How to Test Organoclay Suspension in paints & Coatings?

Organoclay Suspension Test Method for Coatings | Anti-Settling Performance Evaluation (CP-10).

What is Suspension Performance in Coatings?

In coating and paint systems, suspension performance refers to the ability of a formulation to prevent pigment and filler settling during storage.

A high-performance organoclay forms a stable three-dimensional gel structure, which helps:(How to Test Organoclay Suspension)

• Keep pigments uniformly dispersed
• Prevent hard sediment formation
• Maintain consistent viscosity over time

For formulators, suspension performance is a key factor affecting storage stability and application consistency.

Scope of This Suspension Test Method (How to Test Organoclay Suspension)

This test method is specifically developed for evaluating the anti-settling performance of Organoclay CP-10 in coating systems.

It is applicable to:

• Solvent-based coatings
• Industrial paints
• Pigment dispersion systems

👉 This method introduces 12-hour suspension volume measurement (ml/12h) as a practical indicator of stability.

👉 Traditional viscosity tests (such as xylene viscosity) are not sufficient alone to evaluate long-term suspension behavior in coatings.

Technical Specification for Coating Application

Reference:
Standard sample suspension value: 48 ml/12h

Suspension Test Method for Coatings (CP-10) (How to Test Organoclay Suspension)

Equipment

• 100 ml graduated cylinder (accuracy 0.01 ml)
• High-speed disperser
• Electronic balance (accuracy 0.001 g)

Materials

• Solvent (e.g., WS-3040 or equivalent coating solvent)
• 95% Methanol (activator)
• Standard Organoclay CP-10 sample

Step 1: Preparation of Organoclay Gel

• Add 98 g solvent into a container
• Slowly add 1% organoclay under 1000 rpm, disperse for 2 minutes
• Add 1% methanol activator
• Increase speed to 1500 rpm, mix for 10 minutes

👉 After dispersion, cool to 20–25°C

Step 2: Static Suspension Test

• Transfer the dispersion into a 100 ml cylinder to 50 ml mark
• Seal and keep on a stable surface without vibration
• Record suspension volume after 4, 6, and 12 hours

👉 The 12-hour suspension volume (ml) is used as the final result

Acceptance Criteria

• Acceptable range: 43–48 ml/12h
• Compare with standard sample to ensure consistency

Appearance Evaluation

• Place sample and standard sample powders on white paper
• Flatten evenly
• Observe under natural light

👉 Color should be consistent between batches

Why Suspension Performance Matters in Coatings

In real coating applications, poor suspension leads to:

• Pigment settling during storage
• Hard sediment difficult to redisperse
• Color inconsistency
• Reduced shelf life

Using high-quality organoclay like CP-10 helps achieve:

✔ Excellent anti-settling performance
✔ Stable viscosity over time
✔ Improved storage stability
✔ Better application consistency

Suspension vs Viscosity: What’s the Difference?

Many formulations rely only on viscosity testing, but:

• Viscosity = flow resistance under shear
• Suspension = stability under static conditions

👉 A coating can have high viscosity but still suffer from pigment settling.

That’s why suspension testing provides a more realistic evaluation of long-term stability.

Quality Control & Production Requirements （How to Test Organoclay Suspension?)

• All batches must meet 43–48 ml/12h suspension range
• Products outside this range are not released

If there are changes in:

• Raw materials
• Production process

👉 Customer validation is required before shipment

CP-10 is a kind of organo clay rheological additive. It is used in systems of non-polar to medium polarity aliphatic and other solvents (ketones, ester, ether esters, alcohols, aromatic). 

Properties

Composition                      Organic derivative of a montmorillonite clay

Appearance                       Fine powder,white

Moisture content (105℃,2hr)         ≤3.5%

Loss on ignition (1000℃)            30%-34%

Bulk density                       0.35~0.45g/cm3

Fineness (<74μm, %)               ≥98%

Dispersion fineness (μm)            ≤40

Advantages

• High efficiency
• The gel is of light colour and high clarity
• Easy to use, no need to pregel
• Eliminate polar activator
• Consistent development of rheology
• Can be used to post correct

Application

 CP-10 is used in the following applications:

• Paints
• Putty
• Sealants &adhesives
• Inks
• Cosmetic
• Nano-composite

Need Organoclay for Coatings?How to Test Organoclay Suspension?

