2-ethylhexyl methacrylate

2-Ethylhexyl methacrylate (CAS 688-84-6), commonly abbreviated as 2-EHMA, is a long-chain acrylic monomer used to modify the flexibility, adhesion, and glass transition temperature of polymer systems. It functions as a reactive building block in emulsion and solution polymerization, allowing formulators to tune end-product performance without the need for post-processing plasticizers.

In coatings and printing inks, 2-EHMA is copolymerized to improve film flexibility and substrate adhesion, particularly on flexible packaging substrates used in industrial applications. Adhesive formulators incorporate it into pressure-sensitive and structural adhesive systems where low-temperature performance and tack balance are critical for high-performance bonding.

In personal care, it appears in film-forming polymer systems used in nail coatings and hair fixatives, where controlled softness and durability are required for consumer products. Plastics compounders use it as a reactive softening comonomer to reduce brittleness in acrylic-based materials without sacrificing clarity or processability during manufacturing.

2-Ethylhexyl methacrylate is supplied as a clear liquid, typically with an inhibitor such as MEHQ added for storage stability and to prevent premature polymerization during transit. Technical grade is the standard commercial offering, with purity specifications commonly at 98% or higher. Bulk supply is available in drums and IBC containers for industrial use.