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Dispersible Grade CMC – Instant Soluble Carboxymethyl Cellulose for High-Performance Coatings & Industrial Applications
Meta Description: Premium dispersible CMC sodium with rapid dissolution, excellent rheology control, strong dispersion, and trusted quality assurance - ideal for paints, coatings, and specialty formulations.
Dispersible grade CMC is a water-soluble polymer compound treated by surface modification technology (such as spray drying, micronization or special granulation process), which is a functional variant of CMC. Its core feature is that it can be quickly dispersed and dissolved in cold or hot water, avoiding the agglomeration phenomenon caused by intermolecular hydrogen bonding of traditional CMC, dispersible grade CMC can usually form a uniform solution within 10-30 minutes. As a highly efficient water-soluble polymer material, dispersible grade CMC is widely used in the paint field.
Hondo Chem Dispersible Grade CMC Used In Different Painting
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1. Architectural Coatings
- Interior and exterior latex paints: Dispersible grade CMC can replace traditional hydroxyethyl cellulose (HEC), effectively reducing costs by 50% while ensuring product leveling. For example, adding 0.5%-0.8% of Hondo Chem SR-2 to the formula can increase the paint's washability to more than 2,000 times.
- Real stone paint / texture paint: By adjusting the viscosity and thixotropy of the paint, dispersible grade CMC can effectively prevent the sedimentation of colored sand, improve the spraying effect, and reduce splashing losses.
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2. Industrial Coatings
- Water-based metallic paints: Adding 0.3%-0.6% of Hondo Chem SR-3 dispersible grade CMC to the formula of attribute metallic paint can shorten the touch-drying time to less than 15 minutes, while improving the directional arrangement of metallic pigments and enhancing the gloss of the paint film.
- Wood coatings: Dispersible grade CMC is compounded with polyurethane emulsion to improve the flexibility of wood coating film and reduce the risk of cracking in low temperature environment.
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3. Special Coatings
- Fire retardant coatings: High viscosity dispersible grade CMC (such as viscosity 4000-5000mPa・s) can be used as a thickener for intumescent fire retardant coatings to delay the decomposition rate of flame retardants and improve the fire resistance limit.
- Anti-graffiti coatings: Compounded with silicone resin, dispersible grade CMC can enhance the adhesion and scrub resistance of anti-graffiti coatings, and is suitable for wall protection in public places.
Core Function
1. Thickening and rheological adjustment
Dispersible grade CMC can quickly dissolve in the aqueous phase system, form a three-dimensional network structure through molecular chains, significantly increase the viscosity of the paint, improve the construction performance (such as uniformity during spraying or brushing), and prevent sagging or dripping.
Its rheological adjustment ability can optimize the thixotropy of the paint, so that the paint maintains high viscosity when stationary to prevent precipitation, and the viscosity is reduced by shear force during construction, which is convenient for coating. For example, adding 0.3%-1.0% of rapid dissolution CMC to latex paint can improve the anti-sagging performance of the paint by more than 30% when applied on a vertical surface.
2. Dispersion and stability
As a dispersant, rapid dissolution CMC-Na is adsorbed on the surface of pigment and filler particles, preventing agglomeration through electrostatic repulsion and steric hindrance effects, ensuring the long-term uniformity of the paint system. At the same time, dispersible grade CMC can effectively solve the flocculation problem of pigments such as iron oxide red.
During storage, the gel network structure of the dispersible grade CMC solution can inhibit sedimentation and stratification, extending the shelf life of the paint.
3. Wetting and film-forming aid
Dispersible grade CMC can reduce the surface tension of the coating system, enhance the wettability of the substrate, and improve the adhesion and coverage of the coating. In the film-forming process, it promotes the densification of the coating, reduces cracks, and improves the smoothness, wear resistance and water resistance of the paint film.
4.Integrated High-Efficiency
Our dispersible grade CMC is engineered for rapid cold-water dissolution through advanced spray-drying and micronization technology, preventing particle agglomeration and delivering fast, uniform hydration. Once dissolved, it forms a stable three-dimensional rheological network that provides reliable thickening, controlled viscosity development, and excellent thixotropic behavior for smoother application with reduced sagging or dripping. At the same time, it enhances pigment and filler dispersion by acting as an effective steric stabilizer, helping prevent flocculation and stratification while improving long-term formulation stability. Its ability to reduce surface tension further improves substrate wetting, film density, wear resistance, and water repellency in coating systems. With customizable viscosity grades ranging from low to high (typically 400–5000 mPa·s), our CMC can be precisely matched to the performance requirements of coatings, adhesives, and other industrial applications, ensuring consistent and optimized results across diverse end-use systems.
