The astringent extracts of Saviotan Leather are used mostly in the traditional slow tanning made in tanks, but they can be used in fast tanning too. Thanks to their chemical characteristics, the astringent extracts provide the leather with better wear resistance. They increase the waterproofing but, at the same time, they let the sole breathes, allowing the oxygen exchange with the external.
A – liquid and powder
The traditional tannin
AC – liquid
More concentrate active substance
AS – liquid and powder
Active substance slightly modified in the ph
ASV – liquid
Very light tannin