Tel: 0086-571-63806068,63711876,63665132

Hangzhou Jingyi Chemical Co.,Ltd
Tel: 0086-571-63806068,63711876,63665132
Fax: 0086-571-63751569,63806098
ADD: NO.68 Huaqiao Road, Lin'an City, Zhejiang Province, China PC:311300
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Products Specifications:
BK®-500B is an organoclay (tetraallkyl ammonium bentonite) for solvent-based systems of low,medium and high polarity.
1.      Advantages:
High gelling efficiency over low, medium and high polarity organic liquids.
Produce reproducible thixotropic consistency over a wide temperature range.
High viscosity and excellent thickening property over a wide temperature range.
Imparts particle suspension, preventing hard settling of pigment and fillers.
Exerts strong film reinforce action in organic binder systems.
High purity:high percentage of montmorillonite,free cristobalite <1%.
High efficiency:save 30%dosage compared with ordinary grades.
Good dispersion:self-activated in medium/high polar system.Its fineness can reach 10μ or even less.
2.      Typical Properties:
Color Appearance Density Moisture
Fineness through 200 mesh Loss on Ignition
( @1000 )
Light Yellow Free Flowing Powder 1.85g/cm3 3.5% ≥99% ≤45%
3.      Typical Applications:
Acrylic paint Solvent epoxy paint
Alkyd paint Wooden paint
Baking paint Zinc-rich paint
Decorative paint Inks(mineral oil,vegetable oil)
Industrial paint Varnish
Marine paint Lubricating grease
Non-solvent epoxy paint Cosmetics
Polyester paint  
4.      Incorporations:
BK®-500B belongs to the unconventional type of organoclays group, being an easy-to-disperse, self-activated organoclay, BK®-500B does not require a chemical (polar) activator to reach the proper level of delamination of the organoclay platelet stacks. 
BK®-500B can be added at any point in the manufacturing process. If addition is made with polar activator or after grinding,better performance can be expected.
Polar Activator: Dosage of polar activator( such as propylene carbonate, 95%ethanol , acetone or 95% methanol) is 20%-30% by weight of BK®-500B.
It is always recommended to determine the proper level of addition by experiment.  Either defect or excess of chemical activator would result in poorer viscosity development.
5.      Recommended Levels:
The amount of BK®-500B rheological additive required depends upon the type of organic system and the degree of thickening or other properties desired. Addition levels are typically between 0.2%-0.8% based on the total formulation weight.
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