BK®-923
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.
☆ Easy of
incorporation. No need for polar activator or making
pregel.
☆ Consistent in rheology and
thixotropy development.
☆ Easy of
dispersion with excellent fineness.In suitable systems, it can reach 5μ or even less.
☆ Good
anti-sagging property and anti-sediment property.
☆ Can be added at any step,even can be used in post-addition to correct
the final viscosity of a certain batch.
2.Typical Properties:
|
Color
|
Appearance
|
Density
|
Moisture
(@105℃,2hrs)
|
Fineness through 200 mesh
|
Loss on Ignition
(
@1000℃ )
|
|
Light Yellow
|
Free Flowing Powder
|
1.7g/cm3
|
≤3.5%
|
≥99%
|
≤38%
|
3.Typical Applications:
|
●Acrylic
paint
|
●Solvent epoxy
paint
|
|
●Alkyd
paint
|
●Inks(mineral
oil)
|
|
●Anti-corrosion
paint
|
●Inks(Nitro)
|
|
●Bituminous
paint
|
●Adhesive
|
|
●Baking
paint
|
●Putties and
sealant
|
|
●Chlorinated
rubber paint
|
●Varnish
|
|
●None solvent
epoxy paint
|
●Nitro
lacquer
|
|
●Marine
paint
|
●Lubricating
grease
|
|
●Silica
paint
|
|
4. Incorporations:
BK
®-923 belongs to the unconventional type of organoclays group, being an
easy-to-disperse, self-activated organoclay, BK
®-923 does not require a chemical (polar) activator to reach the proper level of
delamination of the organoclay platelet
stacks.
BK
®-923 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.
5. Recommended
Levels:
The amount of
BK
®-923 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%-1.5% based on the total
formulation weight.
