2-Hydroxyethyl Methacrylate (HEMA) — CAS 868-77-9
Hydroxyethyl Methacrylate (HEMA) is a hydroxy-functional methacrylate monomer widely used in acrylic resins, coatings, adhesives, polymer modification and specialty materials.
HEMA contains both methacrylate double bonds and hydroxyl functionality, providing excellent polymerization reactivity and crosslinking capability.
Technical Data Sheet (TDS)
Safety Data Sheet (SDS)
Sample Certificate of Analysis (COA)
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Request DocumentsTechnical Specifications
| Parameter | Value | Method |
|---|---|---|
| Purity (monoester) | ≥ 97.0% (98% grade also available) | GC |
| Water Content | ≤ 0.10% | Karl Fischer |
| Acid Value | ≤ 1.0 mg KOH/g | Titration |
| Color | ≤ 30 APHA | Visual |
| Inhibitor (MEHQ) | Stabilized (custom levels available) | HPLC |
| Density (20°C) | Approx. 1.07 g/cm³ | ASTM D4052 |
Key Features
- High purity methacrylate monomer
- Excellent polymerization performance
- Hydroxyl functional group for crosslinking
- Good compatibility with resin systems
- Stable global supply capability
Applications
UV Curing Coatings
Improves coating adhesion, hardness and crosslinking performance.
Acrylic Resins
Functional monomer for hydroxyl acrylic resin synthesis.
Automotive & Industrial Coatings
Provides durability, weather resistance and chemical resistance.
Adhesives & Sealants
Improves bonding strength and formulation flexibility.
Medical Polymer Materials
Specialty polymer systems requiring hydrophilic properties.
Packaging & Supply
| Packaging | Capacity | Use |
|---|---|---|
| Standard Drums | 200 kg steel or HDPE drums | LCL & FCL container shipments |
| IBC Totes | 1,000 kg IBC containers | Standard industrial users |
| Bulk ISO Tank | 20,000–24,000 kg | Bulk shipments for large industrial buyers |
Storage & Safety
| Item | Requirement |
|---|---|
| Storage Temperature | 15–25°C in a dry, well-ventilated area away from direct sunlight |
| Inhibitor & Air Blanket | Requires oxygen in the vapor space to maintain MEHQ inhibitor effectiveness; do not store under nitrogen or inert gas |
| Shelf Life | 12 months from manufacturing date in unopened original containers |
FAQ
What is 2-Hydroxyethyl Methacrylate (HEMA) and what are its main applications?
2-Hydroxyethyl Methacrylate (HEMA) (CAS 868-77-9) is a functional hydroxyl monomer used primarily in automotive coatings, thermosetting acrylic resins, UV-curable inks, adhesives, and specialty polymers.
What packaging sizes are available for export?
We supply HEMA in 200 kg steel/plastic drums, 1,000 kg IBC totes, and ISO tanks for large bulk orders.
What is the shelf life and proper storage condition for HEMA?
The shelf life is 12 months when stored in unopened original containers at 15–25°C in a cool, ventilated area with air blanket presence.