How Colorants Affect Plastic CharacteristicsICOMold
If you’re starting a custom plastic injection molding project, you’ll want to select a material with the properties most suitable for the function of your parts.
If your part design has a living hinge, for example, a Polypropylene (PP) with limited types of additives and fillers might be best. Our project engineers can discuss these things with you at the material selection stage.
But one aspect of polymer characteristics that doesn’t always get the consideration it deserves is the addition of colorant. Believe it or not, there is a whole scientific body of knowledge about the ways in which adding color to plastic can affect the behavioral properties of the plastic.
A short article by Denny Scher takes a high-level look at some of the different, and surprising, ways colorants can have an effect on plastics.