Elvacite® 2669 is a water soluble methacrylate copolymer that is used as a binder and film former in coatings & inks where solvent emissions must be low.
Elvacite® 2669 is a solid bead methacrylate resin with a high acid number and medium molecular weight. The acid functionality of this polymer makes is soluble in slightly alkaline aqueous solutions. Elvacite® 2669 is an ideal film forming resin for ink and coating formulations that are applied to solvent sensitive substrates or require reduced solvent emissions. Solutions of Elvacite® 2669 show excellent adhesion to a variety of substrates including plastic and metal. It forms clear, abrasion resistant films with good UV resistance. Due to the water solubility, Elvacite® 2669 is best suited for applications where temporary coatings and inks are desired. If a more permanent coating or ink is desired, Elvacite® 2669 can be formulated with zinc oxide to improve water resistance and enhance durability.
Appearance: Solid beads
Specific gravity: 1.2 @ 25°C
Glass transition temp, onset: 101°C
Molecular weight: 22,000
Inherent viscosity: 0.285 - 0.350
Brookfield viscosity (cP) @ 30% in PGM: 500 - 900
% Moisture: 2.20 (max)
% Methacrylic acid: 19.0 - 22.0
Primary Chemistry: Methyl Methacrylate Copolymer
Dissolved in slightly alkaline aqueous systems
Abrasion resistance
Excellent viscosity control
Soluble in higher pH systems
Solvent emission restrictions
Damage to sensitive surfaces caused by solvents used in coatings
Water insolubility of acrylic coatings and inks
Printing inks; Plastic coatings; Metal coatings; Temporary coatings
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