Polypropylene (PP) is used in various injection molding applications such as automotive products, household appliances, crates, toys, thin walled packaging, furniture and bottles. Common processing temperatures for polypropylene range from 220 – 250 °C.

Thermal and Processing Stability

In order to guarantee an optimum balance between melt flowability during processing and toughness for the final application, polypropylene has to be stabilized adequately,  particularly at high recycling rates. Ciba® IRGANOX® B blends offer good processing and thermal stability in less demanding applications.

Light Stability

For injection molded articles in outdoor applications Ciba® TINUVIN® 783 in combination with Ciba® TINUVIN® 326 are recommended to prevent light-induced polymer degradation.

The Ciba® IRGASTAB® NA range offers nucelating agents, which improve the thermal and mechanical properties of PP as well as the dimensional stability of injection molded articles and enable wall thinning, reduced cycle-time and less scrap. Ciba® IRGASTAT® permanent antistat and Ciba® IRGAGUARD® antimicrobials offer further value to the polyethylene in injection molding applications.

To incorporate additives efficiently, we offer Customer Specific Blends in various product forms. For more information, please contact us.