Specialists of Shebekinskaya industrialnaya khimiya, LLC have tested the product "Evrosintan MS" — a melamine retanning agent with a strong filling power developed on domestic raw materials. The trials were carried out on crust for the article without milling; the comparison was carried out with a similar tannery product. The resulting crust was good. Touch of the crust was very close to the tannery standard. The final conclusion will be made after finishing.