semiconductor, filtration, food, and pharmaceutical work, and the material is suitable for contact with food. It can be hot-gas or extrusion welded, which makes it practical for fabricated assemblies. Machining calls for sharp, high positive rake tooling and good chip clearance, since the material is soft and inclined to smear. Heat deflection temperature is 165°F at 66 psi, creep under sustained load is significant, it becomes brittle near and below freezing, and it is not UV stabilised.