About Ethylene Methacrylate Copolymer (EMAA)

Ethylene methacrylate copolymer (EMAA) is produced by the reaction of ethylene with methacrylic acid. The ethylene component provides properties such as water resistance, flexibility, chemical resistance, and pliability. The presence of methacrylic acid introduces polarity, adhesion, toughness, hot melt strength, and low-temperature heat sealability. Increasing the methacrylic acid content enhances adhesion to polar substrates, lowers softening and melting temperatures, improves clarity, and increases strength. Methacrylic acid copolymers are widely used in flexible packaging, such as laminated tubes, seasoning bags and pouches, sterile packaging, meat and cheese packaging, protective metal coatings, wires and cables, and powder coatings. They are also used in aqueous dispersions, glass adhesives, and ink and pigment formulations.

Applications:
The applications of this material are similar to those of optical sheet plastics. Its advantages include low working temperature, high stiffness values, fast cycle times, and high impact resistance, making Surlyn an excellent choice for prosthetic inspection sleeves, facial burn masks, and all shells and cuffs requiring clear visualization of underlying tissues. Surlyn is an optical resin capable of effectively detecting soft tissue pressure and localized burn areas. It offers excellent transparency, elasticity, and impact strength. Surlyn can provide good mold detail reproduction but requires specific molding techniques.