Bentone® 128

Bentone® 128 by Elementis acts as a rheology modifier. It is a special organically modified montmorillonite clay designed for non-polar printing inks based on naphtenic and paraffinic solvents and oils. It will also gel inks containing solvent of intermediate polarity.

• It increases plastic viscosity and "yield value" of inks without excessive increase in tack and thixotropy.
• It prevents excessive penetration of the ink into porous substrates and reduces misting.
• It is specifically designed for printing inks, and unlike other gelling agents, it requires less shearing action than conventional organoclays to impart ultimate viscosity.
• It imparts particle suspension and preventing agglomeration.
• It allows the ink manufacturer to produce low tack inks at relatively high viscosity.
• It improves sharpness of printing and reproduction of printing inks.
• It prevents flooding and floating of tint colors.
• Bentone® 128 is used in coatings, paints, heatset web offset inks, sheetfed offset inks, letterpress inks, news inks, rubber base inks and ultra-violet curable inks.
• Recommended dosage level is 0.5-1.5% is sufficient for most inks.