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

Dow ETHOCEL Std 4 Premium Ethyl Cellulose

Dow ETHOCEL Std 4 Premium Ethyl Cellulose is a high-purity, low-viscosity ethyl cellulose polymer from Dow’s premium ETHOCEL Std series. Designed for pharmaceutical coatings, inks, and adhesives, it offers excellent film-forming ability, water resistance, and thermal stability. Its consistent molecular weight and low ash content ensure reliable performance in demanding applications.
  • dow ethocel std 4 premium ethyl cellulose_fa5e106f
  • dow ethocel std 4 premium ethyl cellulose_fa5e106f

Features Of Dow ETHOCEL Std 4 Premium Ethyl Cellulose

  1. Highly consistent ethoxy substitution (47.0–49.5%) for reliable film-forming performance.

  2. Low viscosity grade optimized for solvent-based coatings requiring excellent flow and leveling.

  3. Excellent thermal stability and compatibility with common organic solvents including toluene, xylene, and ketones.

  4. Non-ionic, pH-stable polymer suitable for formulations sensitive to ionic interference.

  5. USP/NF and EP monograph compliant — approved for pharmaceutical and food-contact applications.

Typical Applications Of Dow ETHOCEL Std 4 Premium Ethyl Cellulose

  1. Controlled-release matrix tablets and multiparticulate drug delivery systems.

  2. Flexible, abrasion-resistant overcoats for industrial metal and plastic substrates.

  3. Binders and film formers in decorative and functional architectural coatings.

  4. Release liners and temporary protective films in electronics manufacturing.

  5. Thermoplastic binder in ceramic green tape and advanced battery electrode processing.

Specifications Of Dow ETHOCEL Std 4 Premium Ethyl Cellulose

Chemical TypeEthyl cellulose polymer
Product FormFree-flowing white to off-white granular powder
AppearanceWhite to creamy white, odorless granules
Ethoxy Content (wt%)47.0–49.5%
Viscosity (2% w/w in Toluene/Ethanol 80/20, 25°C)3.5–4.5 cP
Moisture Content (max)5.0%
SolubilitySoluble in chlorinated hydrocarbons, aromatic hydrocarbons, and ketones; insoluble in water and aliphatic hydrocarbons
Regulatory StatusUSP/NF, EP, FDA 21 CFR 175.105, 177.1390


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