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WESTCO™ Carbon Black Semi Reinforcing – Industrial Grades CAS# 1333-86-4

These grades of WESTCOTM Carbon black are medium size semi reinforcing grades for use in a variety of industrial rubber compounds. They offer moderate tensile strength and modulus and enhance the extrusion properties and mold flow of compounds. They can be used with highly reinforcing grades to reach a balance of properties.

Packaging: 25 kg paper bags; 500kg & 1000 kg supersacks

SPECIFICATIONS:

Appearance: Black Beads/Pellets
ASTM Grade

N550, N650, N660, N762, N774

*Iodine Absorption #, g/kg

37-49, 30-42 , 30-42 , 23-31, 24-34

*DBP Absorption, cc/100g

114-128 , 115–129 , 83-97 , 61–69 , 67-77

*Heating Loss, % max.

1.5 , 1.5 , 1.5 , 1.5 , 1.5

*pH

5.5-8.5 , 5.5-8.5 , 5.5-8.5 , 5.5-8.5 , 5.5-8.5

*Ash, % max.

0.7 , 0.7 , 0.7 , 0.7 , 0.7

*325 mesh Sieve, % retained max.

0.1 , 0.1 , 0.1 , 0.1 , 0.1

*Average Pellet Hardness

20-50, 20-50, 20-50, 20-50, 20-50

*Individual Pellet Hardness, max.

90, 90, 90, 90, 90

CTAB Surface Area, m2/g

35-49 , 32-44 , 29-43 , 25-33 , 26-38

Nitrogen Surface Area, m2/g

34-46 , 31–41 , 29-41 , 26–32 , 25-35

* Actual data will be reported on Certificate of Analysis

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