Advantage
1. Rapid Hydration & High Efficiency
Our dispersible CMC instantly dissolves in cold water, forming uniform solutions in minutes, reducing mixing time by up to 50%. Ideal for industrial coatings, adhesives, and water-based systems, it boosts production efficiency while ensuring consistent quality.
2. Stable Rheology & Anti-Sag Performance
Forms a robust 3D molecular network in aqueous systems, delivering precise viscosity control, smooth application, and thixotropic behavior. Minimizes sagging, dripping, and uneven coverage, ensuring professional-quality finishes in coatings and specialty formulations.
3. Superior Dispersion & Long-Term Stability
Acts as a steric stabilizer on pigments and fillers, preventing flocculation and sedimentation. Maintains uniform dispersion and consistent performance during storage and transportation, giving formulators confidence in batch-to-batch reliability.
4. Customizable Viscosity & Application Flexibility
Available in tailored viscosity grades (400–5000 mPa·s), this CMC adapts to diverse industrial applications. From paints and coatings to adhesives and specialty formulations, it enables optimized performance, cost-efficiency, and product consistency.
Specification
|
Spec. |
Standard |
|
Appearance |
White or yellowish powder or granular |
|
Starch |
None |
|
Moisture |
≤10.0% |
|
DS |
0.9min |
|
Mesh size |
80 mesh |
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Purity |
High purity |
|
pH |
7.0～10.0 |
|
Viscosity (1% solution) |
2000-5000 mPa·s |
Trusted Quality Control System - End-to-End Assurance
Hondo Chemical: Professional Factory for CMC
Raw Material Selection
We source certified cellulose feedstock optimized for consistent degree of substitution (DS) and purity.
01
Production Control
Our etherification and alkalization processes follow strict in-process monitoring for pH, temperature, and molecular substitution, minimizing batch variability.
02
Viscosity & Solubility Testing
Each batch is tested in standardized 1% aqueous solution for cold dispersion time and viscosity response.
03
Finished Goods Inspection
Physical appearance, mesh size, moisture content, and purity are verified against defined specifications before release.
04
Pre-Shipment QC
Final COA (Certificate of Analysis), TDS, and MSDS documentation are prepared for global compliance and client confidence.
05
Why Choose Us - Credibility & Differentiators
✔ Factory Direct Supply – Competitive pricing, flexible MOQ, and stable global logistics.
✔ Strict QC Systems – Complete control from raw materials to finished goods ensures consistent batch performance.
✔ Technical Support & Customization – Tailored viscosity and particle profiles match unique formulation goals.
✔ Documentation Ready – COA, TDS, MSDS available on request to support regulatory compliance.
Packing & Storage
Storage:
1. Carboxymethyl cellulose should store in a cool, dry, clean, ventilated environment. Temperature Max. 70℃, with relative humidity ≤80%.
Storage:
2. The CMC for pharmaceutical and food grade should not be put together with the toxic substance and harmful substance or substance with peculiar smell during transportation and storage.
Storage:
3. Since the date of production, a preservation period of sodium CMC should not exceed 4 years for the industrial product and 2 years for the CMC in pharmaceutical and food industry.
Storage:
4. The CMC should be prevented from water and package bag damaging during transportation.
Packing:
25kg kraft paper bag with PE inner, or as clients request.
Summary
Dispersible grade CMC significantly improves the workability and environmental friendliness of paints through multiple functions such as thickening, dispersing, and wetting. In practical applications, Dispersible grade CMC is necessary to optimize the addition process in combination with formulation requirements and pay attention to its compatibility with the system, thereby improving the performance of the paint. With the iteration of technology in the future, dispersible grade CMC's potential in the field of high-performance coatings will be further released.
FAQ
Q: How quickly does this CMC disperse in water?
A: Thanks to our surface-modified dispersible grade, most batches form uniform solutions in 10–30 minutes under standard mixing.
Q: Can this replace hydroxyethyl cellulose (HEC)?
A: In many paint and coating systems, dispersible CMC can replace or reduce HEC while improving performance and lowering cost.
Q: What viscosity range can I get?
A: Standard dispersible grades cover 2000–5000 mPa·s, with custom ranges available for special formulations.
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