Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Dow Walocel MC 40 Hydroxyethyl Methylcellulose Ether

Dow Walocel MC 40 is a hydroxyethyl methylcellulose (HEMC) ether from Dow’s Walocel series, offering excellent water retention, viscosity stability and compatibility in cementitious and gypsum-based formulations. It enhances workability, sag resistance and open time without compromising final strength—ideal for tile adhesives, self-leveling compounds and exterior insulation systems.
  • dow walocel mc 40 hydroxyethyl methylcellulose ether_fe1c8c8e
  • dow walocel mc 40 hydroxyethyl methylcellulose ether_fe1c8c8e

Features Of Dow Walocel MC 40 Hydroxyethyl Methylcellulose Ether

  1. Excellent water solubility with rapid, low-dust dispersion in cold water.

  2. High viscosity build and outstanding pseudoplastic rheology for improved application control.

  3. Enhanced thermal stability and consistent performance across a broad pH range (3–11).

  4. Good compatibility with common construction additives, including retarders, accelerators, and dispersants.

  5. Non-ionic nature ensures minimal interference with cement hydration kinetics.

Typical Applications Of Dow Walocel MC 40 Hydroxyethyl Methylcellulose Ether

  1. Cement-based tile adhesives and grouts.

  2. Self-leveling underlayments and flowable floor compounds.

  3. Exterior insulation finishing systems (EIFS) base and finish coats.

  4. Repair mortars and polymer-modified renders.

  5. Joint fillers and flexible sealant formulations.

Specifications Of Dow Walocel MC 40 Hydroxyethyl Methylcellulose Ether

Chemical TypeNon-ionic cellulose ether — hydroxyethyl methylcellulose (HEMC)
Product FormFree-flowing white to off-white powder
AppearanceOdorless, fine granular powder
Primary ApplicationsConstruction mortars, adhesives, and surface coatings
Key FeaturesHigh water retention, viscosity stabilization, anti-sag performance
BenefitsImproved workability, extended open time, reduced cracking and slumping
pH of 1% Aqueous Solution6.0–8.5
Viscosity (2% solution, 20°C, Brookfield RV)Approx. 40,000 mPa·s


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