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Hydroxypropyl Methylcellulose

01 Overview

Hydroxypropyl methylcellulose (HPMC) is a nonionic mixed ether soluble in water and certain organic solvents. Its aqueous solution exhibits high transparency and surface activity, with gelation temperature varying according to methoxy content. HPMC finds extensive applications as a pharmaceutical coating agent and binder; detergent thickener; water-retention thickener in construction; and more.

In the food and pharmaceutical industries, Hydroxypropyl Methyl Cellulose(Hypromellose)  serves as an additive. Due to its adhesive and film-forming properties, as well as its ability to thicken and disperse in liquids, prevent oil migration, and retain moisture, it functions as an adhesive, thickener, dispersant, emollient, stabilizer, and emulsifier. It is non-toxic, has no nutritional value, and does not undergo metabolic changes.

Physical and Chemical Specification

Specification E(2910) F(2906) K(2208)
Gelling temperature (℃) 58-64 62-68 68-90
Methoxy (WT%) 27.0-30.0 27.0-30.0 19.0-24.0
Hydroxypropoxy (WT%) 7.0-12.0 4.0-7.5 4.0-12.0
Viscosity (2WT% Solution) 3, 5, 6, 15, 50, 4000, 10000, 30000, 50000,70000

Pharmaceutical Grade HPMC

Type Viscosity(cps) Remark
E5 4-5.5 2910(E)
E6 5.6-7.0
E15 12.1-18.0
E4M 3000-5000
K100 91-120 2208(K)
K4M 3000-5000
K100M 80000-120000

Hydroxypropyl Methyl Cellulose (HPMC) is a multi-functional pharmaceutical adjuvant which can be used as thickener, dispersant, emulsifier and film-forming agent. As film coating and binder, it can improve the dissolution rate of drugs. It can also be used as a suspension aid, host material in ophthalmic preparations and etc.

02 Construction Grade HPMC

Construction Grade HPMC

SdielyCel Viscosity Recommended Applications
MP-50N00 400CPS Self leveling
ME-44N05 40000-50000CPS Wall putty
ME-14N12 40000-50000CPS Tile adhesive
ME-25H32 50000-60000CPS Gypsum-based products
The Core Role of HPMC in Mortar
  1. 1
    Thickening Effect

    The molecular structure of HPMC forms a solution with a certain viscosity when mixed with water, thereby increasing the consistency of mortar. This makes it easier to apply and trowel after mixing. It effectively prevents mortar from sagging or slipping, especially during application on vertical or overhead surfaces.

  2. 2
    Water Retention

    In dry or high-temperature environments, HPMC significantly enhances mortar water retention, prolongs cement hydration time, and effectively improves later-stage bond strength and overall durability.

  3. 3
    Improve Workability

    HPMC possesses surfactant properties that make mortar smoother to apply, reducing physical effort during construction while facilitating precise workmanship and improving efficiency.

  4. 4
    Anti-Sagging Properties

    For mortars used in wall plastering or insulation layer application, HPMC’s anti-sagging effect is particularly crucial. It enables the mortar to maintain its shape before initial setting, reducing construction defects caused by flow.

03 Construction Grade HPMC

SidleyCel® Hydroxypropyl Methyl Cellulose (HPMC) can provide viscosity in all types of surfactant system. The powder surface has been treated through unique process, so it can be dissolved in the water quickly and has no agglomeration, flocculation or precipitation during dissolution.HPMC can be widely used in detergents.

Product Name Type Code Specification
(Viscosity,m.Pas)
Hydroxypropyl MethylCellulose (HPMC)​ D902 SD0001 10,000-20,000
D904 SD0002 25,000-35,000
D905 SD0004 ≥80,000
D906 SD0003 30,000-50,000

 

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