Methyl Methacrylate (MMA)

Methyl Methacrylate is a reactive (meth)acrylate component used as a diluent/crosslinker in radiation‑curable formulations to balance viscosity, cure speed, and final film properties.
Uses
PMMA plastics; coatings; adhesives; resins.
Benefits
Fast polymerization; clear, hard polymers.
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Safety, Compliance & Notes
Thermal Conductivity
0.16W/m·K.
Electrical Conductivity
0.000000001S/cm
Heat of Formation
-385kJ/mol
Heat of Vaporization
31.8kJ/mol
Structure
C5H8O2
CAS Number
80-62-6
EINECS Number
201-297-1
Storage & Packaging
Keep sealed, cool, and dry; protect from UV and contamination; rotate stock (FIFO) and prevent unintended polymerization. (Applicable to Methyl Methacrylate handling.)
Product Stewardship
Apply product stewardship: risk assessment, proper labeling, transport compliance, and customer communication via SDS/COA; avoid environmental release. (For Methyl Methacrylate.)
Note
Note: For Methyl Methacrylate, confirm grade, inhibitor content (if any), and purity/spec limits with the supplier COA before formulation.
Notice
NOTICE: This sheet is a compilation aid; always rely on the latest supplier documentation and applicable legal requirements for safe handling and performance. (For Methyl Methacrylate.)