Polyamide Resin Curing Agent
Paint chemicals 2025-03-21
CAS No. 68082-29-1
Content 99%
Packing 190kg/drum 900kg/IBC
Names and Identifiers
| Name | Fatty acids, C18-unsatd., dimers, polymers with tall-oil fatty acids and triethylenetetramine |
| Synonyms | POLYAMIDOAMINE) Fatty acids, C18-unsatd., dimers, polymers with tall-oil fatty acids and triethylenetetramine |
| CAS | 68082-29-1 |
| EINECS | 500-191-5 |
68082-29-1 – Physico-chemical Properties
| Density | 0.969[at 20℃] |
| Water Solubility | 40mg/L at 25℃ |
| Vapor Presure | 0Pa at 25℃ |
68082-29-1 – References
| LogP | 10.34 at 25℃ |
1. Basic Chemical Properties
| Property | Specification |
|---|---|
| CAS Number | 68082-29-1 |
| Chemical Type | Polyamide resin (amine-terminated) |
| Appearance | Amber to brown viscous liquid |
| Viscosity (25°C) | 5.000–20.000 mPa·s |
| Amine Value | 200–400 mg KOH/g |
| Solubility | Soluble in alcohols, ketones; insoluble in water |
| Density (25°C) | 1.00–1.10 g/cm³ |
| Flash Point | >200°C |
| Reactivity | Cures epoxy resins at 5–40°C |
2. Applications & Performance
| Application | Function | Curing Conditions | Typical Mix Ratio (Epoxy:Agent) |
|---|---|---|---|
| Coatings | Ambient-cure hardener | 10–30°C, 24–72 hrs | 1:1 to 2:1 (by weight) |
| Adhesives | Flexible curing agent | RT–80°C, 4–24 hrs | 1:0.5 to 1:1 |
| Civil Engineering | Low-T°Cure for concrete repair | 5–25°C, 7 days | 1:0.7 to 1:1.2 |
| Composites | Toughening agent | RT–120°C, 2–12 hrs | 1:0.8 to 1:1.5 |
Key Features:
Low-temperature curability (down to 5°C)
Flexible film formation (improves impact resistance)
Chemical resistance (water, oils, mild acids/alkalis)
Long pot life (60–120 min at 25°C)
3. Safety & Handling
| Parameter | Specification |
|---|---|
| Skin Contact | Moderate irritant (wear gloves) |
| Eye Contact | Severe irritant (goggles required) |
| Inhalation Risk | Low (use ventilation if heated) |
| Storage Stability | 12 months at 10–30°C (in sealed containers) |
| Regulatory Compliance | REACH, TSCA listed |
| Disposal | Incineration or chemical treatment |
Summary
This versatile polyamide curing agent enables ambient-temperature epoxy curing with balanced flexibility and chemical resistance, ideal for coatings, adhesives, and infrastructure repairs. Requires standard amine-handling precautions.
Notes:
RT = Room Temperature (23±2°C)
Mix ratios vary by epoxy system and application requirements
Contains no volatile organic compounds (VOCs)
