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Excellent elasticity and recovery performance across a wide temperature range (−40 °C to +90 °C).
Good processability via injection molding, extrusion, and overmolding onto PP, PS, and ABS substrates.
Low compression set for long-term sealing and gasketing reliability.
RoHS-compliant formulation with no added phthalates, heavy metals, or halogens.
Soft-touch surface finish with adjustable hardness (Shore A 30–90, customizable by grade).
Automotive interior trim components including door handles, gear knobs, and dashboard soft-touch overlays.
Consumer electronics protective cases, grips, and button actuators requiring tactile feedback and durability.
Medical device housings and non-invasive wearable components meeting ISO 10993 biocompatibility screening requirements.
Household appliance seals, gaskets, and ergonomic tool grips for power tools and kitchen appliances.
Packaging closures and dispensing components for personal care products requiring chemical resistance to alcohols and mild surfactants.
| Chemical Type | Thermoplastic Elastomer (SEBS-based) |
| Product Form | Pellets (free-flowing, uniform size) |
| Appearance | Opaque to translucent, natural or custom colorable |
| Primary Applications | Overmolding, soft-touch parts, dynamic seals, ergonomic components |
| Key Features | Elastic recovery, substrate adhesion, low odor, recyclable |
| Benefits | Reduced assembly steps, improved user comfort, compliance-ready formulation |
| Processing Method | Injection molding (melt temp: 180–220 °C), extrusion, two-shot molding |
| Storage Conditions | Keep in dry, ventilated area; avoid direct sunlight and moisture |
Q1: What is Kaiyin TPE 3XX primarily used for?
A: Kaiyin TPE 3XX is a thermoplastic elastomer modifier designed to enhance flexibility, impact resistance, and processability in rigid polymer blends—especially polypropylene (PP) and polyethylene (PE) compounds. It is commonly employed in soft-touch overmolding, automotive interior parts, and consumer product housings requiring balanced stiffness and tactile performance.
Q2: Is Kaiyin TPE 3XX compatible with standard melt-processing equipment?
A: Yes—it exhibits excellent thermal stability and shear tolerance during extrusion, injection molding, and twin-screw compounding. No pre-drying is typically required, and it processes smoothly at conventional TPE temperature ranges without significant degradation or plate-out.
Q3: How does Kaiyin TPE 3XX affect the mechanical properties of PP-based compounds?
A: It significantly improves low-temperature impact strength and elongation at break while maintaining acceptable tensile modulus and heat deflection temperature. The degree of property modification depends on loading level and base resin characteristics, but noticeable improvements are generally observed at addition levels between 0.1% and 2% by weight.
Q4: Can Kaiyin TPE 3XX be used in applications requiring regulatory compliance for food contact or skin-safe materials?
A: Kaiyin TPE 3XX is formulated without intentionally added heavy metals, phthalates, or halogenated flame retardants. While it is not pre-certified to specific food-contact or medical regulations, its composition supports development of compliant formulations when combined with suitable base resins and additives—subject to full system validation by the end-user.
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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
