HPMC (Hydroxypropyl Methylcellulose)

Hydroxypropyl Methylcellulose (HPMC), also called hypromellose, is a nonionic cellulose ether derived from natural cellulose. HPMC is used as a thickener, binder, film-forming agent, and stabilizing agent in several industries.

  • CAS Number: 9004-65-3
  • Chemical Formula: Varying by substitution (General C₁₀H₁₈O₆)
  • Appearance: White/off-white, odorless powder
  • Solubility: In cold water, HPMC dissolves to form a clear and viscous compound.
  • pH (1% solution):5.0-8.0
  • Viscosity Range: 5-200,000 cps (varies by grade).

It is chemically stable, has proven non-toxic and bio-degradable characteristics, will stay in solution, and has excellent film-forming characteristics.

Category:

Composition and Essential Properties

  • Methoxy Content:  19-30%
  • Hydroxypropoxy:  4-12%
  • Moisture Content:  ≤5%
  • Acid Content:  ≤1%
  • Density: 1. 26g/cm³
  • Thermal Stability:  Up to 200°C
  • Non-ionic:  Stable over a wide range of pH values.

When HPMC is suspended in water, it will form a transparent gel. It provides good water retention, strong coating, and a smooth texture and feel across a variety of formulations.

Major Applications Of HPMC

1.  Construction Industry

  • Serves as a water retention and thickening agent in cement-based tile adhesives and putty.
  • Increases workability and sag resistance of plaster, self-leveling compounds, and gypsum products.

2.  Coatings and Paints

  • Provides thickening and stabilizing functions for water-based coatings to regulate their viscosity, settling, etc.
  • Promotes better film formation and leveling in both decorative/industry coatings.

3.  Textiles/Printing

  • As a thickener in textile printing pastes, such as screen and rotary printing.
  • Helps control ink flow and provides crisp, non-bled designs on fabric.

4.  Paper and Packaging

  • Provides better surface-coat rheology for papers/boards during finishing.
  • Provides better adhesion of coatings, as well as reduces dusting during printing.

5.  Adhesives and Sealants

  • Acts as a thickener, binder, and filler in water-based adhesives and caulks.
  • Helps provide smooth flow, greater gap-filling ability, and extended open time to surfaces.

6.  Farming and Agricultural Chemicals

  • Used in making slow-release formulations of pesticides and fertilizers.
  • Helps to provide a continuous and constant release of active ingredients into the soil.

How to test the quality of HPMC

  • Viscosity Testing: Verifies both grade and performance.
  • Moisture Content: Should be less than 5%.
  • pH Level: For 1% solution, it should be 5-8.
  • Gel Temperatures: 60-90° depending on the grade of HPMC.
  • Ash: Must be less than 1%.
  • Degree of Substitution: Determines type and quality for intended use.

Request a COA and MSDS before purchase to confirm quality and safety compliance.

Global Manufacturers of HPMC

Global Suppliers:

  • Dow Chemical Company (USA)
  • Shin-Etsu Chemical Company (Japan)
  • Ashland Global Holdings (USA)
  • LOTTE Fine Chemicals (South Korea)

Top Chinese Suppliers:

  • Shandong Head Company Ltd.
  • Shandong Yiteng New Material Co., Ltd.
  • Hebei Shenze Yongyi Cellulose Co., Ltd.
  • China Ruitai International Holdings

China is a large global supplier of multiple grades of HPMC for the construction and pharmaceutical industries.

Where to Buy in Pakistan?

HPMC can be purchased from any of the main chemicals and industrial markets in Pakistan.

  • Karachi – Jodia Bazaar and many local importers in Karachi
  • Lahore_ Shah Alam Market in Lahore
  • Faislabad_ Construction material type suppliers in the industrial area

Most suppliers sell HPMC in 25 kg bags of either local or imported grades, depending on your needs.

HPMC Pricing Estimate (2026)

HPMC prices will differ based on the grade, purity, and supplier.

  • In the China Market: USD 2,100.00-$3,000.00 per tonne
  • In Pakistan Market: PKR 850.00-$1,400.00 per kg.

Pharmaceutical-grade types of HPMC typically will be more expensive when compared with the construction-grade type; be sure to check quality certification and sample testing results prior to making any type of bulk purchases. Tianjin Unilion International is your reliable partner for effortless import/export support, assisting you in effectively sourcing chemicals like HPMC from China with logistics, quality control, and customs clearance.

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