MHEC

What is MHEC (HEMC)? – High-Quality Cellulose Ether for Construction and Paint

MHEC, also known as HEMC (Hydroxyethyl Methylcellulose), is a versatile cellulose ether widely used in construction materials and water-based Paint &coatings. As a modified cellulose ether, MHEC offers excellent water retention, thickening, and rheology control properties, making it a vital ingredient in products like tile adhesives, dry mix mortars, wall putty, gypsum plaster, and waterborne paints.

With superior alkali resistance and compatibility with various cementitious and gypsum-based formulations, MHEC enhances workability, adhesion, and durability of construction materials. Its unique molecular structure allows it to improve the flow, leveling, and stability of coatings, providing a smooth and uniform finish.

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Item	Details
Product Name	Hydroxyethyl Methylcellulose (HEMC)
Abbreviation	HEMC/MHEC
Appearance	White Powder or off-white powder
CAS Number	9032-42-2
HS Code	39123900
Packaging	25kg bags,OEM Package available
Shelf Life	2 years when properly stored

Main Application

Tile Adhesive

Improves open time, workability, and slip resistance for better tile alignment and strong bonding.

Wall Putty & Skim Coat

Enhances water retention and application smoothness, reduces cracks, and delivers a uniform surface.

Cement-Based Plasters & Mortars

Provides better consistency, water retention, and trowel ability for smooth and durable finishes.

Gypsum-Based Products

Improves workability and crack resistance in gypsum plasters, joint fillers, and repair compounds.

Self-Leveling Compounds

Enhances flow, prevents segregation, and ensures even spreading with stable viscosity.

Water-Based Paints & Coatings

Acts as a thickener and stabilizer for improved brush ability, leveling, and anti-sag performance.

Product Advantages of MHEC

MHEC (also known as HEMC) is a high-quality cellulose ether designed for demanding construction applications, especially under hot and dry conditions. Its optimized performance makes it an ideal additive in cement- and gypsum-based formulations.

High Gelation Temperature
MHEC features a higher gel temperature than conventional cellulose ethers, making it more stable and effective in hot climates and high-temperature environments.

Excellent Heat Resistance
Maintains viscosity and water retention even under elevated temperatures, ensuring consistent performance during summer or in tropical regions.

Superior Water Retention
Prevents rapid moisture loss in tile adhesives, plasters, and putty, enabling proper hydration, longer open time, and reduced risk of cracking.

Improved Workability
Provides smooth and easy application, better spread ability, and enhanced surface finish across various dry mix systems.

Outstanding Sag Resistance
Enhances vertical hold in tile adhesives and renders, reducing tile slippage and improving installation accuracy.

Alkali and Formulation Stability
Compatible with a wide range of cementitious and gypsum-based materials, and performs reliably in alkaline systems.

Technical Specification

Product name	Hydroxypropyl methyl cellulose (HPMC)
Methoxy content (%)	19.0 - 28.0
Hydroxyethoxy content (%)	4.0 - 12.0
Temperature of gelation	60℃ - 75 ℃
Moisture	＜5%
Ash content	＜5%
PH value	6.0-8.0
Appearance	White or Yellowish Powder
Fitness	80-100 Mesh
Viscosity-Brookfied (2%,20°C)	400-75,000 mPa.s
Viscosity-NJD (2%,20°C)	400-200,000 mPa.s
Function	water retention ,thickening ,Anti-slip etc.
HS Code	39123900
CAS number	9032-42-2

Why Choose Us

Professional Manufacturer: Construction grade MHEC powder for industrial applications
Certified Facilities: ISO9001 and GMP compliance
Bulk Supply: Reliable production capacity for large orders
Customizable Grades: Adjustable viscosity, substitution degree, and particle size
Technical Support: Formulation guidance and small-batch samples available
Global Reach: Export experience to Europe, North America, and Asia

Customized Products

We offer customized cellulose ether solutions to match your specific application, viscosity, setting time, and performance requirements.

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