Accelerators

Epoxy accelerators are typically used in formulations that require faster cure speed, improved early strength, or better low-temperature reactivity. They are especially valuable in applications such as flooring mortars, adhesives, composite layups, protective coatings, and hybrid systems where processing time and productivity are key factors. Accelerators are compatible with polyamines, amidoamines, and anhydrides, and are often used in both ambient-cure and heat-cure epoxy systems.

Self-Leveling Floors
Accelerates cure in epoxy screeds and leveling mortars, enabling faster walk-on times
Adhesives & Sealants
Boosts early strength and reduces clamping time in structural or flexible bonding systems
Composite Molding
Improves demolding speed in pultrusion, RTM, and filament winding processes
Low-Temperature Curing
Ensures proper polymerization in ambient or winter conditions below 10 °C
Fast-Dry Primers & Coatings
Reduces drying time for epoxy primers and midcoats, improving recoat intervals
Hybrid Epoxy–PU Systems
Balances gel time and reactivity in epoxy–polyurethane or epoxy–polyester blends

These additives can also be used in hybrid epoxy–polyurethane systems to support the epoxy-side reactivity and help balance the overall gel time. While tertiary amine accelerators do not directly catalyze isocyanates, they can improve compatibility and performance in two-component hybrid coatings, membranes, and flooring products. Typical dosage ranges from 0.2–2% of the epoxy resin mass. Excessive use may shorten pot life or lead to uncontrolled curing — formulation testing is strongly recommended.

Overview of Accelerators

Our accelerator portfolio includes carefully selected grades to support faster curing and improved process efficiency across epoxy formulations. These accelerators are suitable for both ambient and heat-cured systems and are compatible with a range of epoxy hardeners. This section presents available options with key technical values including viscosity, amine hydrogen equivalent weight (AHEW), and recommended mix ratios. For detailed data, application notes, or custom recommendations, please reach out to our technical team.

Accelerators
Accelerators

Advantages of Epoxy Accelerators:

  • Improves cure speed and productivity
  • Enables low-temperature curing (<10 °C)
  • Enhances handling of thick applications
  • Supports rapid demolding and early strength
  • Compatible with polyamines, amidoamines, anhydrides, and hybrid epoxy formulations, including epoxy–polyurethane and epoxy–polyester systems

Need help integrating an accelerator into your system?

Brno Chemie offers technical advice on proper dosage, compatibility with curing agents, and performance optimization.

For TDS or pricing inquiries, please contact us or submit the request form below.

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