Brief Introduction:
HENSAMINE D-252E is a modified cycloaliphatic amine epoxy curing agent featuring a light color, solvent-free formulation, excellent mid-coat color retention, fast curing speed, good sanding/grinding performance, and outstanding acid and alkali resistance.
Chemical Composition:
Modified Cycloaliphatic Amine Curing Agent
Specification & Typical Properties:
| Property | Specification / Value | Test Method |
|---|---|---|
| Appearance | Liquid | — |
| Colour (Gardner) | ≤ 10 | GB/T 9281.1 |
| Amine Value (mg KOH/g) | 240 - 300 | Perchloric Acid Method |
| Viscosity @25°C (cps) | 250 - 700 | GB/T 9751.1 |
| Active Hydrogen Equivalent (AHEW) | 98 | Calculated |
| Recommended Mix Ratio (E~51) | 100 : 50 | — |
Note: Table data includes Colour (≤10 Gardner), Amine Value (240–300 mg KOH/g), Viscosity @25°C (250–700 cps), Active Hydrogen Equivalent (AHEW: 98), and Recommended Mix Ratio (100:50 for Epoxy Equivalent ~190).
Curing Characteristics:
- Gel Time (50g @ 25°C): 30–50 minutes
- Linear Drying Time (200µm / 25°C): 4.0 / 6.8 hours
- Curing Hardness (1cm / 15g * 25°C * 24H): 78.0 Shore D
| Curing Property | Specification / Value | Test Method |
|---|---|---|
| Gel Time (50g @ 25°C) | 30 – 50 min | N/A |
| Linear Drying Time (200µm / 25°C) | 4.0 / 6.8 h | GB/T 1728-2020 |
| Curing Hardness (1cm / 15g * 25°C * 24H) | 78.0 Shore D | N/A |
Applications:
- Industrial coatings and protective paints
- Epoxy color mortars, epoxy topcoats, and adhesives for artificial stone
- Electronic encapsulation and composite materials
Storage Properties:
Store in tightly closed original containers in a cool, ventilated, and dry area away from fire sources. Shelf life is at least 12 months under ambient sealed conditions. Note that prolonged storage may cause the color to darken, which is a normal phenomenon.
Handling Precautions:
Use appropriate personal protective equipment (PPE) such as protective gloves and safety glasses. Avoid contact with skin, eyes, and clothing. Flush immediately with water in case of contact and seek medical attention if necessary.
Packaging:
Supplied in 20 kg and 200 kg net iron drums.