https://www.avient.com/sites/default/files/2020-10/luxury-closures-gravi-tech-design-guide-2.0-application-specific.pdf
can achieve various aesthetic appearances using Gravi-Tech material such as color
GT6000-5002 GRAVI-TECH GT7300-5007 Specific Gravity* 2.0 3.0 2.0 2.5 2.6 2.2 Color
provides additional mixing to the melt, which is especially helpful when using colorants