Zinc Borate


Assisted by our experienced professionals and hi-tech manufacturing unit, we provide our clients with a quality range of Zinc Borate. Zinc Borate can replace antimony oxide as a synergist in plastics and rubber to enhance the activity of primary flame-retardants by stepwise releasing the radicals in a wide variety of end-use products.


Zinc Borateare is also known as ZB2335, Borate Flame Retardant.

Specification of Zinc Borate :

Chemical formula:2 Zno.3 B2O3.3.5H2O
Appearance:White amorphous powder
Bulk density(g/cm3):0.3-0.5 gm / cc
pH of filtrate of 20% aqueous:7.0 -8.0
Sieve residue (200 mesh 75 micron):0.2% max
Ignition loss (950°C):15.5% max
Zno Content:37.0% min
B2O3 Content:47.0% min