Tire-Specific Grades

Asahi Kasei's S-SBR TUFDENE® and ASAPRENE® are ideal for tire treads. They achieve a balance of fuel efficiency and grip, which are traditionally a trade-off, and also contribute to improved wear resistance.

Tire-Specific Grades

Enhancing Fuel Efficiency, Grip, and Wear Resistance

Asahi Kasei's S-SBR TUFDENE® and ASAPRENE® are ideal for tire treads. Our proprietary modification technology enhances the reactivity with silica, improving the balance between fuel efficiency and grip. Additionally, our high molecular weight technology contributes to improved wear resistance.

Overview of Tire-Specific Grades

Features

Improved balance of fuel efficiency and grip

Excellent processability

Extensive track record of adoption

Enhanced wear resistance

Wide range of grade lineup

Physical Property Table

Grade Name Mooney Viscosity
(ML1+4, 100°C)		 Bound Styrene
(Weight%)		 Vinyl Content
(mol% in BD)		 Modification Oil Content
(phr) (*1)
BR ASADENE™ NF35R 35 0 13 - -
SBR TUFDENE™ 1000 45 18 13 - -
TUFDENE™ 2000R 45 25 13 - -
TUFDENE™ 1834 45 18 13 - 37.5
TUFDENE™ 2830 40 25 13 - 37.5
TUFDENE™ 3830 65 33 34 ○ 37.5
TUFDENE™ 3835 53 35.5 40 ○ 37.5
TUFDENE™ 4850 42.5 40 46 ○ 50
TUFDENE™ E581 71 (*2) 35.5 40 ○ 37.5
ASAPRENE™ YB03 65 0 13 ○ -
ASAPRENE™ Y530 60 26 55 ○ -
TUFDENE™ E680 71 (*2) 34 58 ○ 37.5
TUFDENE™ F3420 80 35.5 40 ○ 25
TUFDENE™ F3440 80 35.5 40 ○ 37.5

*1) Low PCA oil (SRAE or TDAE)
*2) ML(1+4) 120°C

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Applications

Asahi Kasei's synthetic rubbers are used in applications such as footwear outsoles and as raw materials for HIPS and ABS. See how they are used in each application.

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Applications