PRO-SET Infusion Hardeners
Description
PRO-SET® Infusion Hardeners – Fast, Medium, Slow & Extra Slow
PRO-SET® Infusion Hardeners are engineered for vacuum infusion/VARTM where predictable room-temperature cure, excellent fiber wet-out, and high mechanical properties are essential. Pair any speed with PRO-SET INF-114 Infusion Resin to tune open time to your shop temperature and part size. Hardeners may be blended to achieve intermediate gel times.
Choose Your Working Time
- Fast – INF-210: Short working time for small parts, cool shops, or quick turnarounds.
- Medium – INF-211: Balanced gel time for most day-to-day infusion projects.
- Slow – INF-212: Longer open time to wet out larger layups and complex schedules.
- Extra Slow – INF-213: Maximum room-temperature open time; ideal for very large parts or warm conditions.
Available Package Sizes
- 0.33 Gallon
- 1.4 Gallon
- 4.8 Gallon
- 17.6 Gallon
Why PRO-SET Infusion Systems
- Consistent, controllable cure profile at room temperature with reliable post-cure capability.
- Excellent wet-out and low blush for clean, cosmetic parts with minimal print-through.
- High strength and toughness for marine, automotive, aerospace, wind, and industrial composites.
- Four speeds (blendable) let you match pot life and clamp-off to shop temperature and part size.
Mixing & Use
Mix only with PRO-SET INF-114 Infusion Resin at the specified hardener ratio (see TDS). Measure accurately, mix thoroughly (scrape sides and bottom), and verify uniform color. Hardeners include a blue dye; when combined with the resin’s yellow color, a uniform green mix provides a quick visual quality check. Follow all handling, safety, and ventilation guidelines.
Applications
- Vacuum infusion/VARTM of hulls, decks, bulkheads, and composite panels.
- Automotive & motorsports body panels, interiors, and aerodynamic structures.
- Wind energy components, architectural skins, tooling facesheets, and general industrial laminates.
Notes: This listing is for Infusion Hardeners only. Purchase PRO-SET INF-114 Resin separately. Cure speed, gel time, and sandability depend on hardener selection, ambient temperature, and part size. Product ships as HAZMAT where applicable. Refer to the current PRO-SET INF Technical Data Sheet for mix ratios, gel times, and post-cure schedules.
Specifications
PRO SET Infusion Resin Hardener Comparison (Verified)
| Speed | Typical Working/Open Time* | Initial Gel / “Green” | Best For | Notes |
|---|---|---|---|---|
| Fast (INF-210) | ~75-90 min | ~2-3 hr | Small parts, cool shops, quick turn | Minimize batch size to control exotherm. |
| Medium (INF-211) | ~3-4 hr | ~8 hr | General laminating, day-to-day work | Balanced pot life and cure speed. |
| Slow (INF-212) | ~6-7 hr | ~12 hr | Large layups, complex schedules | Longer wet-out window at room temp. |
| Extra Slow (INF-213) | ~10 hr | ~14-18 hr | Very large parts, warmer shops | Maximum room-temp working time. |
*Times are approximate; actual values vary with temperature, batch size, and layup. †Published at ~29 °C / 85 F; at ~25 °C / 77 °F expect slightly longer.
Use only with PRO-SET Infusion Resin (Z-1758).