DOW DEN431 from Dow's advanced epoxy resin series is an ultra-low viscosity liquid novolac formulation designed for structural reinforcement applications. This high-performance resin combines exceptional flow characteristics with the superior chemical resistance of novolac chemistry, making it ideal for demanding composite applications requiring deep penetration and thorough wet-out of reinforcing materials.
Ultra-low viscosity - Superior substrate penetration and wetting
Novolac chemistry - Enhanced chemical and thermal resistance
Processing efficiency - Easy handling and excellent flow properties
High reactivity - Fast curing with appropriate hardeners
Mechanical strength - Excellent composite performance
Composite tooling - Molds and fixtures manufacturing
Structural laminates - High-performance composite parts
Aerospace components - Critical structural elements
Wind turbine blades - Reinforced composite structures
Automotive composites - Lightweight structural parts
| Epoxy Equivalent Weight | g/eq | 172-178 |
| Viscosity at 25°C | cP | 1,000-1,500 |
| Color (Gardner) | - | ≤2 |
| Density at 25°C | g/cm³ | 1.18-1.20 |
| Flash Point | °C | >200 |
| Hydrolyzable Chloride | ppm | ≤500 |
| Weight per Gallon | lb/gal | 9.8-10.0 |
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