Rheological Additive for Water-Based System

Model NO.: BK-887L
BK-887L is a modified bentonite for water-based systems

1. Advantages:
☆ High gelling efficiency in water-based systems. Can replace traditional  cellulose ether thickening agent.
☆ Excellent thixotropy property, sag resistance and viscosity control.
☆ Prevent hard settlement of pigment/fillers.
☆ Ease of incorporation and Ease of dispersion.
☆ Suite to wide PH range.
☆ Good corrosion resistance and stable viscosity in different temperatures. Good bio-stability and heat resistance.
☆ Has apparent level limitation.Viscosity increases dramatically when exceeds certain amount.

2. Typical Properties: 
Color Appearance Density Moisture
(@105ºC,2hrs) 		Fineness through 200 mesh PH value
(2%suspension )
Light White Free Flowing Powder 1.6g/cm3 ≤10.0% ≥99% 8.5-10.5
 
3. Typical Applications: 
Water-based paint&coatings
Emulsion paint
Adhesive
Sealant
Cosmetics
Toothpaste
Grout
 
4. Incorporations:
BK-887L can be added directly in powder form. No need for polar actiator or pre-gel. Recommended procedures are as follows:
 
A.  Water.
B.  BK-887L(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-887L 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

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