CP-EWS Modified Bentonite for Water Borne System
CP-EWS is modified bentonite. It is used in water-borne system. Compared with CP-EW, CP-EWS has better performance of thixotropy, transparence and dispersion.
Properties of CP-EWS Modified Bentonite for Water Borne System
Composition Inorganic modified montmorillonite clay
Appearance Fine powder, white
Moisture content (105℃,2hr) ≤10%
Bulk density 0.40~0.60g/cm3
Viscosity, 3% in water, mPa.S ≥3000
Fineness (<74μm, %) ≥98%
Advantages of CP-EWS Modified Bentonite for Water Borne System
- High gelling effectiveness, CP-EWS can form gel even at 2% in water
- Easy dispersing.
- Gel is transparency and of light color
- Prevents pigment Settling
- High thixotropy, Good anti-sag property
Application of CP-EWS Modified Bentonite for Water Borne System
CP-EWS is used in the following applications:
- Industrial water-reducible paint
- Antiseptic
- Toothpaste and tooth polish
- Cream and Lotions
- Emulsion paint
- Pigment and blung water
- Water-born sealant, adhesive
- Ceramics
Using
CP-EWS it can be added directly in powder, with its addition to be 0.2~3.0%. Procedures are as follow.
- water (PH:7.0-8.0)
- CP-EWS (Dispersing at high speed for 20-30minutes)
- Additive
- Pigment and filler (Mixing and dispersing)
- Emulsion (Mixing).
- Post correct.
How to Use CP-EWS Modified Bentonite for Optimal Performance
- Pre-Dispersion Preparation
Add CP-EWS to the water-borne system under low-speed stirring (300–500 RPM) to avoid agglomeration.
For best dispersion, pre-blend CP-EWS with inert pigments/fillers (e.g., titanium dioxide, talc) before adding to the aqueous phase—this reduces clumping.
- Stirring & Activation
Increase stirring speed to 800–1,200 RPM after initial wetting to break down any remaining aggregates.
Stir continuously for 15–20 minutes to ensure uniform distribution; avoid over-stirring (may reduce thixotropic efficiency).
- Dosage Recommendations
Typical dosage: 0.5–2.0% of total formulation weight (adjust based on desired viscosity and thixotropy).
Start with a lower dosage (0.5–1.0%) and increment gradually to avoid excessive thickening.
- Compatibility & Timing
Add CP-EWS before adding thickeners, biocides, or other rheological additives to prevent interference.
Ensure the system pH is 7.0–9.0 (optimal for bentonite activation); adjust with pH modifiers if needed.
- Post-Addition Handling
Allow the formulation to “age” for 30–60 minutes after mixing to fully develop thixotropy and transparency.
Avoid high-temperature exposure (>60°C) during processing—may degrade dispersion stability.
Key Notes
Follow dosage guidelines to maintain formulation clarity and application properties.
For high-solids systems, pre-disperse CP-EWS in a small portion of water first for better integration.
Focusing on practical steps to maximise thixotropy, transparency, and dispersion—core performance attributes of CP-EWS.
Safety
All safety information is provided in the Material Safety Data Sheets for Zhejiang Camp-Shinning New Material Co.,Ltd..
Package
Kraft paper bag with PE liner or multi-wall paper sacks or customized. 25kg/bag or 22.68kg/bag or customized
Storage
CP-EWS has a shelf life of 2 years, and should be stored in ventilated cool and dry place.
Notice
The information on use is based on data which are believed reliable, but any recommendation or suggestion made is without guarantee or warranty, since the conditions of use are outside our control. All products are sold on the conditions that purchasers shall make their own tests to determine the suitability of such products for their purpose and that all risks are assumed by user. We disclaim any responsibility for damages resulting from careless or improper handling or use. Nothing herein is to be taken as permission, inducement or recommendation to practice any patented invention without a license.
