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Soft-touch, skin-friendly surface with excellent tactile feel and low coefficient of friction.
Outstanding adhesion to polypropylene (PP) and polyethylene (PE) without primer or surface treatment.
Good resistance to UV exposure and long-term weathering, suitable for outdoor applications.
High elasticity and recovery performance, maintaining shape integrity after repeated deformation.
RoHS-compliant and free of phthalates, heavy metals, and halogenated flame retardants.
Overmolding of automotive interior components (e.g., gear knobs, door trims, and control buttons).
Consumer electronics housings and protective grips for power tools and handheld devices.
Household appliance handles and ergonomic interfaces requiring soft, non-slip surfaces.
Medical device grips and non-critical patient-contact accessories requiring biocompatibility support.
Industrial equipment seals and gaskets where flexibility and chemical resistance to cleaning agents are required.
| Chemical Type | Thermoplastic Elastomer (TPE), SEBS-based |
| Product Form | Pellets |
| Appearance | Translucent, light amber granules |
| Hardness (Shore A) | 75 ± 3 |
| Melt Flow Rate (230 °C / 5 kg) | 12–18 g/10 min |
| Density | 0.91–0.93 g/cm³ |
| Operating Temperature Range | −40 °C to +80 °C (short-term peak up to +100 °C) |
| Key Features | PP/PE adhesion, soft-touch, UV-stable, halogen-free |
Q1: What is the primary function of Kraiburg STC8677/0 in TPE formulations?
A: STC8677/0 is a thermoplastic elastomer (TPE) grade designed to provide balanced processability and elastic performance in injection-molded or extruded soft-touch components, particularly where good flow characteristics and surface finish are required.
Q2: Is STC8677/0 suitable for overmolding onto polypropylene (PP) substrates?
A: Yes — this grade is formulated for strong adhesion to common polyolefins such as PP and PE, making it well-suited for two-shot molding applications where reliable interfacial bonding is essential.
Q3: How does STC8677/0 perform under repeated flexing or compression?
A: It exhibits excellent long-term elasticity retention and low permanent set, supporting durable performance in dynamic applications like seals, grips, and gaskets subjected to cyclic mechanical stress.
Q4: Can STC8677/0 be processed on standard thermoplastic equipment?
A: Yes — it is compatible with conventional injection molding and extrusion machinery without requiring specialized tooling or major process modifications, though optimal results depend on fine-tuning melt temperature and mold cooling parameters.
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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
