Prositan P-100 is a protein filler that provides high filling and a good body to the treated leathers. It penetrates well into the leather and offers selective filling to loose areas like flanks & bellies without affecting the chrome character of leather. Novichem Co. is the supplier and exporter of various types of leather tanning chemicals, including a wide range of powder and liquid syntans or tanning and retanning agents such as our protein filler which can be used for the production of various types of leathers, like nappa, upper, or upholstery, etc.