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Rocryl 400 Hydroxyethyl methacrylate (HEMA) is a monofunctional methacrylate monomer widely used in polymer and resin formulations for adhesives, coatings, hydrogels, and biomedical materials.
It features both a methacrylate group and a hydrophilic hydroxyethyl group, making it highly reactive and water-compatible.
Rocryl 400 Hydroxyethyl methacrylate (HEMA) is valued for its versatility, biocompatibility, and strong adhesion to a variety of surfaces.
CAS Number: 868-77-9
EC Number: 212-782-2
Molecular Formula: C₆H₁₀O₃
Molecular Weight: 130.14 g/mol
Synonyms: Rocryl 400 Hydroxyethyl methacrylate, HEMA, 2-Hydroxyethyl methacrylate, Hydroxyethyl methacrylate, 2-HEMA, Glycol methacrylate, HEMA monomer, HEMA polymer precursor, 2-Hydroxyethyl 2-methylpropenoate, Hydroxyethyl ester of methacrylic acid, HEMA acrylate, HEMA reactive diluent, HEMA crosslinker, HEMA adhesive monomer, Methacrylic acid hydroxyethyl ester, Methacryloyloxyethanol, Methacrylic ester HEMA, Hydrophilic methacrylate monomer, Medical grade HEMA, HEMA for dental resins, Ophthalmic HEMA monomer, Biocompatible monomer HEMA, HEMA for contact lenses, HEMA for hydrogels, Functional monomer HEMA, Reactive monomer for copolymers, Industrial grade HEMA, Polymerizable HEMA, UV-curable HEMA monomer, Cosmetic grade HEMA, Acrylate-based monomer HEMA, 2-Hydroxyethyl methacrylate (Rocryl 400)
APPLICATIONS
Rocryl 400 Hydroxyethyl methacrylate (HEMA) is used in contact lenses and biomedical hydrogels for its hydrophilicity and oxygen permeability.
Rocryl 400 Hydroxyethyl methacrylate (HEMA) is included in dental materials such as adhesives, cements, and restorative composites.
Rocryl 400 Hydroxyethyl methacrylate (HEMA) is employed in UV-curable inks, coatings, and adhesives for enhanced adhesion and flexibility.
Rocryl 400 Hydroxyethyl methacrylate (HEMA) is used in cosmetics and personal care as a film-former in nail products and long-wear formulations.
Rocryl 400 Hydroxyethyl methacrylate (HEMA) is found in hydrophilic polymer systems and medical-grade resins for implants and drug delivery.
Rocryl 400 Hydroxyethyl methacrylate (HEMA) is incorporated in textile coatings and printing binders.
Rocryl 400 Hydroxyethyl methacrylate (HEMA) is applied in industrial coatings for metal, glass, and plastic substrates.
Rocryl 400 Hydroxyethyl methacrylate (HEMA) is used in waterborne resins and emulsions as a functional monomer.
Rocryl 400 Hydroxyethyl methacrylate (HEMA) is suitable for reactive diluent systems to improve flow and crosslinking.
Rocryl 400 Hydroxyethyl Methacrylate (HEMA) is widely used in the formulation of dental materials, particularly in the production of dental resins and adhesives, where it helps to improve the bonding strength to enamel and dentin.
Rocryl 400 Hydroxyethyl Methacrylate (HEMA) is employed in the formulation of contact lens materials, where it helps to enhance the flexibility, wettability, and comfort of soft contact lenses.
Rocryl 400 Hydroxyethyl Methacrylate (HEMA) is used in the production of acrylic-based paints and coatings, where it helps improve the durability and adhesion of the coatings to various surfaces.
Rocryl 400 Hydroxyethyl Methacrylate (HEMA) is applied in the manufacture of wound dressings, where it is used to produce hydrogels that provide moisture to the wound and facilitate healing.
Rocryl 400 Hydroxyethyl Methacrylate (HEMA) is used in the formulation of UV-curable coatings, where it helps improve the curing process and enhance the hardness and scratch resistance of the final product.
Rocryl 400 Hydroxyethyl Methacrylate (HEMA) is employed in the production of polymeric adhesives, where it helps improve the adhesive strength and flexibility, making it ideal for bonding various substrates.
