METHOCEL™ A4C Premium is a medium–molecular weight methylcellulose thickener with a viscosity of 400 cPs at 2% in water.
METHOCEL™ A4C Premium is a water-soluble methylcellulose polymer with very high purity. This cellulose ether is used as a thickener, binder, and film former, where solutions containing METHOCEL™ A4C gain pseudoplastic rheology. These properties make it a perfect thickener for paints, coatings, and adhesives, allowing them to spread more easily, retain adhesion on vertical surfaces, and form films with high integrity. This grade also helps maintain stability in suspensions and emulsions to increase the storage life of the aforementioned products. METHOCEL™ A4C Premium will reversibly gel at temperatures above 55°C, making it an ideal binder for ceramics to boost green strength.
METHOCEL™ cellulose ethers have excellent stability in extreme pH and can provide viscosity control in both acidic and alkaline systems. A4C Premium can be used to optimize a wide range of product textures and handling, given its precise control of rheology, thus making it a useful ingredient in making formulations from theatrical props to test standard solutions.
CAS number: 9004-67-5
Methoxyl, %: 27.5–31.5
Loss on drying, % max: 5
Residue on ignition, % max: 1.5
pH, 2% in water: 5.0–8.0
Viscosity, cPs (2% in water, at 20°C, calculated): 320–480
Primary Chemistry:
Methylcellulose (MC)
Sag of water-based coatings, adhesives, or cleaners due to low viscosity
Poor flow and leveling of film-forming formulations
Short shelf lives of suspension- or emulsion-based formulations
High rates of ceramic part defects due to poor green strength
Adhesives
Ceramics
Cleaners
Coatings
Agriculture
Inks
For more information about METHOCEL™ A4C Premium and its applications and functionality, visit our dedicated website for cellulosics here.
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