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Epoxy Resin 44 (E-44 Standard Equivalent) is a versatile bisphenol-A-based thermosetting resin formulated for demanding industrial applications. With its balanced viscosity (4,500-6,500 mPa·s at 25°C) and high epoxy value (0.44-0.48 eq/100g), it delivers superior adhesion, chemical resistance, and mechanical strength across various substrates.
🔬 Key Technical Specifications
| Property | Value | Test Standard |
|---|---|---|
| Appearance | Transparent pale yellow liquid | Visual |
| Epoxy Value | 0.44-0.48 eq/100g | GB/T 4612 |
| Viscosity (25°C) | 4,500-6,500 mPa·s | GB/T 12007.4 |
| Hardener Ratio | 100:32-35 (Polyamide) | ISO 862 |
| Gel Time (25°C) | 45-60 minutes | ASTM D2471 |
| Full Cure Time | 24-48 hours | ASTM D2471 |
| Heat Resistance | -30°C to +120°C | ASTM D648 |
| Tensile Strength | ≥18 MPa | ASTM D638 |
✅ Key Features & Benefits
✔ Exceptional Adhesion - Bonds strongly to metals, concrete, ceramics, and most plastics
✔ Chemical Resistance - Withstands acids, alkalis, oils, and solvents
✔ Thermal Stability - Maintains performance from -30°C to +120°C
✔ Low Shrinkage -<1% volumetric shrinkage prevents cracking
✔ Versatile Processing - Suitable for casting, coating, and adhesive applications
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