Amphoteric Copolymer


GREIBOTAN AF is developed for loosely structured hides and skins to improve the fullness, light fastness and colour levelling.



Base: Copolymer based on acrylic polymer
Appearance: Viscous liquid, light yellow to light brown
Concentration: Approx. 30 %
pH of a 10 % solution:
4.5 - 6.5
Charge: Anionic
Resistance to Electrolyte:
Very good to acid, salt and alkali



This product considerably improves the chrome exhaustion and chrome fixation in the tanning. 10 % to 20 % chrome will be saved.

For retanning and filling of loosely structured hides 2 - 3 % on shaved weight is essential.

In chrome tannage the usage of 0.5 % - 1.0 % on pelt weight is required.


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.