Specialty Carbon Blacks for Mechanical Rubber Goods

Ultra® Carbon Blacks:

Columbian has pioneered the production of Ultra high quality carbon blacks, which significantly reduce ash and residue. The benefits of Ultra carbon blacks include superior surface appearance and improved flex fatigue life due to enhanced dispersion and reduction of impurities. Ultra carbon blacks are best suited for high quality extruded profiles and for applications where life-extension of the rubber article is critical.

FX1001 Ultra®:

Coarse particle Ultra® carbon black with exceptional processing characteristics for extruded rubber and thin walled profiles. This carbon black exhibits superior performance in extrusion and injection molding applications.

XT1004:

High structure N700 series type carbon black with excellent extrusion and polymer extension properties. Its low surface area and structure allows compounders to increase loadings, reducing compound costs while maintaining processability.  XT1004 retards electro-chemical degradation of rubber parts and is ideal for low gloss automotive profiles.

MRG & MRG-P:

Columbian produces two oil-treated grades of N650H carbon black to improve carbon black incorporation in rubber mixing. MRG and MRG-P have 41.3% napthenic and paraffinic oil incorporation, respectively. The benefit of these grades is the ability to gain improved dispersion for internal banbury mixers and to reduce fly loss, improve housekeeping and enhance dispersion for two-roll open mill mixers.

ASTM Carbon Black for Mechanical Rubber Goods

Grade	STSA m2/g (ASTM D6556)	Oil Absorbtion, cc/100g (ASTM D2414)
Statex® N-220	106	114
Statex® N-234	112	125
Statex® N-326	76	72
Statex® N-3301	75	102
Statex® N-339	88	120
Furnex® N-539	38	111
Furnex® N-5501	39	121
Furnex® N-6501	35	122
Furnex® N-650H	34	130
Furnex® N-660	34	90
Furnex® N-683	34	133
Furnex® N-7621	28	65
Furnex® N-7721	30	65
Furnex® N-774	29	72