Cellulose Ethers

HEMC — Hydroxyethyl Methyl Cellulose

Hydroxyethyl Methyl Cellulose (HEMC) is widely used in construction mortars, coatings, and daily chemical products. It provides excellent water retention, thickening, slip resistance, and improved workability in cement-based and gypsum-based applications.

High water retention & thickening effect
Improves workability & adhesion in mortars
Excellent slip resistance & dispersion
Suitable for construction, coatings & daily chemicals
CAS No.: 9032-42-2 Viscosity: 5,000 – 200,000 mPa·s Purity: ≥ 99% Package: 25 kg/bag
Hydroxyethyl Methyl Cellulose (HEMC) powder sample

Core Specifications

HEMC (Hydroxyethyl Methyl Cellulose) typical parameters for construction and coating applications.

AppearanceWhite / Off-white powder

Free-flowing, odorless, tasteless.

Visual
CAS No.9032-42-2

International standard reference.

Identity
Methoxyl Content19 – 30%

Depends on substitution level (DN60–75).

Substitution
Hydroxyethyl Content4 – 12%

Improves solubility and salt tolerance.

Substitution
Viscosity5 – 200,000 mPa·s

Measured on 2% solution, model dependent.

Grade dependent
Gel Temperature58 – 90 ℃

Varies with substitution degree.

Thermal
Moisture≤ 5%

Loss on drying.

Quality
Ash Content≤ 4%

Residue after ignition.

Purity
pH (2% sol.)5.0 – 8.5

Solution stability across range.

Neutral
HEMC in construction mortars

Construction Mortars

Improves water retention, workability and adhesion in tile adhesives, wall putty and gypsum-based mortars.

HEMC in coatings

Coatings & Paints

Acts as thickener and stabilizer in latex paints, enhancing viscosity, leveling and storage stability.

HEMC in daily chemicals

Daily Chemicals

Used in toothpaste, cosmetics and detergents for thickening, emulsifying and stabilizing effects.

Trusted Supply • Easy Contact

All HEMC products are from certified partner factories with COA per batch. Focus on your project — we take care of compliance and logistics. Reach out anytime for fast support.

Why Work With Us?

Certified partner factories • COA with every batch • Flexible shipping • Responsive support

FAQ

What is the MOQ and lead time?

MOQ is 1 ton. Typical lead time is 7–15 days depending on stock and port schedule.

Do you provide certificates and testing?

Each batch is supplied with a COA (Certificate of Analysis). Additional documents such as MSDS, TDS or other compliance certificates can be provided when available. For special requests, third-party inspection or testing can be arranged, with the inspection fee borne by the buyer.

Which payment terms do you accept?

T/T, L/C, and flexible options for long-term clients. Please confirm details during inquiry.