1,4-Butanediol dimethacrylate

1,4-Butanediol dimethacrylate (CAS 2082-81-7, EC 218-218-1) is a bifunctional methacrylate monomer also referred to as 1,4-butylene dimethacrylate or BDDMA. It carries no assigned E-code and is classified under HS code 29161400 within the broader category of monomers and building blocks.

In polymer systems, BDDMA functions as a crosslinker by reacting through both methacrylate end groups simultaneously, forming three-dimensional network structures that increase hardness, solvent resistance, and dimensional stability in coatings, adhesives, and acrylic resins. It is also incorporated into dental and industrial polymer matrices where controlled crosslink density is required.

BDDMA is available in standard industrial liquid grade and is subject to REACH registration requirements for supply within the EU. Procurement quantities typically range from drum to IBC formats. Buyers should confirm supplier documentation for purity specifications and SDS compliance prior to formulation use.