BK-138 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, especially in 200#solovent oil, coal tar, aromatic compounds.
☆ 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.
2. Typical Properties:
| Color |
Appearance |
Density |
Moisture
(@105ºC,2hrs) |
Fineness through 200 mesh |
Loss on Ignition
( @1000ºC ) |
| white |
Free Flowing Powder |
1.7g/cm3 |
≤3.5% |
≥98% |
≤38% |
3. Typical Applications:
| Alkyd paint |
Zinc-rich paint |
| Anti-corrosion paint |
Inks(mineral oil) |
| Bituminous paint |
Inks(Nitro) |
| Chlorinated rubber paint |
Adhesive |
| Marine paint |
Putties and sealant |
| None solvent epoxy paint |
Lubricating grease |
| Primer paint |
Oil drilling mud |
| Road paint |
Waster water treatment |
| Silica paint |
|
4. Incorporations:
BK-138 belongs to the unconventional type of organoclays group, being an easy-to-disperse, self-activated organoclay, BK-138 does not require a chemical (polar) activator to reach the proper level of delamination of the organoclay platelet stacks.
BK-138 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-138 rheology modifier required depends upon the type of organic system and the degree of thickening or other properties desired. Addition levels are typically between 0.1%-0.8% based on the total formulation weight.
6. International Countertypes: Bentone®34, Bentone®38, Bentone®27
Audited Supplier 
Audited Supplier 
){kind=link}
){kind=link}