Retanning agent based on modified aldehydes.
CORETAN PW/N is a resins blend that can be used instead of usual aldehydes.
Compared to them, it does not create any toxicity trouble.
CORETAN PW/N is a non-volatile product having an excellent retanning action.
It is used with good results during the retanning phase where, in combination with synthetic tannins or chrome salts, it confers to the leather fullness and a soft touch.
It can be used in percentages that can vary form 3% to 7% for the production of all kind of articles: upholstery, garment, nubuk and velour.