Description

2-Hydroxyethyl Methacrylate (HEMA) is a versatile and highly reactive monomer featuring both a polymerizable methacrylate group and a hydroxyl group. This bifunctional structure makes it a critical building block for creating polymers with tailored properties, such as enhanced adhesion, flexibility, and hydrophilicity. It is essential for formulators and manufacturers in sectors requiring high-performance coatings, adhesives, and specialty polymers.

Application

• UV-Curable Coatings & Inks: A key component in formulations for wood, plastic, and metal coatings, providing fast curing and excellent film properties.
• Acrylic Resins & Adhesives: Used to manufacture pressure-sensitive adhesives, structural adhesives, and sealants with improved bonding strength and flexibility.
• Hydrogel Production: Serves as a primary monomer for soft contact lenses, wound dressings, and other biomedical hydrogels due to its water-absorbing capability.
• Dental Composites & Restoratives: Imparts durability and biocompatibility in dental filling materials and restorative resins.
• Fiber Optic Coatings: Provides protective, flexible cladding for optical fibers, enhancing signal transmission and durability.
• Reactive Diluent: Functions as a low-viscosity, crosslinking agent in unsaturated polyester resins and other thermoset systems.
• Textile & Leather Finishes: Used in coatings to impart water resistance, softness, and durability to fabrics and leather goods.

Basic Information

Item	Details
Product Name	2-Hydroxyethyl Methacrylate
CAS No.	868-77-9
Molecular Formula	C6H10O3
Molecular Weight	130.14 g/mol
Synonyms	HEMA; Ethylene glycol methacrylate; Glycol methacrylate; 2-(Methacryloyloxy)ethanol; β-Hydroxyethyl methacrylate; Methacrylic acid 2-hydroxyethyl ester; Ethyl methacrylate, 2-hydroxy-; NSC 24128
EINECS	212-782-2

Quality Control

Our 2-Hydroxyethyl Methacrylate is produced under a stringent quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets precise specifications for purity, color, and inhibitor content. A Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee traceability and compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at temperatures between 15°C and 25°C (59°F and 77°F). Keep away from heat, sparks, and open flames. Due to its light-sensitive nature and the presence of a polymerization inhibitor, prolonged storage at elevated temperatures should be avoided.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Assay (GC)	≥ 97.0 %
Water Content (KF)	≤ 0.5 %
Color (APHA)	≤ 50
Acidity (as Methacrylic Acid)	≤ 0.5 %
Inhibitor (MEHQ)	100 - 250 ppm
Refractive Index (n20D)	1.450 - 1.455
Density (20°C)	1.065 - 1.075 g/mL

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.