Hydrogenated Styrenic Thermoplastic Elastomer (SEBS) Tuftec™ P5051

Asahi Kasei Tuftec™ P5051 is a selectively hydrogenated polymer. It is used as a compatibilizer of PS and PP blends or as an impact modifier of GPPS, HIPS and PPE.


Physical Form

  • Supplied as a dusted, dence pellet

Features and Benefits

  • PS/PP alloy compatibilizer
  • Excellent impact modifier for PS and PPE


  • Regulation (EU) No 10/2011


Property Test Method Unit Value
Density ISO 1183 g/cm3 0.94
MFR 190°C, 2.16kg Load ISO 1133 g/10 min 4.0
Durometer Type A
ISO 7619 °Shore A 93
Tensile Strength
Dumbbell: Type 1A 500 mm/min
ISO 37 MPa 31.0
Dumbbell: Type 1A 500 mm/min
ISO 37 % 700
300% Tensile Stress ISO 37 MPa 7.0
Styrene / Ethylene-Butylene Ratio Asahi Kasei Method 47/53

Please note that all data and values are given as typical results obtained with the indicated test methods for purposes of basic reference in grade selection only, and not as any product specification or warranty of any nature, and are subject to change without notice.

Please refer to Terms and Conditions and Privacy Policy


We, Asahi Kasei Group, request that customers who are considering using our products in medical, pharmaceutical, cosmetic and other related applications (hereinafter collectively called “Medical Applications”) shall contact us and confirm our policy on Medical Applications in advance. Information herein regarding conformity to certain laws and regulations are as of January, 2015. Please consult with us for the latest status. We make no guarantees or warranties, express or implied, concerning the suitability of our products for use in Medical Applications. It is not our responsibility to determine if our products are safe, lawful, and technically suitable for intended applications.