This defines TPE as a thermoplastic polymer material. This makes LSR a thermoset polymer material.   Because LSR cures at high temperatures, using it as an overmold material in a two-component molding system requires pairing it with high temperature thermoplastics to overcome the risk of melting or deforming the substrate. 

Mevopur™ Healthcare Bio-based Polymer Solutions provide a unique family of color and additive concentrates based on polymers with 70-95 percent bio-content and pre-tested raw materials to help reduce carbon footprint and mitigate risk. Colorant Chromatics™ Transcend™ Premier Healthcare Colorants are bright, high-temperature solutions developed specifically for medical applications. They are offered in pre-colored or concentrate form in a range of vivid opaque and transparent colors that are fully bio-compatible per ISO 10993 standards to provide ultra-high-heat resistance and performance without compromising safety.

If you want to minimize the effect, use a high concentration color in a 50-to-1 let down ratio. For coloring TPEs, GLS recommends that you use high screw speeds (100-200 rpm), high back pressure (100psi), and a higher degree of ramping of the temperatures in the barrel. However, high molecular weight polystyrenes may not mix well with the smaller molecular weights of the Kraton polymer end blocks in the TPE.

If you want to minimize the effect, use a high concentration color in a 50-to-1 let down ratio. For coloring TPEs, GLS recommends that you use high screw speeds (100-200 rpm), high back pressure (100psi), and a higher degree of ramping of the temperatures in the barrel. However, high molecular weight polystyrenes may not mix well with the smaller molecular weights of the Kraton polymer end blocks in the TPE.

Gas trapped between polymer fronts High injection pressure and melt temperature Incompatible color concentrate

Gas trapped between polymer fronts High injection pressure and melt temperature Incompatible color concentrate

Whether you’re designing an MRI machine or a handheld imaging device, Avient polymer materials will help you deliver equipment that’s functional, protective, and compliant. High-temperature Healthcare Colorants: Colorant Chromatics™ Transcend™ Avient Design

Avient Resources Colorant Chromatics PPSU Masterbatch - Colors for High Temperature Injection Molding Applications High-temperature colorants for polyphenylsulfone resin

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These additive concentrates and pre-compounds enhance hydrophobicity in injection-molded polypropylene components, delivering high-performance water, solvent, and lab solution repellency. Colorant Chromatics™ Transcend™ Premium Healthcare Colorants: These high-temperature formulations are engineered to provide vivid, biocompatible colors for medical devices. The Mevopur product line also includes color and additive concentrates based on polymers with 70%-100% bio-content and pre-tested raw materials which can help to reduce carbon footprint and offer alternatives to fossil-based grades.