Via húmeda



Styrene malein copolymer.


Viscous liquid.



Active matter:

Approx. 34%.

pH value (1:10):

Approx. 8.


TRUPOTAN WRT is a styrene malein copolymer retanning agent.

TRUPOTAN WRT is suitable for the production of waterproof shoe upper leather.

TRUPOTAN WRT improves greatly the grain tightness.

With TRUPOTAN WRT a leather with good stand, a fine elastic grain and a pleasant handle is produced.

TRUPOTAN WRT supports extraordinarily the properties of the waterproof fatliquors and is very suitable to be used together with a TRUPOSIST®-system.


In the retanning normally between 3 and 6 % TRUPOTAN WRT, calculated on shaved weight, is utilised. The quantity applied depends on the type of leather and required fullness.

Safety and storage

When handling TRUPOTAN WRT, normal safety precautions associated with the handling of chemicals should be observed. For more specific details please refer to our safety data sheets.

TRUPOTAN WRT can be stored for up to one year, if temperatures below 5 °C and above  40 °C can be avoided. On prolonged storage or extremes of temperature TRUPOTAN WRT may exhibit some settlement which can be rectified by either warming and/or stirring the product thoroughly before use.