We supply high-performance organoclay for coatings and paints, designed for excellent suspension and anti-settling behavior.

👉 Contact us for samples, formulation support, or technical data.

Email:  [email protected]       

Whatsapp: 0086-13185071071

How to Test Organoclay Suspension?we hope our info could helpful with you.

Organoclay Anti-Settling Agent

Organoclay Suspension CP-10  Performance: 12-Hour Anti-Settling Test Results
Why Suspension Matters in Coating Formulations
In water-based and solvent-based coating systems, pigment settling and filler separation are among the most common quality issues manufacturers face. When particles settle during storage or transport, it leads to:

Inconsistent product viscosity batch to batch
Color variation in final applications
Poor film formation and uneven coverage
Customer complaints and product returns
Suspension stability is critical for maintaining rheological control throughout the product lifecycle—from manufacturing to end-user application.

Our Organoclay Anti-Settling Agent CP-10 Organoclay Suspension Test
To verify the anti-settling performance of our organoclay CP-10, we conducted a controlled 12-hour suspension test using industry-standard procedures.

Test Method
Gel Ratio:

WS-3040 (Solvent): 98g
Organoclay Anti-Settling Agent CP-10: 1g
95% Methanol: 1g%
Procedure:

Add Organoclay Anti-Settling Agent CP-10 while stirring at 1000 rpm
Disperse for 2 minutes
Add methanol as polar activator
Mix thoroughly at 1500 rpm for 10 minutes
Transfer 50 ml dispersion into 100 ml graduated cylinder
Observe and record suspension volume at 2h, 4h, 6h, and 12h intervals
Test Results
Sample Batch No. 2h 4h 6h 12h Notes
CP-10 20230923 38 ml 34 ml 37 ml 38 ml —
CP-10 251218 44 ml 46 ml 43 ml 42 ml —
CP-10 25022101 35 ml 34 ml 32 ml 31 ml vs B38 Standard
CP-10 25081001 50 ml 50 ml 48 ml 48 ml —
CP-10 2602253# 40 ml 38 ml 37 ml 36 ml —

Key Findings
1. Excellent Long-Term Suspension Stability
After 12 hours of standing, our CP-10 organoclay maintained suspension volumes ranging from 31-48 ml out of the initial 50 ml dispersion.

Organoclay Anti-Settling Agent

This demonstrates:

Minimal settling over extended periods
Consistent rheological behavior throughout storage
Superior anti-sagging performance in vertical applications
2. Batch-to-Batch Consistency
All tested batches showed stable suspension performance:

Sample 25081001: Best overall—maintained 48 ml (96% retention) after 12 hours
Sample 251218: Strong performance—42 ml retention with slight fluctuation
All samples showed less than 20% volume change from initial readings
3. Comparison with Industry Standard
Sample 25022101 was tested alongside B38 industry standard. The results show our Organoclay Anti-Settling Agent CP-10 performs comparably to established market benchmarks, with consistent thixotropic response and suspension stability.

What This Means for Your Coatings
Applications Where Suspension Matters Most
Organoclay CP-10 provides essential rheology modification for:

Organoclay Anti-Settling Agent

Application Benefit
Architectural Paints Prevents pigment settling during storage
Industrial Coatings Maintains consistent viscosity in high-solids formulations
Wood Coatings Ensures uniform film formation
Metal Primers Keeps anti-corrosion pigments suspended
Decorative Paints Prevents color separation and shading variations
Formulation Recommendations
For optimal suspension performance in your coating systems:

Addition Level: 0.5-2.0% depending on desired viscosity

Mixing Protocol:

Add CP-10 at 1000 rpm under shear
Increase to 1500 rpm for full dispersion
Maintain mixing for 10-15 minutes
Add polar activator (methanol or water) if required
Compatibility: CP-10 works in solvent-based, alkyd, and modified coating systems

Technical Specifications: CP-10 Organoclay
Property Value
Appearance Light cream powder
Moisture ≤3.0%
Particle Size ≤75 μm
Bulk Density 400-600 g/L
Application Solvent-based coatings, inks, adhesives
Addition Level 0.5-2.0%
Activation Polar activator recommended
Quality Assurance
Every batch of Camp-Shinning CP-10 undergoes rigorous suspension testing before release. Our quality control process includes:

