Also known as “polypropene.” “poly” means “many,” while “propylene” means “a particle of propene.” Polypropylene therefore contains many particles of propene. This plastic is suitable for a wide range of applications. For example, ITB Group uses it to manufacture components for Bosch. It is important that these products are sturdy and can never break, but they must also allow for a degree of flexibility (impact resistance). PP offers the right combination of stiffness, elasticity and impact resistance.