Santoprene® TPV 121-75M200

Santoprene TPV 121-75M200 is a soft, black, UV resistant thermoplastic vulcanizate (TPV) in the thermoplastic elastomer (TPE) family. This material is specially formulated with high flow properties and excellent aesthetics for use in injection molded parts such as automotive glass encapsulation. This grade of Santoprene TPV is shear-dependent and can be processed on conventional thermoplastics equipment for injection molding.

Key Features:

• Designed for fast, easy injection molding, especially for complex part geometries
• Designed to be injected at lower molding temperatures or at lower injection pressures
• Designed with higher gloss to allow for a wider range of gloss tailoring via mold surface
• Recommended for applications requiring superior part surface appearance with minimal to no flow defects or tiger stripes

Processing Form:

• Injection Molding
• Multi Injection Molding

Processing Notes:
Desiccant drying for 3 hours at 80°C (180°F) is recommended. Santoprene® TPV has a wide temperature processing window from 175 to 230°C (350 to 450°F) and is incompatible with acetal and PVC.

Santoprene TPV has a relatively high melt viscosity at low shear rates. Viscosity decreases as the shear rate increases. Increasing temperature has little effect on TPV melt viscosity. Smaller gates and higher shear rates keep melt viscosity low and improve melt flow. Please also refer to the injection molding guide.