STERLING® NS-1

STERLING® NS-1 by Cabot is a 100% carbon black pigment (in the class known as Semi-Reinforcing Furnace (SRF) carbon blacks). It has low surface area as ASTM N772 and N762 type carbon blacks, but with a higher structure reflected by the higher OAN and C-OAN. It exhibits better dispersion, higher modulus, viscosity and lower die swell compared to ASTM N772 and N762 type carbon black but requires slightly lower carbon black loadings for the same hardness. It generates relatively little heat in processing and contributes to reduced permeability and reduced compound cost. It is suitable for industrial rubber products such as seals & gaskets, windscreen wiper blades, anti-vibration and engine mountings and hose linings and other extruded articles. It conforms to ASTM N774 carbon black target values. STERLING® NS-1 is used in tire tubes and inner-liner compounds.