Polymers & Resins
REACH
Polymethyl methacrylate
CAS Number
9011-14-7
EC Number
618-466-4
Abbreviation
PMMA
What is Polymethyl methacrylate?
Polymethyl methacrylate (CAS 9011-14-7), commonly known as PMMA, is a synthetic thermoplastic polymer used in plastics fabrication, coatings, and structural applications.
Where is Polymethyl methacrylate used?
- Construction and automotive glazing: transparent panels, skylights, vehicle light housings
- Coatings and adhesives: film-forming binders improving scratch resistance and gloss retention
- Aerospace and defense: canopies, instrument covers, display panels
- Rheology modifier: PMMA microspheres and powders control flow in coatings and sealants
- PMMA pellets, powder, sheet, rod, and liquid dispersion are processed by extrusion, injection molding, or solution-based routes.
Commercial specifications
- CAS 9011-14-7
- Grades: general-purpose, impact-modified, optical-quality
- Molecular weight and MFI ratings vary by grade
Other Names (Synonyms)
Poly(methyl methacrylate)|PMMA
What are the physical properties of Polymethyl methacrylate?
Melting Point 190-210 °C
Boiling Point 250 °C (approx)
Density 1.30 g/cm³ (solid)
Flash Point 250 °C
Appearance white powder (or clear plastic sheet)
Color White
Form powder
Water Solubility Soluble in tetrahydrofuran, toluene, cyclohexanone, ethyl acetate and chloroform. Insoluble in water, alcohols and aliphatic hydrocarbons.
Refractive Index n 20/D 1.49
Log P 1.346 (est)
Which trade and regulatory codes apply to Polymethyl methacrylate?
HS Code 39061000
WGK (Germany) 3