Zibo Hondo Chemical Co., Ltd. is one of the most experienced manufacturers and suppliers of ultra high viscosity cmc in China. Our factory offer high quality products made in China with competitive price. If you have any enquiry about quotation, please feel free to email us.

Hondo Chem ultra high viscosity CMC is a special type of carboxymethyl cellulose sodium (CMC-Na). Compare with ordinary CMC-Na solution, ultra high viscosity CMC's solution viscosity is significantly higher (usually 1% solution viscosity can reach 8,000-12,000 mPa·s or more). With its strong thickening, water retention and structural support capabilities, ultra high viscosity CMC is widely used in oil extraction, food industry, pharmaceutical sustained release and other fields.From a formulation engineering perspective, ultra high viscosity CMC is designed to achieve maximum viscosity efficiency at relatively low dosage, which is a key concern for industrial users aiming to reduce raw material cost while maintaining structural strength and stability.
Its rheological behavior shows strong pseudoplastic (shear-thinning) characteristics, enabling easier processing under shear while maintaining high static viscosity after application-a critical advantage in drilling fluids, food gels, and controlled-release pharmaceutical systems.

Core Application Areas

1. Ultra high viscosity CMC used in petroleum industry

In oil drilling industry, ultra high viscosity CMC and PAC can act as drilling fluids thickener, to improve the rock carrying capacity of drilling fluid and reduce wellbore collapse.

In the fracturing fluid base fluid, ultra high viscosity CMC and PAC with cross-linking agents (such as borax) form a high-temperature resistant gel to support fracture diversion.

During oil recovery process, ultra-high viscosity PAC and CMC is used as a polymer oil displacement agent to increase the viscosity of the water phase and improve the oil-water flow rate ratio. It can improve the oil recovery efficient.

Hondo Chem Ultra High Viscosity CMC and PAC are widely used in oilfield drilling, fracturing, and enhanced oil recovery systems, where stable viscosity and salt resistance are critical for wellbore safety and recovery efficiency. As an experienced ultra high viscosity CMC manufacturer, we ensure consistent molecular weight distribution to support large-scale oilfield applications.
2. Ultra high viscosity CMC used in food industry

The ultra high viscosity CMC can provide a thick texture for high viscosity sauce products(such as ketchup and mayonnaise), prevent the material from separating from the water, and provide a dense taste.

The ultra high viscosity CMC can bind water, simulate the fiber structure of meat, improve the taste of meat, and reduce the production cost of plant protein products(such as vegetarian meat).

The ultra high viscosity CMC can inhibit the growth of ice crystals in frozen food (such as ice cream)and improve the delicate taste.

Hondo Chem food-grade ultra high viscosity CMC is designed to meet modern food processing requirements for texture stability, water retention, and cost optimization. Its performance has been validated in high-viscosity sauces, frozen desserts, and plant-based products, making it a reliable choice for food manufacturers seeking consistent quality and clean-label-friendly solutions.
3. Ultra high viscosity CMC used in pharmaceuticals and biomedicine

Ultra-high viscosity carboxymethyl cellulose can be used as a skeleton material to control the drug release rate (such as gastric retention tablets).

And the ultra high viscosity CMC can be compounded with alginate to form a moisturizing gel to promote wound healing and is widely used in medical dressings.

In the Eye gel manufacturing, the super high viscosity carboxymethyl cellulose can be used in eye drops or eye gels, combining with water molecules and other effective medical ingredients to form a transparent colloid, prolonging the retention time of drugs in the cornea.Pharmaceutical-grade ultra high viscosity CMC supplied by Hondo Chem is produced under controlled conditions to ensure purity, viscosity stability, and predictable performance in drug delivery and biomedical applications. This reliability is especially important for customers requiring long-term batch consistency and compliance in pharmaceutical formulations.
4. Ultra high viscosity CMC used in industry and building materials

In Ceramic slurry, ultra high viscosity CMC can improve the strength of green body, reduce drying and cracking, and can also improve the gloss, wear resistance and gloss of glaze.

In Coatings and adhesives, the super high viscosity CMC can adjust the rheological properties of the solution, prevent the sedimentation of fillers in the coating, and prevent the generation of bubbles in the coating and glue.

In the Cement additive, the super high viscosity CMC can delay the setting time of cement, thereby improving construction operability.As an industrial-grade ultra high viscosity CMC supplier, Hondo Chem provides solutions for ceramics, coatings, adhesives, and cement systems where water retention, suspension stability, and workability control are essential. These properties help manufacturers improve processing efficiency and final product quality in demanding construction and industrial environments.

Application Solutions & Technical Support

Hondo Chem does not only supply ultra high viscosity CMC, but also provides application matching support, including:

Grade selection guidance based on viscosity demand and shear conditions

Compatibility evaluation with salts, surfactants, and other polymers

Dosage optimization to reduce formulation cost

Sample testing and formulation adjustment support

Functional Properties

Super Strong Thickening Ability

After dispersible carboxymethyl cellulose is dissolved in water, a uniform colloid system is formed. The viscosity of the colloid plays a role in thickening and stabilization in practical applications. Meantime,dispersible carboxymethyl cellulose is suitable for a variety of application environments, such as high salt, low acidity, and alkalinity.This thickening behavior is directly related to the high molecular weight and chain entanglement of ultra high viscosity CMC, allowing effective viscosity control at low dosage levels. Such efficiency is particularly valued by industrial users aiming to reduce formulation cost while maintaining stable performance.

