Slippery at the molecular level, it has a relatively high coefficient of friction. Polypropylene has good fatigue resistance. Will not break when repeatedly bent and polypropylene is highly resistant to moisture absorption. Polypropylene has good chemical resistance to a wide range of bases and acids. Polypropylene has good impact resistance. Polypropylene is a good electrical insulator 20 x blue nuts, 20 x washers, 20 x M4 x 40mm bolts, pan head screws, Pantone 19-4057-TCX water resistant, anti-corrosion, weather resistant chemicals, electrical insulator, solid. APPLICATIONS: Polypropylene is a cost-effective material that offers a combination of exceptional physical, chemical, mechanical, thermal and electrical properties not found in any other thermoplastic.