PP

Polypropylene (PP) is a semicrystalline thermoplastic polymer offering a balance of stiffness, chemical resistance, and processability at moderate cost. It is widely used across consumer, automotive, and industrial sectors where lightweight construction, chemical durability, and design flexibility are valued—including automotive interior trim, food packaging, appliance housings, medical device components, and engineered piping systems. Engineers select PP for applications requiring good fatigue resistance, low moisture absorption, and ease of injection molding or thermoforming, though thermal and stiffness limitations constrain use above moderate service temperatures compared to engineering plastics like nylon or PPS.