Vibration damping grade AR-DM series
(Elastomer AR / TPS)

Features

1. Excellent damping properties.
2. Small rebound characteristics.
3. Excellent compression set properties.
4. Excellent chemical resistance (acid, alkali).
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Properties

ARONKASEI CO., LTD.

Item Test Method Unit AR-S-4424

AR-DM-30

(※3)

AR-DM-50

AR-DM-70

(※3)

Characteristic - Standard High vibration damping
Hardness JIS K 6253 typeA point 40 31 48 70
Specific Gravity JIS K 7112 - 1.08 1.2 1.15 1.22
Melt Flow Rate ASTM D 1238 230℃×21.2N g/10min 1 5 1 1
Tensile strength JIS K 6251 MPa 4 3 5 8
Elongation % 440 475 370 354
Tear Strength JIS K 6252 kN/m 18 13 20 36
Rebound resilience JIS K 6255 % 46 10 14 10
Taber abrasion Test JIS K 6264 H22×9.8N×1000Cycle mg 996 - 462 81
Compression Set JIS K 6262 23℃×24hr % 10 - - -
70℃×24hr 39 24 17 16
100℃×24hr 53 22 23 20
Softening Temperature our method  ※1 76 98 100 121
Brittleness Temperature JIS K 7216 -54 -36 -34 -10
Mold Shrinkage
(Vertical/Flowing directions)
our method  ※2 % 0.7 / 4.1 0.7 / 2.2 0.8 / 1.6 0.5 / 1.0
Molding Method - - Injection ・ Extrusion
Drying - - unnecessary
Color - - Black Natural
Fusion strength our method  PP -
ABS - × × × ×
PC - × × × ×
PET - × × × ×
6Ny(PA) - × × × ×
PBT - × × × ×
POM - × × × ×
PVC - × × × ×
tanδ(23℃) our method  30Hz×5℃/min - 0.25 0.5 0.5 0.5
Flame Retardance UL-94 - HB equivalent HB equivalent HB equivalent HB equivalent

The values shown in the table are representative ones and not guaranteed.
The figures in the table are subject to change without notice.
Reproduction of this information without our consent is prohibited.
※1 Softening temperature measurement method: Vicat softening temperature (at temperature rise rate of 50℃/hour and load of 2.5N)was determined with a needle inserted by 1mm.
※2 Shrinkage:A film gate sheet (126mm x 126mm x 2mm)was formed (at mold temperature of 40℃ and cooling period of 40 seconds).
※3 This is a grade that is made to order and sold.

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