12-hour suspension protocol (industry standard: 4-6 hours)
Color consistency verification against reference standards
Particle size distribution analysis
Rheological performance testing
Conclusion
The 12-hour suspension test results confirm that our organoclay CP-10 delivers reliable anti-settling performance across multiple production batches. With 96% suspension retention in the best-performing sample and consistent results across all batches, CP-10 provides:

✓ Long-term storage stability
✓ Batch-to-batch consistency
✓ Superior rheological control
✓ Compatible with various coating systems

Get Started with Camp-Shinning
Contact us for:

Free CP-10 samples for your testing
Technical support for formulation optimization
Custom grade development for specialized applications

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Water Based Rheology Modifier CP-WBS

Water based bentonite CP-WBS is modified bentonite. It is mainly used in water-borne system. 

Water-based bentonite is highly purified, easily dispersible powdered montmrillonite clay. Bentonite can disperse in water and form a high viscosity and suspension gel. It can be used as anti-settling agent, latex stabilizer and bentonite in water system.

Properties of Rrheological Additive for Waterborne Coatings

Composition:                                 Inorganic modified montmorillonite clay

Appearance:                                  Fine powder, white

Moisture content (105℃,2hr)         ≤12%

Bulk density                                    0.60~0.80g/cm3

Viscosity, 10% in water, mPa.S       10000-13000

Fineness (<74μm, %)                         ≥98% APPLICATIONS OF Water Based Rheology Modifier
KEY PROPERTY
● Daily use chemical                 ●viscosity control and impart thixotropy
(toothpaste , facial mask and detergent)
● Latex paint, water based ink, glazings
thickener, anti-settling , latex stabilizer ● suspension, adhesive, adsorption
●Medical care
●Textile industry
●textile sizing agent and dye leveller
●Paper industry
● dispersion, flocculation
●Texture coating
●water-retaining agent, easily dispersion

Advantages of Water Based Rheology Modifier CP-WBS

• High gelling effectiveness, CP-WBS can form gel even at 2% in water
• Easy dispersing
• Its gel is transparent and of light color
• Prevents pigment settling
• High thixotropy, Good anti-sag property
• Excellent anti-settling agent”
• Emulsion stabilizers

Application of Water Based Rheology Modifier CP-WBS

CP-WBS is used in the following applications:

• Putty
• Antiseptic
• Industrial water reducible paint
• Toothpaste and tooth polish
• Cream and Lotions
• Emulsion paint
• Pigment and blunge water
• Water-borne sealant, adhesive

Using

CP-WBS it can be added directly in powder, with its addition to be 0.2~3.0%. Procedures are as follow.

1. water (PH:7.0-8.0)
2. CP-WBS(Dispersing at high speed for 20-30minutes)
3. Additive
4. Pigment and filler (Mixing and dispersing)
5. Emulsion (Mixing).
6. Post correct. 

Safety

All safety information is provided in the Material Safety Data Sheets for Zhejiang Camp-Shinning New Material Co.,Ltd.

Package

Water Based Rheology Modifier with Kraft bag or kraft complex interior with PE or customized.

Storage

CP-WBS should be stored in ventilated cool and dry place.

Incorporation
Incorporation procedure for Water-borne grades
Water-borne Rheological Additive neither need to produce pre-gel nor add polar activator, the addition process is as follows:
1.Water(PH7.0-8.0)
2.Slowly add water-borne bentonite, disperse in high speed for 20-30minutes
3.Additive(film forming additive, deformer, fungicide, dispersant, etc.)
4.Pigment
5.Latex
6.Dilute
CAMP-SHINNING
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.

Water Based Rheology Modifier

Water based bentonite is widely used as a rheological additive for waterborne coatings and other water-based systems.

It provides excellent anti-settling agent performance, effectively preventing pigment sedimentation and ensuring uniform dispersion. As reliable emulsion stabilizers, these additives enhance system stability and improve storage consistency.

With strong thickening and thixotropic properties, bentonite for water based system applications delivers consistent viscosity control, making it an ideal rheological additive for water-based system formulations.

