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HEC for Water-Based Coatings

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Brief Product Description

Hydroxyethyl Cellulose (HEC) for water-based coatings is a non-ionic, water-soluble polymer that functions as a thickener, rheology modifier, and stabilizer in aqueous paint and coating systems. It dissolves readily in cold or hot water and imparts excellent viscosity control without adversely affecting film clarity or adhesion.

Product Overview

EASONZELL™ HEC for water-based coatings is engineered specifically for architectural and industrial aqueous paint formulations. As a cellulose-derived thickener, it provides pseudoplastic flow behavior — high viscosity at rest (sag resistance) and reduced viscosity under shear (easy brush or roller application). The product is compatible with a wide range of co-solvents, pigments, and latex emulsions commonly used in modern coating systems.

Its non-ionic nature means it is stable across a broad pH range (2–12) and shows good tolerance toward electrolytes and surfactants, making it an ideal rheology modifier for both interior and exterior formulations. EASONZELL™ HEC grades are available in various viscosity levels to suit high-PVC matte paints, semi-gloss finishes, and industrial protective coatings alike.

Specification

ParameterTypical Value / RangeTest Method
AppearanceWhite to off-white free-flowing powderVisual
Viscosity (2% aq., 25°C, Brookfield)100 – 100,000 mPa·s (multiple grades)ASTM D2364
Degree of Substitution (MS)1.8 – 2.5Titration
Moisture Content≤ 5.0%ISO 585
Ash Content≤ 5.0%ISO 1577
pH (1% solution)6.0 – 8.5pH meter
Particle Size98% pass 40 mesh (420 µm)Sieve analysis
Purity≥ 99%—

Application

EASONZELL™ HEC is widely used in water-based architectural coatings, industrial protective coatings, and specialty paint systems. Key application areas include:

  • Interior & exterior latex paints — provides ICI and KU viscosity balance, prevents pigment settling.
  • Primer and undercoat — improves leveling and prevents sagging on vertical surfaces.
  • Texture coatings & masonry paint — high-viscosity grades deliver thixotropic body required for roller-applied textured finishes.
  • Industrial coatings — electrolyte tolerance ensures stability in high-salt formulations.

Usage notes: Pre-disperse HEC in water before adding other ingredients. Avoid adding to acidic solutions below pH 3. Recommended addition level: 0.1–0.5% by weight of total formulation.

Advantages

  • Broad viscosity range — from 100 to 100,000 mPa·s to suit varied formulation needs.
  • Non-ionic chemistry — compatible with anionic, cationic, and nonionic additives; stable in electrolyte-rich systems.
  • Excellent pseudoplastic rheology — easy application with brush or roller, excellent sag resistance after application.
  • Good water retention — reduces water evaporation during application, extending open time.
  • Film transparency — does not negatively affect gloss or optical clarity of the dried film.
  • Reliable supply chain — manufactured in Zhejiang, China with 15,000 t/year capacity and consistent batch-to-batch quality.

Frequently Asked Questions

  • Q: Which HEC viscosity grade should I use for interior latex paint?
  • A: Mid-range grades (10,000–30,000 mPa·s at 2%) are most common for interior latex paints, providing a good balance between ICI viscosity (flow during application) and KU viscosity (sag resistance at rest). Contact our technical team with your target KU value for a specific grade recommendation.
  • Q: Can HEC be used in solvent-based coatings?
  • A: Standard HEC grades are designed for water-based systems and are not soluble in organic solvents. For solvent-borne systems, ethyl cellulose or other solvent-soluble derivatives are more appropriate.
  • Q: How should HEC powder be added to prevent lump formation?
  • A: Always disperse HEC in water under agitation before adding other components. Pre-wetting the powder in a small amount of solvent (glycol) before adding to water further prevents lumping, especially at higher addition levels.
  • Q: Is HEC compatible with biocides and preservatives in paint?
  • A: Yes. HEC is compatible with commonly used isothiazolinone-based preservatives (e.g., MIT, CMIT) at typical use levels. Some oxidizing biocides may degrade HEC over time; we recommend running a compatibility test for any new preservative system.
  • Q: What is the typical shelf life and storage condition for HEC?
  • A: Stored in original sealed packaging in a cool, dry location below 30°C and away from direct sunlight, the shelf life is 24 months. Once opened, reseal promptly to avoid moisture absorption.
  • Q: What is the standard packaging and minimum order quantity?
  • A: Standard packaging is 25 kg kraft paper bags with PE inner lining. Minimum order quantity for standard grades is typically one pallet (500 kg). FCL pricing is available for orders from 5 MT. Please contact us for an exact quotation.

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About Us
Zhejiang Yisheng New Material Co., Ltd.
Zhejiang Yisheng New Material Co., Ltd. is a professional enterprise engaged in the design, development, manufacturing, application, and sales of cellulose ether, located in the Shangyu Economic and Technological Development Zone, part of the Hangzhou Bay National Industrial Park. With a core concept of safety, environmental protection, and sustainable development, the company boasts an annual production capacity of 15,000 tons of cellulose ether, offering a complete range of products including HEC (hydroxyethylcellulose), HEMC (hydroxyethyl methylcellulose), and HPMC (hydroxypropyl methylcellulose). Our products serve various sectors such as oil fields, coatings, dry powder mortar, cosmetics, personal care products, medicine, and many others. Yisheng has a global presence, providing stable cellulose ethers and services to customers worldwide.
As a professional China HEC for Water-Based Coatings Supplier and HEC for Water-Based Coatings Company, The company adheres to the principles of safety and environmental protection as the foundation of its development. It implements and further consolidates safety and environmental protection measures, striving to create green and environmentally friendly production processes, safe and effective control systems, and orderly production management. This approach lays a solid foundation for the company's sustainable development. Yisheng boasts a scientific management mechanism, a comprehensive quality management system, stringent product testing methods, advanced technology, state-of-the-art equipment, and high-quality after-sales service.
Zhejiang Yisheng New Material Co., Ltd.

+86-18067879812
Zhejiang Yisheng New Material Co., Ltd.

sarah@ys-cellulose.com
Zhejiang Yisheng New Material Co., Ltd.