BK®-887 is a modified bentonite for water-based systems
1. Advantages:
ˇî High gelling efficiency in water-based systems.
ˇî Excellent thixotropy property, sag resistance and viscosity control.
ˇî Prevent hard settlement of pigment/fillers.
ˇî Ease of incorporation and Ease of dispersion.
ˇî Suite to wide PH range.
2. Typical Properties:
|
Color
|
Appearance
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Density
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Moisture
(@105ˇć,2hrs)
|
Fineness through 200 mesh
|
PH value
(2%suspension )
|
|
Light White
|
Free Flowing Powder
|
1.6g/cm3
|
≤10.0%
|
≥95%
|
9-12
|
3. Typical Applications:
|
ˇńWater-based paint&coatings
|
|
ˇńEmulsion paint
|
|
ˇńAdhesive
|
|
ˇńSealant
|
|
ˇńCosmetics
|
|
ˇńToothpaste
|
|
ˇńGrout
|
4. Incorporations:
BK®-887 can be added directly in powder form. No need for polar actiator or pre-gel. Recommended procedures are as follows:
A. Water (PH:6.0-12.0, but most suitable between 7.0-8.0).
B. BK-887 (Dispersing at high speed shear for 15-30minutes).
C. Other additives (film-forming agent,dispersing agent,defoaming agent, etc.)
D. Pigment and filler (Mixing and dispersing).
E. Emulsion (Mixing).
F. Post correct.
5. Recommended Levels:
The amount of BK®-887 rheological additive required depends upon the specific system and the degree of thickening or other properties desired. Addition levels are typically between 0.2%-1.0% based on the total formulation weight.
6. International Countertypes:Bentone®EW/LT,Laporte®WH,Attagel®-50