Industrial chemicals MMA (Methyl Methacrylate) is an enoic ester which has methacrylic acid as an acid component. MMA (Methyl Methacrylate) is a clear and colorless liquid and has the chemical formula C5H8O2. MMA (Methyl Methacrylate) has strong stability and durability. Commonly used for protective coatings, adhesives, anti-bubble resin, remove bubbles / bubbles on the resin, clear resin clarifier.