Cell (Whatsapp):    0086-13185071071

Email:   [email protected]

You are welcome to contact us in time, and we will provide you with free samples and application guidance.Looking forward to your inquiry.

And looking forward to you visiting our factory and visiting our workshop.

Related Products: Water based bentonite rheological additive | Water Based Organoclay | water based bentonite organoclay | Water based rheology modifiers for waterborne paints | Rheology modifier CP-40

Related Products: Organoclay Rheology Modifier for Linseed Oil Paints | Water based rheological additive for a gel-based fire retardant | Inorganic bentonite for aqueous coating – Water based paint & construction | Water Based Organic Bentonite Clay | Rheology modifier powder

High temperature organoclay for oil based mud

CP Series organoclay for HPHT drilling fluids, It can still operate normally at 220°C. As a result, our organophilic bentonite clay is extremely resistant to high temperatures and even pressure.

Even under high temperature and high pressure conditions, organobentonite still exhibits excellent suspension properties in oilfield drilling fluids.

In some organic mud systems, its excellent suspension properties prevent a significant decrease in the viscosity of the entire formulation, maintaining a constant balance, especially after 220°C, where it retains stable rheological and thixotropic properties.

Designed for HPHT Oilfield Drilling Applications

High temperature and high pressure organophilic clay bentonite, especially suitable for use in the following systems:

• Oil-Based Mud (OBM)

• Invert Emulsion Mud

• Synthetic-Based Mud (SBM)

• High density systems

• Barite weighted mud

High temperature organoclay for oil based mud

CP-EZ Organophilic Clay is an easy dispersing, rapid yielding organoclay that exhibits high performance efficiency in diesel oil, crude oil, Low BTEX base oil, mineral oil and synthetic containing base fluid formulation. It is stable and has good suspension and thixotropic features.  

Properties | High temperature organoclay for oil based mud

Composition                      Organically modified bentonite clay

Appearance                       Off white to tan finely divided powder,

Moisture content (105℃,2hr)         ≤4%

Particle size (200mesh)              ≥95%

Advantages

• Disperses easily in less time with less shear
• High performance viscosifier for low aromatic, all mineral oil and synthetic base fluids
• Cost- effectively builds viscosity and yield point
• Aids control of fluid loss to the formation
• Increases emulsion stability
• Suspends weighting  materials and other solids
• Confers stability at the pressure and temperature 10⁸Pa and 230℃

Application | High temperature organoclay for oil based mud

Base oil:

• Diesel Oils
• Crude Oils
• Mineral Oils
• Synthetic Oil
• Alpha Olefins
• Low BTEX base oil

Viscosifying drilling Fluids:

• Oil based drilling fluids
• Invert emulsion fluids
• Workover fluidsl
• Completion fluids
• Casing packs
• Packer fluids
• Spotting fluids

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 50LB/sack or customized

Storage

CP-EZ Store in a dry, well-ventilated area with temperature of 0℃-30℃.  Keep container closed. The quality guarantee period is 24 months.

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.

Compared to traditional organobentonite clay, our high-temperature stable organobentonite avoids the risk of failure at 180℃.

It also prevents viscosity collapse at high temperatures, especially sedimentation, because the suspension properties of ordinary traditional organobentonite are not as good as our high-temperature stable bentonite, and its filtration loss is also worse, while our organobentonite can reduce filtration loss.

CP series organic bentonite is compatible with the following additives.

• Emulsifiers

• Wetting agents

• Lime systems

• Calcium chloride

• High salinity systems

• Recommended dosage (e.g. 1.5–3.0%)

• High thermal stability organic structure

• Strong network formation in OBM

• Improved suspension at ultra-high temperature

• We welcome you to purchase our organic bentonite and request samples. We will do our best to provide you with the best technical guidance.

• High temperature organoclay for oil based mud

Related Products: Oil Base Mud Chemicals | Organophilic Clay | Elementor #32628 | Oil Based Mud Additives | Organophilic Clay | Organoclay Composition

Related Products: Organoclay 908 for Low to Medium Polarity Solvent Based Coatings | Organoclay based products | water based bentonite organoclay | Water Based Organoclay