Skip navigation

Ammonia free crosslinker for paper and paperboard

Zircote K1000 is a highly effective crosslinker for paper and paperboard coatings.
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 K1000 is an odour free, water soluble alkaline solution of stabilised potassium zirconium carbonate containing approximately 20% ZrO2.

CAS Number:                 23570-56-1
Chemical formula:        K2[Zr(CO3)2(OH)2]
Appearance:                  Clear colourless liquid
Packaging:                     250kg drums, 1500kg IBCs, bulk tanker

Typical Chemical Analysis:

ZrO2 & HfO2*                 19-21%
pH                                   11.0 – 12.0
Specific gravity             1.55
Viscosity                        < 10 cps

HfO2 accounts for approximately 2wt% of this total.