Heat-stabilised polypropylene (PP) from Switzerland-based Quadrant Engineering Plastic Products withstands repeated steam and autoclave sterilisation cycles thanks to its deflection temperature (HDT) >149°C under 0.455 MPa (66 psi) load. Resistant to cleaning agents, disinfectants and various solvents, the material is suitable for the fabrication of surgical trays, caddies and components routinely used in life science applications. Such parts are often difficult to produce by injection moulding, owing to their complexity and the need to use high viscosity resin, notes Quadrant in a press release.
The Proteus LSG HS PP material is supplied in plate form. The production process includes a proprietary heat-treatment phase, which increases HDT, improves machinability and optimises dimensional stability. The material is described as a cost-effective alternative to polyphenylsulphone (PPSU) in cases where temperature resistance is less critical, but resistance to repeated sterilisation cycles is still needed.
Quadrant LSG stock shapes are tested and evaluated for biocompatibility according to ISO 10993. The plates are available in white and black, and in thicknesses of 25.4, 38.1, and 50.8 mm. Standard size is 600 x 1200 mm.
Quadrant has the capability to manufacture finished parts on a made-to-order basis.