Butyl acrylate-methacrylic acid-methyl methacrylate copolymer

Butyl acrylate-methacrylic acid-methyl methacrylate copolymer (CAS 25035-69-2) is an acrylic terpolymer combining soft butyl acrylate segments with methacrylic acid and methyl methacrylate. This combination delivers tunable film-forming and adhesion properties across industrial formulations. Buyers source this resin where controlled flexibility, surface adhesion, and rheological behavior must be balanced.

In architectural and industrial coatings, the terpolymer functions as a film-forming binder that controls viscosity build. It improves substrate adhesion on metal, plastic, and wood surfaces for long-term durability. Pressure-sensitive adhesive formulators use it to achieve the peel strength and tack balance required for labels, tapes, and protective films. It is essential for high-performance bonding applications.

In printing inks and packaging coatings, it contributes to gloss retention and ink holdout on both porous and non-porous substrates. Plastic compounders incorporate it as a surface modifier for adhesion. This copolymer is typically supplied as an aqueous dispersion or emulsion, with solids content varying by grade. Solution grades in organic solvents are available for applications where water sensitivity is a constraint.

Grades are generally offered to technical specifications, with molecular weight and acid value being the primary parameters. These factors are used to differentiate product performance tiers for industrial use.