Crosslinker for paper and paperboard

Zircote Z20 is a highly effective crosslinker for paper and paperboard.
When added to a coating colour it interacts weakly with oxygenated sites, mainly carboxyl or hydroxyl groups, on the binder molecules. The dried coating will exhibit increased water resistance, but not water repellency and the microporous structure of the coating will remain open.

Zircote Z20 is a clear, aqueous alkaline solution of stabilised ammonium zirconium carbonate with a strong ammoniacal odour containing approximately 20% ZrO₂.

CAS Number:            68309-95-5
Chemical formula:   (NH₄)₂[Zr(CO₃)₂(OH)₂]
Appearance:             Clear, colourless liquid
Packaging:                250kg drums, 1250kg IBCs, bulk tanker

Typical Chemical Analysis:

Appearance              Clear, colourless liquid
ZrO₂ & HfO₂*            19-21%
pH                              9.50 - 10.50
Specific gravity        1.36
Viscosity:                  < 10 cps

HfO₂ accounts for approximately 2wt% of this total.