DOW DER 669E represents Dow Chemical's high-performance solid epoxy resin solution, engineered for demanding coating applications requiring exceptional durability. This specialized bisphenol-A based formulation delivers superior chemical resistance and mechanical properties, making it particularly suitable for industrial environments with aggressive operating conditions.
Engineered durability - Exceptional resistance to chemical degradation
Thermal performance - Stable under continuous high-temperature exposure
Mechanical strength - Outstanding hardness and impact resistance
Formulation versatility - Compatible with multiple curing systems
Processing efficiency - Excellent solubility in common solvents
Heavy-duty industrial coatings - Chemical processing equipment
Marine protective systems - Offshore platform coatings
Tank and vessel linings - Corrosion-resistant interior barriers
Pipeline protection - Oil and gas transmission coatings
Automotive undercoatings - Vehicle chassis protection
| Epoxy Equivalent Weight | g/eq | 500-550 |
| Softening Point | °C | 70-80 |
| Color (Gardner) | - | ≤2 |
| Melt Viscosity at 150°C | cP | 2,000-4,000 |
| Hydrolyzable Chloride | ppm | ≤500 |
| Density at 25°C | g/cm³ | 1.18-1.20 |
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