METHOCEL™ F4M PRG is a medium molecular weight hydroxypropyl methylcellulose (HPMC) thickener optimized for paint stripper and removal applications. It yields a viscosity of 4,000 cPs at 2% in water.
METHOCEL™ F4M PRG is an HPMC polymer with low hydroxypropyl and high methoxy content. It is a chemical additive naturally derived from cellulose with a unique combination of water and organic solubility. This makes it ideal for cleaner and paint remover applications. The thixotropic nature of METHOCEL™ F4M PRG provides better spreadability and adhesion properties to surfaces, reducing dripping and sagging. Additionally, METHOCEL™ F4M PRG has outstanding pH stability in both acidic and alkaline environments. This allows formulators better flexibility when developing paint removal or cleaning products.
Methoxyl (%): 27.0–30.0
Hydroxypropoxyl (%): 4.0–7.5
Viscosity (2% in water at 20°C, cPs): 3,500–5,600
Primary Chemistry: Hydroxypropyl methylcellulose (HPMC)
Water soluble
Soluble in various solvent systems
Provides thickening and thixotropic rheology
Improves contact time and adhesion on surfaces
Stable in pH 2–13
Insufficient cling of paint strippers and cleaners to vertical and overhead surfaces
Unstable viscosity of acid- and alkali-based detergents and cleaning products
Paint strippers and removers
Cleaners
For more information about METHOCEL™ and its applications and functionality, visit our dedicated website for cellulosics here!
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