Construction Chemical Thickener Hydroxypropyl Methyl Cellulose HPMC

Hydroxypropyl Methyl Cellulose (HPMC), also referred to as hydroxypropyl methyl ether, is a non-ionic cellulose ether, commonly used as a thickener, binder, film former, emulsifier, and water retention aid in various construction materials .

HPMC is a white or off-white odorless powder that is soluble in cold water. It is made from cellulose, a natural polymer found in wood and plant fibers. HPMC is produced by chemically treating cellulose with propylene oxide and methyl chloride.

In construction, HPMC is primarily used as a thickener and water retention aid in:

  • Mortars and adhesives: HPMC helps to improve the workability of mortars and adhesives by increasing their viscosity. This makes them easier to apply and helps to prevent them from sagging or slumping.
  • Paints and coatings: HPMC can be used as a thickener in paints and coatings to improve their brushability and sag resistance.
  • Self-leveling compounds: HPMC is used in self-leveling compounds to improve their flowability and prevent them from segregating.
  • Plaster: HPMC can be used in plaster to improve its workability and adhesion.

HPMC offers several benefits for construction materials, including:

  • Improved workability: HPMC makes construction materials easier to apply and helps to prevent them from sagging or slumping.
  • Increased water retention: HPMC helps construction materials to retain water, which is important for proper hydration and curing.
  • Improved adhesion: HPMC can improve the adhesion of construction materials to substrates.
  • Extended open time: HPMC can extend the open time of construction materials, which allows for more working time.


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