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Thermoplastic elastomer (TPE) formulation offering excellent melt processability in standard injection molding and extrusion equipment.
Good low-temperature flexibility with a typical brittle point below –40 °C.
Enhanced UV and thermal stability for improved long-term performance in outdoor and under-hood applications.
Low compression set, supporting reliable sealing and resilient part recovery after deformation.
Compatible with polypropylene (PP) substrates for overmolding without adhesive primers.
Automotive interior trim components, including soft-touch armrests and control knobs.
Sealing systems for HVAC ducts and fluid-handling connectors.
Consumer appliance grips and ergonomic handles requiring tactile comfort and durability.
Industrial tool overmolded grips with vibration-damping properties.
Medical device housings where biocompatibility-compliant processing and chemical resistance are required.
| Chemical Type | Thermoplastic Elastomer (TPE), Styrenic Block Copolymer (SBC)-based |
| Product Form | Pellets |
| Appearance | Off-white to light beige, free-flowing pellets |
| Primary Applications | Overmolding, soft-touch components, dynamic seals |
| Key Features | Good PP adhesion, low compression set, UV-stabilized |
| Benefits | Reduced assembly steps, enhanced part longevity, recyclable thermoplastic processing |
| Processing Method | Injection molding, extrusion, two-shot molding |
| Regulatory Compliance | Meets FDA 21 CFR §177.2600 for food-contact applications (when processed per specification) |
Q1: What is the primary function of TPE 8221-55M300 in thermoplastic elastomer formulations?
A: TPE 8221-55M300 is a high-performance processing aid and viscosity modifier designed to enhance melt flow, improve surface finish, and reduce extrusion pressure in styrenic block copolymer (SBC)-based TPE compounds.
Q2: Is TPE 8221-55M300 compatible with common SBC base resins such as SEBS and SIS?
A: Yes, it exhibits excellent compatibility with a broad range of styrenic thermoplastic elastomers, including SEBS, SIS, and their hydrogenated derivatives, and is typically incorporated during compounding without phase separation or blooming issues.
Q3: How should TPE 8221-55M300 be incorporated into a TPE formulation?
A: It is most effectively added during the masterbatch stage or dry-blended with polymer pellets prior to extrusion; dosage depends on formulation requirements but generally ranges from 0.1% to 2% by weight for optimal processing benefits.
Q4: Does TPE 8221-55M300 affect the final mechanical properties of the compounded TPE?
A: When used within recommended dosage levels, it maintains key performance attributes—including tensile strength, elongation, and hardness—while significantly improving processability; minor adjustments to formulation may be needed to fine-tune end-use behavior.
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
