Elvacite® 4021 is a highly flexible, high elongation methacrylate copolymer that is ideally suited for use as a resin in ceramic cover coat applications.
Elvacite® 4021 is a thermoplastic acrylic resin composed of methyl methacrylate and n- butyl methacrylate. It has a high molecular weight and is highly flexible. Elvacite® 4021 is available as a solid bead that is soluble in ketones, aromatics, chlorinated hydrocarbons, esters, and glycol ethers. When dissolved it will produce a solution with a relatively high viscosity. Due to its physical properties, Elvacite® 4021 is best suited for use in ceramic cover coat applications. The flexibility of this resin also makes it a good film former for plastic coatings, overprint varnishes, and heat seal lacquers. Elvacite® 4021 produces films with exceptional flexibility, gloss, and abrasion resistance. Elvacite® 4021 is non -reactive and can be added to reactive, UV, and EB cure systems to help control viscosity and prevent shrinkage upon cross link and cure.
Appearance: Solid beads
Glass transition temp, onset: 40°C
Molecular weight: 130,000
Acid number: 0
Inherent viscosity: 0.435 - 0.485
Brookfield viscosity (cP) @ 40% in toluene: 530 - 670
% Moisture: 0.75 (max)
Particle size Microtrac® D50: >125 microns
Primary Chemistry: Methyl Methacrylate Polymer
Strong and flexible polymer
Excellent transfer protection
Color transfer in ceramics
Shrinkage caused by cross-linking in UV curable formulations
Ceramic Coatings; Heat Seal Lacquer; Plastic Coatings; Decals; Overprint Varnish; Printing Inks
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