The PP, polypropylene, is transparent and present a good chemical resitance. It has a good resistance to the fatigue so can be use in prototyping. It has the lowest density. PP has a particularly high melting point, so it requiers a 3D printer with a heated bed.
Verbatim PP is a high heat-resistant 3D printer filament that was engineered for reliable and high-quality prints. It is manufactured to very tight tolerances, to ensure consistent filament feeding during the printing process and stable prints to finish. This filament is used for a wide variety of industrial projects including tooling and prototyping.