Elvacite® 2045 is an iso-butyl methacrylate polymer used in coatings for solvent-sensitive substrates, plastic topcoats, and printing inks.
Elvacite® 2045 is a high–molecular weight acrylic polymer with broad solubility and a relatively low glass transition temperature (Tg). This resin provides a good balance of flexibility and hardness and is highly soluble in weak solvents. This makes Elvacite® 2045 preferred in coating applications where substrates can't tolerate the use of powerful solvents.
Elvacite® 2045 resin is commonly used in protective topcoats for metalized plastic films and as a binder in printing inks for flexible substrates. Elvacite® 2045 has great solubility in aliphatic hydrocarbons and has nonplugging properties, making it useful in creating tough films in screen ink and toner applications. Elvacite® 2045 may be blended with softer Elvacite® resins, such as Elvacite® 2044, to achieve softer films.
Additionally, Elvacite® 2045 resin burns out very clean and works well in ceramic and electronic applications that require a temporary binder to improve green strength.
Appearance: Solid bead
Specific gravity (25°C): 1.09
Glass transition temp, onset: 50°C
Molecular weight (Da): 193,000
Acid number: 0
Tukon hardness (Knoops no.): 8
Tensile strength (psi): 3,600
Elongation at break (23°C, 50% R.H.): 1%
Inherent viscosity (dL/g): 0.59–0.68
% Moisture: 0.3 (max)
Microtrac D50 particle size (microns): 100–350
Excellent abrasion resistance
Excellent flexibility
Outstanding solubility
Clean burnout characteristics
Adhesion failure to flexible substrates
Poor solubility and extended mixing time associated with solid acrylic resins
Topcoat for metalized films
Printing inks
Packaging adhesives
Ceramics
Electronics
Lacquers
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