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Excellent soft-touch feel with balanced hardness (Shore A 85–90) for ergonomic handling.
Good thermal stability and processability via injection molding, extrusion, and overmolding.
Low extractables and compliant with RoHS and REACH directives for regulated markets.
Superior adhesion to polypropylene (PP) and polyethylene (PE) substrates without primer.
Recyclable thermoplastic elastomer with no vulcanization required — supports circular material flow.
Soft-grip overmolding for power tools and hand-held industrial equipment.
Ergonomic handles and grips for medical devices and diagnostic instruments.
Sealing components and gasket profiles for automotive interior trim assemblies.
Consumer electronics casings requiring tactile feedback and slip resistance.
Reusable packaging closures and flexible hinges for durable containers.
| Chemical Type | Thermoplastic Elastomer (TPE), SEBS-based |
| Product Form | Pellets (free-flowing, uniform size) |
| Appearance | Off-white to light beige, translucent granules |
| Hardness (Shore A) | 87 ± 3 |
| Melt Flow Rate (230°C/2.16 kg) | 12–15 g/10 min |
| Density | 0.91–0.93 g/cm³ |
| Operating Temperature Range | −40°C to +70°C (continuous) |
| Key Features | Soft-touch, PP/PE bondable, halogen-free, FDA-compliant options available |
Q1: What is Kaiyin TPE 299S primarily used for?
A: Kaiyin TPE 299S is a thermoplastic elastomer modifier designed to enhance flexibility, impact resistance, and processing performance in rigid polymer systems—especially in polypropylene (PP) and polyethylene (PE) compounds. It is commonly applied in automotive interior parts, consumer appliance housings, and soft-touch overmolding applications.
Q2: How is Kaiyin TPE 299S typically incorporated into formulations?
A: It is generally introduced via dry blending or side-feeding during extrusion compounding. Due to its thermoplastic nature, it melts and disperses readily at standard PP/PE processing temperatures, enabling uniform phase distribution without requiring specialized equipment or reactive compatibilizers.
Q3: Does Kaiyin TPE 299S require drying before processing?
A: Unlike many hygroscopic engineering resins, Kaiyin TPE 299S has low moisture affinity and typically does not require pre-drying under standard ambient storage conditions. However, extended exposure to high-humidity environments may warrant a mild thermal conditioning step prior to high-precision processing.
Q4: Is Kaiyin TPE 299S compatible with common flame retardants and colorants?
A: Yes—it demonstrates good compatibility with halogen-free flame retardants (e.g., aluminum trihydrate and phosphinate-based systems) and conventional organic pigments and masterbatches. Stability during melt processing remains consistent when used within recommended temperature windows and shear profiles.
Contact With Us:
E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
