Condensation of naphthalene and formaldehyde.
It helps chrome, vegetable tannin, synthetic tannin, resin tannin, fatliquor and dyestuff to disperse and penetrate uniformly in leather, also prevents over-fixing of those chemicals on the surface of leather.
As its excellent stability to electrolytes and chemicals, it could be used in each re-tanning process.
Package and Storage
Paper bag with 15kgs;
Storing condition: cool and dry;
It is suitable for all kinds of leathers and always be used together with other retannin.
Recommended amount is 1-3%.