Other test methods are described in Appendix I. Test results reported for each pigment will measure coating properties that are heavily influenced by the choice and concentration of the pigment employed, with each test involving an essential aspect of pigment performance.(3) References to specific test methods are included in the text where ASTM methods were used. This work is intended to assist the formulator in making this important choice, by (1) suggesting procedures for comparative evaluation of pigments that are particularly suitable for use in paint laboratories, and (2) reporting the results of such an evaluation involving a broad group of organic color pigments commonly used in architectural, commercial and light-duty industrial coatings.(1,2) ![]() ![]() When organic coating formulation involves the selection of one or more organic color pigments, the performance characteristics and cost of the pigments chosen often determine, more than any other factor, the suitability of the coating for a particular purpose and its success or failure in the market.
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