4:1 Epoxy Hardener - Fast Cure
Description
4:1 Epoxy Hardener – Fast Cure Hardener for Thin & Thick Epoxy Resin Systems
The 4:1 Epoxy Hardener – Fast Cure is designed for fabricators who need maximum speed and a rigid final laminate. This hardener offers an extremely fast cure profile, making it ideal for small parts, quick turnaround repairs, and production environments where time is critical.
Mixed at a 4:1 ratio (4 parts epoxy resin : 1 part hardener), this system delivers high strength and excellent hardness when used with our Thin Epoxy Resin or Thick Epoxy Resin. The rapid gel and through-cure help reduce clamp time and keep projects moving.
Key Features & Benefits
- Fast Cure Speed – Our quickest epoxy hardener for rapid turnaround and high-rigidity laminates.
- 4:1 Mix Ratio – Simple 4 parts resin to 1 part hardener by volume.
- Pot Life – Approx. 15 minutes at 80°F (27°C), depending on mass and temperature.
- Set Time – Typically 1–2 hours at 80°F.
- Dry Time – Reaches handling cure in approx. 3–4 hours.
- High Rigidity – Produces a very stiff, hard laminate for demanding structural applications.
- Compatible Systems – Formulated for use with both Thin Epoxy Resin and Thick Epoxy Resin.
Recommended Applications
- Fast-turnaround composite laminates
- Fiberglass and carbon fiber repairs
- Small parts, patch work, and structural bonding
- Boat and marine repair where quick service is required
- Shop and production environments needing rapid cure
Usage & Handling Notes
- Best used when ambient temperature is around 80°F (27°C) for the cure profile listed.
- This product may blush, particularly in cool or humid conditions.
- The hardener has a shelf life of approximately one year when stored properly.
- For best results and full mechanical properties, use the resin shortly after purchase and follow all recommended mix ratios and safety guidelines.
For projects that demand a fast cure, high rigidity, and professional-grade performance, 4:1 Epoxy Hardener – Fast Cure is the ideal choice for both repair and production composite work.