Rocryl 400 Hydroxyethyl Methacrylate (HEMA) is used in the formulation of high-performance plastics, where it enhances the material's strength, rigidity, and chemical resistance.
Rocryl 400 Hydroxyethyl Methacrylate (HEMA) is used in the formulation of sealants, where it contributes to improved adhesion, flexibility, and weather resistance.
Rocryl 400 Hydroxyethyl Methacrylate (HEMA) is employed in the production of 3D printing resins, where it enhances the resin's mechanical properties and ensures good resolution and detail during printing.
Rocryl 400 Hydroxyethyl Methacrylate (HEMA) is used in the production of ophthalmic surgical materials, where it is incorporated into hydrogels to improve their stability and performance during procedures.
Rocryl 400 Hydroxyethyl Methacrylate (HEMA) is used in the formulation of polymer composites, where it enhances the bonding between organic and inorganic materials, improving the overall strength and durability of the composite.
Rocryl 400 Hydroxyethyl Methacrylate (HEMA) is employed in the production of adhesives for electronic components, where it ensures strong bonding while maintaining flexibility and durability.
Rocryl 400 Hydroxyethyl Methacrylate (HEMA) is used in the formulation of skin care products, where it helps to create a flexible, durable film that protects the skin while delivering active ingredients.
Rocryl 400 Hydroxyethyl Methacrylate (HEMA) is used in the production of coatings for textiles, where it enhances the fabric's resistance to wear, staining, and moisture.
Rocryl 400 Hydroxyethyl Methacrylate (HEMA) is applied in the production of hair care products, where it helps form a protective coating around hair fibers, improving strength and shine.
Rocryl 400 Hydroxyethyl Methacrylate (HEMA) is used in the formulation of medical devices, where it is employed to produce biocompatible, flexible coatings that improve device performance and comfort.
Rocryl 400 Hydroxyethyl Methacrylate (HEMA) is employed in the production of waterproofing materials, where it improves the material's resistance to water penetration and environmental stress.
Rocryl 400 Hydroxyethyl Methacrylate (HEMA) is used in the manufacture of printing inks, where it helps improve the adhesion, durability, and colorfastness of the inks.
Rocryl 400 Hydroxyethyl Methacrylate (HEMA) is used in the formulation of drug delivery systems, where it helps create hydrophilic polymer matrices for controlled and sustained release of pharmaceuticals.
Rocryl 400 Hydroxyethyl Methacrylate (HEMA) is used in the production of foams and sponges, where it enhances the material's stability, mechanical strength, and resilience.
Rocryl 400 Hydroxyethyl Methacrylate (HEMA) is employed in the production of fiber-reinforced plastics, where it enhances the bonding between fibers and the resin matrix, improving the material's overall mechanical properties.
Rocryl 400 Hydroxyethyl Methacrylate (HEMA) is used in the production of nonwoven fabrics, where it helps improve the fabric’s strength, durability, and resistance to abrasion.
Rocryl 400 Hydroxyethyl Methacrylate (HEMA) is applied in the formulation of anti-fog coatings, where it provides long-lasting clarity and moisture resistance on glass surfaces, including eyeglasses and mirrors.
Rocryl 400 Hydroxyethyl Methacrylate (HEMA) is used in the production of biodegradable plastics, where it improves the material's strength, flexibility, and environmental compatibility.
Rocryl 400 Hydroxyethyl Methacrylate (HEMA) is employed in the formulation of anti-corrosion coatings, where it enhances the protective properties of the coating and improves adhesion to metal surfaces.
Rocryl 400 Hydroxyethyl Methacrylate (HEMA) is used in the production of surgical implants, where it improves the biocompatibility, flexibility, and mechanical properties of the material.
Rocryl 400 Hydroxyethyl Methacrylate (HEMA) is used in the formulation of surface treatment products for electronics, where it helps improve adhesion, moisture resistance, and overall performance.
Rocryl 400 Hydroxyethyl Methacrylate (HEMA) is employed in the production of microelectronics packaging materials, where it enhances the flexibility and adhesion of the packaging to electronic components.
