Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Sinopec YH-688 Thermoplastic Elastomer SEBS

Sinopec YH-688 is a high-performance SEBS thermoplastic elastomer from the YH series, featuring excellent elasticity, thermal stability and processability. It offers superior compatibility with PP/PS, low odor, and meets FDA-compliant compound requirements. Widely used in soft-touch grips, medical tubing, and consumer goods. This grade delivers balanced mechanical properties, easy extrusion/injection molding, and enhanced UV resistance versus standard SEBS.
  • sinopec yh 688 thermoplastic elastomer sebs_cc1ee7f1
  • sinopec yh 688 thermoplastic elastomer sebs_cc1ee7f1

Features Of Sinopec YH-688 Thermoplastic Elastomer SEBS

  1. Excellent balance of elasticity and thermoplastic processability for efficient melt processing.

  2. High transparency and gloss, ideal for premium aesthetic applications.

  3. Good resistance to UV radiation and thermal aging without requiring additional stabilizers.

  4. Low extractables and compliant with FDA-relevant food-contact guidelines (subject to final formulation validation).

  5. Easy compatibility with polypropylene (PP), polystyrene (PS), and various fillers or plasticizers.

Typical Applications Of Sinopec YH-688 Thermoplastic Elastomer SEBS

  1. Soft-touch overmolding for automotive interior trim and instrument panels.

  2. Flexible grips and ergonomic components for power tools and consumer electronics.

  3. Medical device housings and non-invasive wearable components (ISO 10993-compatible formulations).

  4. Premium packaging films and sealants requiring clarity and resilience.

  5. Adhesive modifiers and pressure-sensitive adhesive (PSA) tackifiers in industrial tapes.

Specifications Of Sinopec YH-688 Thermoplastic Elastomer SEBS

Chemical TypeStyrene–Ethylene/Butylene–Styrene (SEBS) triblock copolymer
Product FormPellets
AppearanceTranslucent, cylindrical pellets with uniform size and smooth surface
Primary ApplicationsThermoplastic elastomer modification, soft-touch overmolding, PSA formulation
Key FeaturesElastic recovery >90%, melt flow rate (230°C/2.16 kg): 3–5 g/10 min
BenefitsReduced energy consumption during extrusion/injection molding; no vulcanization required
Storage ConditionsStore in cool, dry, well-ventilated area; avoid direct sunlight and moisture
Processing Temperature Range180–230°C (recommended for optimal melt homogeneity)


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