Specialty Minerals Inc. (SMI) SERICRON® talc products can be used in coatings and construction applications where the high brightness associated with the SMI TALCRON® talc products is not required. SERICRON® talc products are produced by Barretts Minerals Inc., from an extensive deposit of high-quality Montana platy talc ore. This talc ore has good chemical resistance and in paint and coatings formulations, improves corrosion resistance, water permeability, and film integrity. SERICRON® talcs can also be used in construction products such as joint compound, adhesives, sealants, putties, caulks and other such areas where a platy particle improves spreadability and application properties while controlling overall formulation cost. This versatile line of platy talcs is available in a full range of particle sizes to satisfy formulation and application requirements.