METHOCEL™ F4M Premium is a medium molecular weight hydroxypropyl methylcellulose (HPMC) thickener. It yields a viscosity of approximately 4,000 cPs at 2% in water and is designed for applications requiring high-purity additives.
METHOCEL™ F4M Premium is a water-soluble HPMC polymer with low hydroxypropyl and high methoxy content. It is derived from cellulose and used as a thickener, binder, and suspension aid in applications that require high chemical purity, such as in the medical and electronics industries. METHOCEL™ F4M Premium is thixotropic in nature and provides solutions with excellent lubricity and spreadability properties. This makes it a great additive for coatings and ink applications. Additionally, METHOCEL™ polymers have outstanding pH stability, making them ideal for cleaning applications, where cleaners have improved adhesion and sag resistance on overhead or vertical surfaces. METHOCEL™ F4M Premium will reversibly gel at temperatures above 68°C and provide a boost in green strength for ceramics and adhesives.
Viscosity (2% in water at 20°C, cPs): 2,663–4,970
Methoxyl (%): 27.0–30.0
Hydroxypropoxyl (%): 4.0–7.5
Loss on drying (% max): 5.0
Residue on ignition (% max): 1.5
pH (2% in water): 5.0–8.0
Primary Chemistry: Hydroxypropyl methylcellulose (HPMC)
U.S. FDA GRAS for high- and improved-purity applications
Thermal gelation
Stable from pH 2 to 13
Provides thixotropic rheology
Moderate solvent compatibility
Low green strength of extruded ceramics used in electronic applications
Unstable viscosity of formulations with very high or low pH
Creep of water-based adhesives
Sagging of paints and coatings on overhead or vertical surfaces
Poor adhesion of cleaners to overhead or vertical surfaces
Adhesives
Coatings
Ceramics
Cleaners
For more information about METHOCEL™ F4M Premium and its applications and functionality, visit our dedicated website for cellulosics here!
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