Cold Cure Amine System (5°C Cure)
Key Features
- Complete cure at 5°C with acceptable mechanical properties
- Low viscosity maintained at low temperature for good wet-out
- Fast tack-free time (8-16 hours at 5°C) for practical construction schedules
- Compatible with standard BPA epoxy resins
- Essential for winter construction and cold-climate offshore use
Cold Cure Amine System is a specially formulated epoxy hardener designed to achieve complete, high-quality cure at temperatures as low as 5°C — a critical requirement for winter construction, offshore marine applications, and cold-climate composite fabrication. Standard amine hardeners (DETA, TETA, IPDA) lose reactivity rapidly below 10°C and may produce incomplete cure, poor mechanical properties, and high residual monomer content at low temperatures. This cold-cure formulation combines accelerated aliphatic or cycloaliphatic amines with reactive diluents and phenolic accelerators to maintain sufficient reactivity at 5°C, achieving practical tack-free time of 8–16 hours and full cure within 7 days at 5°C. Mechanical properties and chemical resistance at 5°C cure are comparable to standard-grade systems cured at 20°C, with only modest reductions in final Tg. Mix ratio with standard BPA epoxy is approximately 25–35 phr. This product is essential for offshore platform maintenance, cold-storage facility floor coatings, winter bridge deck repair, and field composite lamination in cold climates.
Specifications
| Parameter | Value |
|---|---|
| Type | Accelerated modified amine cold-cure system |
| Shelf Life | 12 months in sealed container |
| Viscosity (10°C) | <500 mPa·s |
| Tack-Free Time (5°C) | 8–16 hours |
| Minimum Cure Temperature | 5°C |
| Mix Ratio (phr on BPA epoxy) | 25–35 phr |
Applications
FAQ
This system is designed for reliable cure at temperatures down to 5°C. At 0°C, cure is possible but very slow (tack-free time >24 hours, full cure >14 days) and final properties may be compromised. Below 0°C, thermal cure is not practical without substrate or ambient heating. For sub-zero applications, consider thermal blankets or heating mats to raise the substrate temperature above 5°C before and during cure.
Direct Contact
💬WhatsApp +86 156 3910 0440Telegram +86 156 3910 0440✉️[email protected]Reply within 24 hours
Related Products
Mannich Base Amine Hardener
Very high reactivity — enables cure down to -5°C
Phenalkamine Hardener (Cashew-Based)
Cures at 0°C and even under water due to hydrophobic phenolic backbone
Modified Aliphatic Amine Adduct (Low Blush)
Low blush formulation — maintains surface quality in humid conditions
Diethylenetriamine (DETA)
CAS 111-40-0
Highly reactive — enables room-temperature cure with short pot life