Water Retention and Water Lock Ability

The ultra high viscosity CMC can bind free water and limit its migration. It is used in cement slurry, food and other scenes that require long-term moisturizing.The strong water-binding capability of ultra high viscosity CMC has been verified in cementitious and food systems, where controlled moisture retention directly influences curing behavior, texture stability, and final product consistency.

Suspension Stability

The ultra high viscosity CMC can support the uniform dispersion of solid particles (such as ceramic powders and drug particles) to prevent sedimentation.This stability has been verified in both industrial ceramic and pharmaceutical formulations, ensuring reliable particle suspension during long-term storage and high-shear processing. As a trusted supplier, Hondo Chem's ultra high viscosity CMC guarantees batch-to-batch consistency, reducing downtime and material waste for manufacturers seeking scalable and predictable production.

Film-forming Barrier

The ultra high viscosity CMC can form a dense film structure, which can be used for coating or packaging materials to block oxygen and moisture, thereby extending the service life of the finished product.Independent laboratory testing confirms its film uniformity and barrier properties, making it suitable for sensitive food, pharmaceutical, and industrial products. Its robust water and oxygen blocking capability helps manufacturers improve product stability, comply with safety regulations, and maintain consistent quality at large production scales.

Advantages

1. Extreme thickening ability

A small amount addition of ultra high viscosity CMC can significantly increase the viscosity of the system (0.5%-2% addition amount).This low dosage efficiency helps manufacturers optimize raw material usage, reduce formulation costs, and maintain consistent viscosity across large production batches.Its high molecular weight and chain entanglement properties allow efficient thickening even in challenging environments, including high-salt, high-solid, or extreme pH systems. This makes Hondo Chem ultra high viscosity CMC ideal for food, pharmaceutical, and industrial manufacturers requiring predictable performance at scale.

2. Thermal stability

The viscosity of the ultra high viscosity CMC solution remains stable below 80°C and can withstand 100°C for a short period of time.Thermal stability under elevated temperatures ensures reliable performance during processing steps involving heat, which is critical for continuous industrial and food production lines.This stability has been confirmed through internal heat-aging tests, ensuring that both batch-to-batch and long-term production maintain consistent viscosity and product quality, minimizing processing risks for manufacturers and aligning with industrial-scale operational requirements.

3. Synergistic compatibility

The ultra high viscosity CMC can enhance shear resistance and suspension stability (such as high solid content coatings) when combined with xanthan gum.

When combined with polyacrylamide (PAM), the ultra high viscosity CMC can synergistically improve viscosity and salt resistance in oil field flooding.

When combined with sodium alginate, the ultra high viscosity CMC forms an interpenetrating network gel, which is used for drug controlled release or food texture improvement.Such synergistic behavior allows ultra high viscosity CMC to be flexibly integrated into existing formulations, reducing reformulation risks for customers upgrading product performance.

Specification

Spec.	Standard
Appearance	White or yellowish granular
Starch	None
Moisture	≤10.0%
DS	0.70-0.8
Mesh size	80 mesh
Purity	High purity
pH	7.0～10.0
Viscosity (1% solution)	8000-12000 mPa·s

Quality Control & Manufacturing Assurance

Raw Material Control
Only high-purity cellulose is selected, with strict control of fiber length, ash content, and moisture to ensure stable molecular backbone.

Production Process Control
Etherification reaction parameters (alkali concentration, temperature, reaction time) are precisely controlled to achieve targeted viscosity and DS range.

In-Process Inspection
Viscosity, pH, substitution uniformity, and solubility are monitored during production to prevent deviation.

Finished Product Testing
Each batch is tested for viscosity (Brookfield method), moisture, particle size, and purity before release.

Pre-shipment Inspection & Traceability
Batch records are retained to ensure full traceability from raw material to shipment.

Why Choose Hondo Chem Ultra High Viscosity CMC

Stable viscosity performance with narrow batch deviation

Multi-industry application experience

Flexible customization for DS, viscosity, and particle size

Export-oriented quality standards for global markets

Technical communication support for formulators and engineers

Packing & Storage

Storage:

1. The ultra high viscosity CMC should store in a cool, dry, clean, ventilated environment. Temperature Max. 70℃, with relative humidity ≤80%.

Storage:

2. The ultra high viscosity 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 ultra high viscosity CMC should not exceed 4 years for the industrial product and 2 years for the ultra high viscosity CMC in pharmaceutical and food industry.

Storage:

4. The super high viscosity CMC should be prevented from water and package bag damaging during transportation.

Packing:

25kg kraft paper bag with PE inner, or as clients request.

product-2196-1618

Summary

Ultra-high viscosity CMC-Na is irreplaceable in heavy viscosity demand scenarios such as petroleum, food, and medicine due to its extreme thickening and long-term water retention characteristics. When using ultra high viscosity CMC, attention should be paid to dissolution process optimization and ion environment control. In the future, through functional modification and green manufacturing, ultra high viscosity CMC's application boundaries will be further expanded.