Rocryl 400 Hydroxyethyl Methacrylate (HEMA) is used in the formulation of facial cleansers, where it helps to improve texture and stability, creating a creamy formula that cleanses without stripping the skin's natural moisture.
Rocryl 400 Hydroxyethyl Methacrylate (HEMA) is used in the formulation of anti-fouling coatings, where it helps protect surfaces from the buildup of biological contaminants like algae and bacteria.
DESCRIPTION
Rocryl 400 Hydroxyethyl methacrylate (HEMA) is a clear, colorless to pale yellow liquid with a mild characteristic odor.
It contains both hydrophilic and reactive vinyl groups, enabling it to polymerize readily and interact with aqueous or mixed systems.
Rocryl 400 Hydroxyethyl methacrylate (HEMA) forms strong, flexible polymers with excellent water uptake and biocompatibility.
HEMA contributes to the toughness and elasticity of polymer networks, making it suitable for biomedical and high-performance applications.
It exhibits good adhesion to polar and non-polar surfaces and is compatible with a wide variety of acrylic and methacrylate systems.
Rocryl 400 Hydroxyethyl methacrylate (HEMA) offers balanced curing speed, flexibility, and clarity in cured films.
Rocryl 400 Hydroxyethyl Methacrylate (HEMA) is a key ingredient in the formulation of hydrogels, where its hydrophilic properties enable the material to retain water and provide moisture to the skin or other biological tissues.
Rocryl 400 Hydroxyethyl Methacrylate (HEMA) is highly soluble in water, which makes it suitable for applications where water retention and hydration are important, such as in wound care and drug delivery systems.
Rocryl 400 Hydroxyethyl Methacrylate (HEMA) is an important component in the development of high-performance resins and adhesives, offering improved bonding strength, flexibility, and durability in various industrial applications.
HEMA monomers can be homopolymerized or copolymerized with other acrylates, styrenics, or vinyl monomers.
Its hygroscopic nature makes it particularly effective in moisture-sensitive applications such as hydrogel formation.
Rocryl 400 Hydroxyethyl methacrylate (HEMA) complies with cosmetic and medical-grade purity requirements when appropriately purified.
PROPERTIES
Chemical Formula: C₆H₁₀O₃
Molecular Weight: 130.14 g/mol
Common Name: Hydroxyethyl methacrylate (HEMA)
Appearance: Clear to pale yellow liquid
Odor: Mild, acrylate-like
Boiling Point: Approx. 213°C
Melting Point: -12°C
Density: Approx. 1.07 g/cm³
Refractive Index: Approx. 1.453
Solubility: Miscible with water, ethanol, and organic solvents
Viscosity: Approx. 5–15 mPa·s @ 25°C
pH: Neutral
Flash Point: Approx. 100°C (closed cup)
Stability: Stable under recommended storage conditions
Storage Temperature: Store at 5–25°C
Shelf Life: 12–24 months in sealed containers with inhibitor
FIRST AID
Inhalation:
Move to fresh air and seek medical attention if symptoms occur.
Use respiratory protection in areas with poor ventilation.
Skin Contact:
Wash affected area with soap and water.
Remove contaminated clothing.
Seek medical attention for prolonged irritation.
Eye Contact:
Flush eyes with water for at least 15 minutes.
Seek immediate medical attention if irritation persists.
Ingestion:
Rinse mouth thoroughly.
Do not induce vomiting unless directed by a healthcare professional.
Seek medical attention immediately.
Note to Physicians:
Treat symptomatically.
Avoid exposure to hydrolysis byproducts in large quantities.
HANDLING AND STORAGE
Handling:
Wear gloves, goggles, and protective clothing.
Avoid inhalation and contact with skin or eyes.
Use with adequate ventilation.
Spill and Leak Procedures:
Contain and absorb with inert material.
Ventilate area and clean thoroughly.
Dispose of waste per local regulations.
Storage:
Store Rocryl 400 Hydroxyethyl methacrylate (HEMA) in a cool, dry, well-ventilated place away from heat and ignition sources.
Keep containers tightly sealed and protected from light.
Avoid prolonged storage above 30°C or below 5°C.
Handling Cautions:
Contains polymerization inhibitor—monitor shelf stability.
Prevent contamination with peroxides, acids, and oxidizing agents.
