Appearance: yellow-brown viscous liquid

Main use: suitable for tanning of metal tanned white wet leather and retanning of various crust leathers.

Usage and dosage:

For chrome-free tanning: 2.0-4.0%, first penetrate for 60-120 minutes, then add metal tanning agent for tanning

For retanning: 3.0-18.0%

Performance characteristics:

1. It has certain tanning properties and can give leather good fullness and elasticity.

2. It has the ability to disperse collagen fibers and can promote the uniform penetration of macromolecular metal tanning agents.

3. It can effectively reduce the amount of metal tanning agents used in the tanning stage.