Working Principle of HEC Powder
Hydroxyethyl Cellulose (HEC) is a water-soluble cellulose ether that functions primarily as a thickener, stabilizer, and water-retaining agent. Its mechanism is based on the following principles:
1. Hydration and Swelling
HEC molecules rapidly absorb water, forming a hydrated network that increases solution viscosity.
The degree of viscosity depends on the polymer’s molecular weight and hydroxyethyl substitution level.
2. Film Formation
Upon drying, HEC forms a continuous, flexible film that improves surface adhesion, prevents cracking, and enhances durability in construction and coating applications.
3. Rheology Control
HEC stabilizes suspensions and dispersions by increasing viscosity and imparting shear-thinning behavior, allowing easy application while preventing sagging or settling.
4. Water Retention
In cementitious and mortar systems, HEC reduces water evaporation, maintaining workability and improving hydration for stronger final products.
5. Compatibility and Synergy
HEC interacts with other polymers, fillers, or additives in formulations, enhancing performance without chemical reactions.
Hydroxyethyl cellulose Specification
| Item | Details |
|---|---|
| Product Name | Hydroxyethyl Cellulose (HEC) |
| Abbreviation | HEC |
| Appearance | White Powder or off-white powder |
| CAS Number | 9004-62-0 |
| H.S Code | 39123900 |
| Packaging | 25kg bags, OEM Package available |
| Shelf Life | 2 years when properly stored |
Main Application
01 Hydroxyethyl cellulose increases the viscosity of the coating, reducing the flow and splashing during application, while optimizing the leveling effect of the coating film, making the coating more uniform.
02 Its molecular structure can form a three-dimensional network, preventing the sedimentation of pigments and fillers, and extending the storage period of the coating.
03 In water-based coatings, hydroxyethyl cellulose can stabilize the emulsion system and facilitate the uniform dispersion of pigments and resins.
04 True stone paint / Colorful coating: Hydrophobic associative products enhance stability.
05 IUsed as sizing agents for the textile industry, and as adhesives, thickeners, emulsifiers, stabilizers and other additives in the light industry sector.
06 It is used as a thickening agent and a fluid loss reducer for water-based drilling fluids and completion fluids. Its thickening effect is particularly significant in saltwater drilling fluids.
Why is Xinwohao the best manufacturer of hydroxypropyl
methylcellulose
- Extensive
Production Capacity
• The modern factory covers an area of over 30,000 square meters and is equipped with advanced
production lines.
• Annual production volume: More than 60,000 tons, capable of meeting the demands of large-scale orders
and industrial-scale supply. - Customizable
Product Grades
• Adjustable viscosity (400–100,000 mPa·s) and substitution degree
• Tailored particle size and powder properties for specific applications
• Small batch samples available for formulation testing - Strict
Quality Control
• ISO9001, GMP, and REACH certified production
• Consistent performance, high solubility, and reliable water retentio
• Each batch tested for viscosity, pH, and particle characteristics - Wide
Industry Applications
• Construction: tile adhesive, wall putty, dry-mix mortar, gypsum plaster, self-leveling mortar
• Coatings & Paints: water-based paints, rheology control
• Home care & Detergent: viscosity control, stability, improved texture - Global
Export Experience
• Experienced in shipping to Europe, North America, and Asia
• Supports FOB, CIF, and DDP delivery options
• Bulk packaging options: 25kg bags, 500kg bags, ton bags - Technical
Support & After-Sales Service
• R&D team assists in selecting appropriate HPMC grades for specific formulations
• Guidance on dispersion, viscosity adjustment, and stability optimization
