Chem impex usha pvt. Ltd. Offers micraflo which has a regular shape and controlled size distribution which results in both improved accuracy of colour addition when metering volumetrically and a more uniform dry blend from a batch mixing process. Micraflo, in 1997 introduced "clean and free flowing" colorant for the rigid pvc industry using dry pigment blends. The need to improve factory hygiene and reduce equipment clean down costs has led to an increased use of "clean and free flowing" pigment dispersions. Dispersions can be based on wax or polymeric type carriers, each having particular effects. This system has a significant effect on both the melt rheology and the products physical properties.