Clariant's Business Unit Polymer Additives has increased prices for its coatings products between 10 to 15 percent. The price adjustments are necessary to compensate for significant increases in raw material and transportation costs, alongside continuing high energy costs, according to the company. Clariant customers will be contacted individually regarding the specifics of the price increases as they apply to their products and regions. New prices will be effective for all deliveries as of September 15, 2010 or as contracts allow.