Color: Carbon black imparts coloristic attributes such as jetness, undertone, opacity and additional traits such as gloss. Tint: Carbon blacks have the capacity to darken another pigment.UV Protection: Pigment Carbon Black having a primary particle size of 19 to 20 nm, when adequately loaded offer an optimal combination of UV protection and dispersibility in polymers. Sag Resistance: Sag resistance refers to the ability of pigment blacks to prevent the adhesive/sealant compound from flowing or dripping once the compound is applied onto a substrate. It is an important thixotropic characteristic that allows the compound to be easily handled and applied right where it is needed and have it stay there. Conductivity: Specially produced pigment blacks impart electrical conductivity to polymeric systems since their addition provides a path for the electrons to travel. Generally, a dielectric substance such as a plastic can be made static dissipative or conductive by the addition of sufficient pigment black. Jetness: Jetness is the intensity of the blackness that carbon black imparts to a polymer substrate. It depends on particle size, concentration and the thickness of the matrix. Mass Undertone: Mass undertone is a critical part of the color specification for opaque articles colored with pigment blacks. Undertone is the hue observed under the main color. Different grades of pigment blacks can exhibit varying degrees of blue to yellow undertone. Tint Undertone: Tint undertone is observed in materials that are dosed with small amount of carbon black pigment and white pigments to impart grayness. Pigment blacks with larger particle size impart a bluish hue in such applications. Polar Resins: Polymer systems that are inherently polar such as polyamides, polyurethanes and polyvinyl chloride are more compatible with pigment blacks that have relatively higher levels of surface oxide groups such as with gas blacks and after-treated pigment blacks
