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Hydroxypropyl Methyl Cellulose Ether (HPMC)

High-quality refined cotton raw material, excellent water retention, thickening, adhesion, film-forming. Viscosity 5,000-200,000 mPa·s, suitable for building materials, coatings, pharmaceuticals, food.

$2000 / ton (FOB)

Viscosity range5,000-200,000 mPa·s
AppearanceWhite powder
Methoxyl content19.0%-30.0%
Delivery timeIn-stock 3-7 days

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Product Introduction

Our hydroxypropyl methyl cellulose ether (HPMC) is made from high-quality refined cotton through processes such as alkalization, etherification, neutralization, washing, and drying. The product features excellent water retention, thickening, adhesion, film-forming, and dispersing properties. It is widely used in construction mortars, tile adhesives, putty powders, gypsum products, coatings, pharmaceuticals, food, daily chemicals, and other fields. The product is available in a full range of viscosity grades (5,000-200,000 mPa·s), is certified to ISO 9001, complies with USP, EP, JP and other pharmacopoeia standards, and is exported to 40+ countries and regions worldwide.

Technical Parameters

Test Item	Specification
Appearance	White or off-white powder
Methoxyl content	19.0%-30.0%
Hydroxypropoxyl content	4.0%-12.0%
Viscosity (2% aqueous solution, 20°C)	5,000-200,000 mPa·s
Gel temperature	58-68℃
Moisture	≤5.0%
Ash	≤0.5%
pH value (1% aqueous solution)	5.0-8.0
Fineness	100 mesh pass rate ≥98%

Product Features

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Excellent water retention

HPMC has extremely strong water-retaining capacity, significantly delaying water evaporation in mortar, ensuring full cement hydration, improving mortar strength and adhesion, and avoiding hollowing, cracking, and other problems.

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Efficient thickening

HPMC can significantly increase the viscosity and consistency of mortar, improve workability, reduce sagging and dripping, and improve construction efficiency.

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Good adhesion

HPMC can enhance the bond between mortar and substrate, improve the firmness of tiles, stone, and other decorative materials, and reduce the risk of falling off.

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Excellent film-forming property

HPMC can form a uniform and dense protective film on the mortar surface, improving the impermeability and weather resistance of mortar.

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Wide adaptability

HPMC has good compatibility with cement, gypsum, lime, and other cementitious materials and can be compounded with various admixtures.

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Green and environmentally friendly

HPMC uses natural cellulose as raw material. It is non-toxic, odorless, biodegradable, and meets green building material standards.

Applications

Tile adhesive / bonding mortar

Improves water retention and adhesion, extends open time, reduces tile hollowing and falling off, and is suitable for bonding various tiles and stone.

Putty powder / leveling mortar

Improves workability, improves scraping smoothness, reduces cracking, enhances adhesion, and is suitable for interior and exterior wall putty.

Gypsum-based products

Improves water retention and workability of gypsum mortar, retards setting time, improves construction performance, and is suitable for gypsum plastering and gypsum self-leveling.

Masonry / plastering mortar

Improves water retention and workability of mortar, reduces bleeding and segregation, and improves construction efficiency and project quality.

Coatings industry

Used as thickener, dispersant, and film-forming agent, improving coating stability, workability, and film performance. Suitable for interior and exterior wall coatings and stone-like paint.

Pharmaceuticals / food / daily chemicals

Used as pharmaceutical excipients, food additives, and daily chemical raw materials for tablet coating, sustained-release preparations, food thickening, cosmetics, etc.

Packaging & Logistics

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Packaging

25 kg/bag (laminated woven bag with PE inner liner), 500 kg/bag, 1000 kg/bag (jumbo bag)

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Container loading

A 20-ft container can load 20-22 tons (jumbo bags); 25 kg bagged product can load 24 tons

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Transportation

Sea freight, rail transport, truck transport

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Delivery time

In-stock products shipped within 3-7 days; customized products 10-15 days

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Payment terms

T/T (30% deposit, 70% against copy of B/L), L/C, PayPal (samples)

🏭

Storage conditions

Store sealed in a cool and dry place, moisture-proof and sun-proof, shelf life 24 months

Quality Assurance

✓

Each batch is strictly inspected before delivery, with a COA quality inspection report provided

✓

ISO 9001 quality management system certified

✓

Products comply with USP, EP, JP and other pharmacopoeia standards and building materials industry standards

✓

A professional laboratory is equipped with a full set of testing equipment to ensure stable and reliable product quality

✓

Customized viscosity specifications and special models available upon customer request

FAQ

How should the viscosity of HPMC be selected? +

Different application scenarios require HPMC of different viscosities. Tile adhesives generally use 40,000-100,000 mPa·s; putty powders use 100,000-200,000 mPa·s; gypsum mortars use 10,000-40,000 mPa·s; coatings use 5,000-20,000 mPa·s. The specific viscosity should be determined by testing according to the formula and construction requirements. We can provide technical support.

What is the recommended dosage of HPMC? +

The dosage of HPMC varies by application. Tile adhesives generally use 0.2%-0.5%; putty powders 0.3%-0.8%; gypsum mortars 0.1%-0.3%; masonry and plastering mortars 0.05%-0.2%; coatings 0.3%-1.0%. The specific dosage should be determined by testing according to formula design and performance requirements.

What is the difference between HPMC and CMC? +

HPMC (hydroxypropyl methyl cellulose) and CMC (carboxymethyl cellulose) are both cellulose ethers, but their properties differ significantly. HPMC has better water retention, alkali resistance, and thermal stability than CMC, making it suitable for cement-based and gypsum-based building materials. CMC has good thickening and adhesion but poor alkali resistance and easily degrades in alkaline environments. HPMC is generally recommended for construction mortars.

Can you provide samples? +

Yes. We provide 1-2 kg samples free of charge for customer testing. The sample freight is borne by the customer. Samples of different viscosity specifications can be provided according to customer needs.

What is the minimum order quantity? +

The minimum order quantity for regular products is 1 ton. Small trial orders are supported. Large orders (over 100 tons) can enjoy preferential prices.

Hydroxypropyl Methyl Cellulose Ether (HPMC)

Product Introduction

Technical Parameters