OPTIBENT 1248 is an activated layered silicate product that shows a marked thixotropic thickening effect and incorporates a yield value into systems. This yield value results in excellent anti-sagging and anti-settling properties as well as smoother workability during application. Due to its modification, OPTIBENT 1248 gives an extension of processing time and more open time, especially in white cement containing formulations. It can be used at 0.1%-0.3% and provides benefits such as thickening effects, improved stability and workability for finishing formulations.