Glycidyl methacrylate
CAS Number
106-91-2
EC Number
203-441-9
Abbreviation
GMA
What is Glycidyl methacrylate?
Glycidyl methacrylate (GMA, CAS 106-91-2), also known as 2,3-Epoxypropyl methacrylate, is a bifunctional reactive monomer combining an epoxide group with a methacrylate group in a single molecule.
Where is Glycidyl methacrylate used?
- Powder coatings: functional acrylic copolymers whose epoxide groups react with carboxylic acid curatives for durable, high-gloss finishes
- Adhesives and reactive hot melts: crosslinkable sites that improve bond strength and chemical resistance in the cured film
- Compatibilizer and reactive coupling agent
- Textiles: surface-functionalizing monomer in specialty coatings and grafting processes
- It acts as a bridge when blending immiscible polymers such as polyesters and polyolefins.
Good to know: Dual reactivity allows participation in both free-radical polymerization and ring-opening crosslinking reactions. Inhibitor is typically added to prevent premature polymerization.
Commercial specifications
- Purity levels commonly at 97% or higher
- Bulk liquid and drum packaging
Other Names (Synonyms)
2,3-Epoxypropyl methacrylate|Glycidol methacrylate|SY-Monomer G|Blemmer G|Acriester G|Blemmer GMA|Light Ester G|Methacrylic acid, 2,3-epoxypropyl ester|GMA
What are the physical properties of Glycidyl methacrylate?
Melting Point -52°C
Boiling Point 189 °C
Density 1.042 g/cm³
Flash Point 169 °F
Appearance clear liquid
Color Clear
Form Liquid
Water Solubility 0.5-1.0 g/100 mL at 20 ºC
Vapor Pressure 4.2hPa at 25℃
Refractive Index n 20/D 1.449(lit.)
Log P 0.96 at 25℃
How is Glycidyl methacrylate classified and handled safely? Learn More
Danger
GHS05· Corrosive GHS06· Toxic GHS08· Health Hazard GHS07· Irritant
Hazard Statements
H227 Combustible liquid
H302 Harmful if swallowed
H311 Toxic in contact with skin
H312 Harmful in contact with skin
Precautionary Statements
P203 Obtain, consult and follow expert instructions for use.
P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
Which trade and regulatory codes apply to Glycidyl methacrylate?
HS Code 29161490
UN Number 2810
ADR Class 6.1
Packing Group III
Storage Class 6.1C - Combustible acute toxic Cat.3
toxic compounds or compounds which causing chronic effects
WGK (Germany) 2