Other Name:Fast Extrusion Furnace Black; FEF

Carbon black N550 has smooth particle surface and high structure, resulting in best reinforcement properties among soft carbon blacks.

Application:

Carbon black N550 is used in fabric cord, tire side compound, extrusion and rolling compounds.

Usage:

Carbon black N550 is suitable for natural rubber and synthetic rubbers. N550 is easy to disperse, resulting in high enduring property, high extrusion rate, smooth surface, small expansion, high temperature resistance and high heat-conductive, high re-inforcement, high elasticity and rebounding properties. Carbon black N550 is mainly used in fabric cord of tire, tire side, extrusion and rolling compounds. Carbon black N550 is preferred to use with N660 when used in butyl rubber compounds.

CARBON BLACK N550
Iodine Adsorption No	g/kg		43±6
CTAB Absorption No Specific Surface Area	103m2/kg		35~49
Nitrogen Adsorption Specific Surface Area	103m2/kg		34~46
STSA	103m2/kg		39±9
DBP Absorption No	10-5m3/kg		121±7
DBP Absorption No (compress sample)	10-5m3/kg		77~93
Tint Strength	%		-
Heating Loss	%	≤	1.5
Ash content	%	≤	0.5
Pour Density	kg/m3		360±40
Fines	%	≤	10
PH			5~9
Impurity			NONE
45um Sieve Residue	%	≤	0.1
500um Sieve Residue	%	≤	0.001
Stress at 300% Elongation	Mpa		-0.9±1.6