KEY FEATURES 

Imicure EMI-24 curing agent is 2-ethyl-4-methyl Imidazole. 

The positioning of the alkyl groups allows both nitrogen atoms to participate actively in the cure. The secondary nitrogen, much like an aliphatic amine curative, opens an epoxide ring which contributes to the unusually high degree of crosslinking found in systems cured with Imicure EMI-24 curing agent. The tertiary nitrogen acts like a tertiary amine to accelerate the polymerization reaction, and also gives a fast B-stage cure. The exceptional performance of Imicure EMI-24 curing agent is attributable to this dual functionality.

BENEFITS

Imicure EMI-24 curing agent provides the following advantages over other imidazole and amine curing agents and accelerators:

• Printed Circuit Board Laminates—shorter B-stage cure times, reduced solvent requirements, excellent grass transition (Tg) temperatures.

• Filament Winding Applications—long pot life, excellent physical properties, high heat distortion temperatures.

• Casting Applications—long pot life, ease of handling, high heat distortion temperatures.

• Adhesives—outstanding adhesion to wood, metal and glass.

• Coatings—excellent shelf stability

USAGE LEVEL

Typical use concentrations, depending on the resin system used and the cure conditions, are in the range of 0.5–5.0 parts per hundred resin. These levels yield systems with excellent properties and handling characteristics at low applied cost.

SHELF LIFE

At least 24 months from the date of manufacture in the original sealed container at ambient temperature. Store away from excessive heat and humidity in tightly closed containers. 

STORAGE AND HANDLING

Refer to the Safety Data Sheet for Imicure EMI-24 curing agent.