Glycidyl methacrylate

CAS: 106-91-2

Overview

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.

This dual reactivity allows it to participate in both free-radical polymerization and ring-opening crosslinking reactions, making it a valued building block for specialty polymer systems.

GMA is primarily used in the production of functional acrylic copolymers for powder coatings, where its epoxide groups react with carboxylic acid curatives to deliver durable, high-gloss finishes.

In adhesives and reactive hot melts, it introduces crosslinkable sites that improve bond strength and chemical resistance in the cured film. Formulators use it as a compatibilizer and reactive coupling agent.

When blending immiscible polymers such as polyesters and polyolefins, it acts as a bridge. It also serves as a surface-functionalizing monomer in specialty coatings and grafting processes for textiles.

This monomer is essential for packaging films where controlled surface chemistry is required. Glycidyl methacrylate is supplied as a clear liquid, typically with inhibitor added to prevent premature polymerization.

Technical and industrial grades are the standard commercial offering, with purity levels commonly at 97% or higher. Bulk liquid and drum packaging are the typical supply formats for industrial buyers.

Physical Properties

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℃

Safety & Handling

Danger GHS05 GHS06 GHS08 GHS07 Hazard Statements H227 Combustible liquid H302 Harmful if swallowed H311 Toxic in contact with skin H312 Harmful in contact with skin H314 Causes severe skin burns and eye damage H315 Causes skin irritation H317 May cause an allergic skin reaction H318 Causes serious eye damage H319 Causes serious eye irritation H332 Harmful if inhaled H335 May cause respiratory irritation H341 Suspected of causing genetic defects H350 May cause cancer H360 May damage fertility or the unborn child H361 Suspected of damaging fertility or the unborn child H370 Causes damage to organs H372 Causes damage to organs through prolonged or repeated exposure H401 Toxic to aquatic life H412 Harmful to aquatic life with long lasting effects H302+H332 Harmful if swallowed or if inhaled 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. P262 Do not get in eyes, on skin, or on clothing. P264 Wash … thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P271 Use only outdoors or in a well-ventilated area. P272 Contaminated work clothing should not be allowed out of the workplace. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P316 Get emergency medical help immediately. P317 Get emergency medical help. P318 IF exposed or concerned, get medical advice. P319 Get medical advice/attention if you feel unwell. P321 Specific treatment (see … on this label). P330 Rinse mouth. P363 Wash contaminated clothing before reuse. P403 Store in a well-ventilated place. P405 Store locked up. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P301+P317 Get emergency medical help. P302+P352 IF ON SKIN: Wash with plenty of water. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P308+P316 Get emergency medical help immediately. P332+P317 Get emergency medical help. P333+P317 Get emergency medical help. P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help. P361+P364 Take off immediately all contaminated clothing and wash it before reuse. P362+P364 Take off contaminated clothing and wash it before reuse. P370+P378 Use … for extinction. P403+P233 Store in a well-ventilated place. Keep container tightly closed. P301+P330+P331 Rinse mouth. Do NOT induce vomiting. P302+P361+P354 IF ON SKIN: Take off immediately all contaminated clothing. Rinse skin with water/shower. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P305+P354+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

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

Other Names

Industries

Food & Nutrition Personal Care & Cosmetics Printing & Packaging Plastics & Polymers