Elvacite® 4028 is a high molecular weight methacrylate copolymer that is designed for use as a binder in screen printing inks.
Elvacite® 4028 is a thermoplastic acrylic resin composed of methyl methacrylate and n-butyl methacrylate.
It is available as a solid bead that is soluble in ketones, toluene, glycol ethers, esters, and chlorinated hydrocarbons.
Elvacite is primarily used as a binder in screen printing inks; however, it can be used in a variety of ink formulations including flexographic and gravure.
It provides good pigment wetting and produces films that are flexible yet remarkably durable.
Due to a good balance of physical properties and adhesion Elvacite® 4028 is also used in PVC finishing lacquers, plastic coatings, and heat seal adhesives.
Appearance: Solid beads
Glass transition temp, onset: 103°C
Molecular weight: 96,000
Inherent viscosity: 0.430 - 0.475
Brookfield viscosity (cP) @ 30% in toluene: 300 - 500
% Moisture: 0.5 (max)
Particle size (microns) Microtrac®D50: 120 - 240
Primary Chemistry: Methacrylate Copolymer
Good flexibility
Abrasion resistant
Adhesion to plastic
Cracking of screen printed inks due to a lack of flexibility
Adhesion failure to plastic films and surfaces
Abrasion and scratching of coatings and inks
Screen Printing Inks; Flexographic Inks; Gravure Inks; Plastic Coatings; PVC Finishing Lacquer; Heat Seal Coating
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