Socal U1 S2 Coated precipitated calcium carbonate 471-34-1 Solvay Advanced Functional Minerals Extenders / Fillers >> Calcium Carbonate, precipitated Rheology Modifiers / Thickeners >> Mineral >> Precipitated calcium cabonate Acid Absorber / Acceptor Epoxy (EP) Silyl-modified polymers Polysulfides Silicones (Si) PU - Prepolymers SEALANT >> Paste ADHESIVE Socal U1 S2 is a ultrafine coated precipitated calcium carbonate. It is a very fine, white and odorless powder. Special characteristics are the very high fineness, with roundeal regular crystals and the organic surface treatment. The very high fineness and the surface treatment are the reason why SOCAL U1 S2 is widely used in systems where slump resistance is an important requirement. In sealants and adhesives based on polysulphide, MS polymer, epoxy, butyl,polyurethane and silicon, where rheological control is required, Socal U1 S2 gives good slump resistance. PCC Ultrafine, white and odorless coated precipitated calcium carbonate. Possesses a very high fineness, roundeal regular crystals and an organic surface treatment. Used in sealants and adhesives based on polysulphide, polyurethane and silicon. Provides rheological control and good slump resistance.