SOFRELINER TOUGH® S(Soft) /M (Medium) is an addition-cured silicone chairside soft lining material for dentures. With SOFRELINER TOUGH® S(Soft)/M(Medium) you can expect the relined denture surface to remain soft, smooth with less-discoloration and less-odor, taste, or chemical irritations. It offers a high tear resistance, high stain resistance and outstanding adhesion to the denture base. With two types of softness Shore-A hardness.