Vicron GCC Calcium carbonate Specialty Minerals Extenders / Fillers >> Calcium Carbonate, ground SEALANT ADHESIVE These ground calcium carbonate products are commonly used in joint compound, flooring adhesives, caulks and construction sealants. They exhibit consistent particle size, reliable absorption and superior color Ground calcium carbonate. Used in flooring adhesives, caulks and construction sealants. Exhibits consistent particle size, reliable absorption and superior color.