what do coating manufacturers require of their colorant suppliers?
-- Brij Mohal: One of top requirements of coating manufactuers is good color consistency -making sure that the color of every batch of pigment dispersions meets their speicifications. As you can imagine, tight color specifications are critical for a coating company. so that it can manufacture a quliaty product. cost is also a consideration. along with ease of processing at manufacture.The pigment dispersions is made up of pigment particles suspended in the liquid media, which has a certain rheological behavior. In addition, these dispersions must mee the customer specification for how the products flows- easily,like water, or more slowly,like honey. Customers also take into consideration the tinting strength of the dispersin,which is ma measure of how much dispersion needs to be added to the formulation o produce the desired color.