Appearance: white crystal

Main use: used in primary tanning or retanning, and can also be used as a fixing agent for waterproof leather.

Usage and dosage: Color fixation: 0.3-1.0%

Retanning: 2.0-6.0%

Waterproof fixation: 1.0-6.0% (used alone or in combination with chrome powder)

Performance characteristics:

1. It can be used alone for tanning, or for chrome retanning, and the finished leather is firm and the grain is smooth and delicate.

2. Improve the ability to absorb dyes and give the leather a full color tone.

3. Used for retanning of suede leather to improve the leather buffing properties and obtain uniform, fine and short nap.