• Guaranteed high purity: ≥96.0% minimum assay (actual 98.21% GC), ensures consistent curing performance
• Low moisture content: ≤0.50% maximum (actual 0.20% KF), prevents foaming and improves product reliability
• Excellent color stability: ≤10 Gardner color (actual 8 Gardner at 20℃), suitable for light-colored products
• Precise viscosity control: 3000-6000 CPS (actual 4000 CPS at 25℃), easy to handle and mix
• Medium temperature curing: Provides balanced curing speed and pot life at 80-120℃
• Superior mechanical properties: Cured epoxy products exhibit excellent tensile strength, heat resistance and chemical resistance
• Low volatility: Low vapor pressure, reduces emissions during processing and improves workplace safety
• Good compatibility: Compatible with most epoxy resins, curing agents and additives
• Multi-functional performance: Serves as epoxy curing agent, polyurethane catalyst and rubber vulcanization accelerator
• Strict quality control: Batch-to-batch consistency guaranteed, suitable for high-precision electronic applications

2-Ethyl-4-methylimidazole, commonly known as 2E4MI or EMI, is a high-performance imidazole derivative curing agent and catalyst with CAS number 931-36-2. Its molecular formula is C6H10N2, with a molecular weight of 110.16 g/mol. Our industrial grade product appears as a yellowish viscous liquid, with strict control over purity, moisture, chromaticity and viscosity to meet the stringent requirements of electronic and industrial applications.

As a widely used medium temperature epoxy curing agent, 2E4MI provides excellent balance between curing speed and pot life. It cures epoxy resins at 80-120℃ to form products with outstanding mechanical properties, thermal stability and chemical resistance. It is also extensively used as a catalyst in polyurethane production, a vulcanization accelerator in rubber industry, and an intermediate in pharmaceutical synthesis.

Our 2-ethyl-4-methylimidazole is produced with advanced synthesis and purification technology, with full batch traceability and complete supporting quality documents. We can provide customized specifications to meet specific customer requirements and ensure long-term stable bulk supply for global industrial manufacturers.

Appearance: Yellowish viscous liquid

FOB Reference Price: USD 15.00 - 25.00 / Kilogram (Industrial Grade)

Packaging: 25kg plastic drum; 200kg UN-approved steel drum; Customized packaging available upon request

MOQ: 1 Metric Ton (25kg sample drum supported for testing and evaluation)

Storage Conditions: Store in tightly sealed containers in a cool, dry and well-ventilated warehouse at 5-30℃; Keep away from heat sources, open flames and strong oxidizing agents; Avoid direct sunlight and moisture; 24-month shelf life under proper storage conditions

Transport Classification: 8 (Corrosive Liquid)

Packing Group: III

• 2E4MI
• EMI
• 2-Ethyl-4-methylimidazole
• 2-Ethyl-4-methyl-1H-imidazole
• CAS 931-36-2
• Epoxy Resin Curing Agent 2E4MI
• Polyurethane Catalyst EMI
• Industrial Grade Imidazole

1. Epoxy Resin Industry (Core Application): Used as primary curing agent for epoxy resins in electronic potting compounds, encapsulants, printed circuit boards (PCBs) and composite materials. Provides excellent electrical insulation and thermal stability.
2. Adhesives & Sealants Industry: Applied as curing agent for structural adhesives, epoxy adhesives and sealants. Improves bond strength, heat resistance and durability.
3. Coatings Industry: Used as curing agent for high-performance epoxy coatings, powder coatings and anti-corrosion coatings. Enhances coating hardness, adhesion and chemical resistance.
4. Polyurethane Industry: Applied as catalyst in polyurethane foam production and polyurethane elastomer manufacturing. Accelerates curing reaction and improves product properties.
5. Rubber Industry: Used as vulcanization accelerator for rubber products. Improves vulcanization speed and rubber mechanical properties.
6. Pharmaceutical Industry: Used as intermediate in the synthesis of various pharmaceutical compounds and active pharmaceutical ingredients (APIs).

A1: The typical curing conditions for 2E4MI with bisphenol A epoxy resins are: 80℃ for 2-4 hours followed by post-curing at 120℃ for 2-4 hours. The exact curing conditions depend on the specific epoxy resin type, formulation and desired product properties.

A2: The recommended dosage of 2E4MI ranges from 2% to 8% by weight of epoxy resin, depending on the desired curing speed, pot life and final properties. A dosage of 3-5% is most commonly used for general purpose applications.

A3: Yes, 2E4MI is highly compatible with other epoxy curing agents such as aromatic amines, anhydrides and dicyandiamide. Combining 2E4MI with other curing agents can adjust curing speed, pot life and final product properties to meet specific application requirements.

A4: 2E4MI is a corrosive substance and may cause skin and eye irritation. Required PPE includes:

• Chemical-resistant gloves (nitrile or butyl rubber)
• Safety goggles with face shield
• Chemical-resistant apron and protective clothing
• Respiratory protection if working in poorly ventilated areas

A5: In case of spill:

• Wear appropriate PPE
• Contain the spill to prevent spread
• Absorb with inert material such as sand or vermiculite
• Collect in suitable closed containers for disposal
• Wash the area thoroughly with soap and water
• Do not allow product to enter drains or waterways

A6: 2E4MI has a shelf life of 24 months when stored in tightly sealed original containers at temperatures between 5-30℃. It should be stored in a cool, dry and well-ventilated area away from direct sunlight, heat sources and incompatible materials. Keep containers tightly closed when not in use to prevent moisture absorption and contamination.