Mild neutralizing agent in the leather industry


GREIBOTAN GNT is a very mild neutralizing agent and retains simultaneously without adding weight to the leathers. Due to its special character it lowers the iso-electric point of the wetblue, improves the penetration of retanning materials, dyes and fatliquoring agents.



Base: Phenol-sulphonic acid condensate
Appearance: White powder
Concentration: 93 %
pH of a 10 % solution:
7.3 - 8.3

GREIBOTAN GNT has a strong complexing power towards chrome leathers and astringency, therefore it penetrates very rapidly, shortens the processing time and yields a fine grain. It can be used alone or in combination with neutralizing salts, such as formiate and bicarbonates.


All information quoted above is based on our experience and actual know-how but is given without guarantee and obligation. Recommendations on the application and use of our products, should be adapted to the particular working-conditions and other materials employed.