Precision Curing Agent for Cold Vulcanizing Systems
SUMI Hardener
SUMI Hardener is a specially formulated curing agent designed for use with SUMI Cold Vulcanizing Cement. It activates the cross-linking process to deliver a strong, durable, and flexible bond in conveyor belt splicing and rubber repair applications.
Key Features
- Optimized curing ratio for consistent results
- Fast activation time
- Compatible with SUMI CVC systems
- Wide operating temperature range
- Extended shelf life when sealed
- Easy to mix and apply
Technical Specifications
| Type | Isocyanate-based |
| Color | Clear / Light amber |
| Mix Ratio | As per SUMI CVC instructions |
| Pot Life | 30–45 minutes |
| Activation Temp | 15°C–40°C |
| Shelf Life | 12 months (sealed) |
Application Process
1 Ensure SUMI CVC is ready for application.
2 Ensure SUMI CVC is ready for application.
3 Mix thoroughly for 1–2 minutes.
4 Apply immediately to prepared surfaces.
5 Join and press within pot life window.
Applications
- Conveyor belt splicing
- Rubber lining repairs
- Rubber-to-rubber bonding
- Belt edge sealing
- Patch repairs on conveyor belts
Packaging
Available in 1 kg, 5 kg, and 20 kg containers.
Storage
Store sealed in a cool, dry place. Protect from moisture. Use within 12 months of manufacture.