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WESTCO Carbon Black, N550, N650, N660, N762 & N774 Semi Reinforcing - Industrial Grades CAS#

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

SPECIFICATIONS:

ASTM Grade
N550

N650, N660, N762, N774,

*Iodine Absorption #, g/kg
37-49

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

*DSP Absorption, cc/100g
114-128

115-129, 83-97, 61-49, 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, 8.5-5.5

*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
Industrial Grade

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  • Western Reserve Chemical
  • 4837 Darrow Road
  • Stow, OH 44224

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