Appearance: reddish brown powder

Main use: This product is suitable for retanning of chrome tanned leather and primary tanning of full vegetable tanned leather.

Usage and dosage:

Retanning: 2.0-8.0%

Semi-vegetable tanning: 15.0-20.0%

Full vegetable tanning: 30.0-35.0%

Performance characteristics:

1. Good water solubility, fast penetration, low astringency, clear and flat leather grain.

2. Excellent filling and selective filling properties, giving leather good fullness, roundness and good leather grinding performance.

3. Give leather quercus tannin extract a unique color.