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Low-viscosity liquid epoxy resin enabling excellent flow and wetting in demanding formulations.
High purity with low chloride content, supporting reliable electrical insulation performance.
Compatible with a broad range of amine and anhydride curing agents for flexible formulation design.
Consistent reactivity and shelf stability under recommended storage conditions.
Designed for low volatile organic compound (VOC) emissions in compliant industrial applications.
Electrical encapsulation and potting compounds for transformers, sensors, and power electronics.
High-performance laminating resins for printed circuit board (PCB) prepregs and copper-clad laminates.
Structural adhesives requiring thermal stability and chemical resistance in aerospace and automotive assemblies.
Composite matrix resins for filament-wound pressure vessels and wind blade components.
Protective coatings for corrosion-resistant industrial flooring and marine infrastructure.
| Chemical Type | Diglycidyl ether of bisphenol-A (DGEBA) |
| Product Form | Clear, low-viscosity liquid |
| Appearance | Water-white to pale yellow, transparent |
| Epoxy Equivalent Weight (EEW) | 185–192 g/eq |
| Viscosity at 25°C | 12,000–16,000 cP |
| Chloride Content | ≤ 800 ppm |
| Softening Point | Not applicable (liquid at room temperature) |
| Primary Applications | Encapsulation, laminates, adhesives, composites, protective coatings |
Q1: What is the primary functional role of Dow DER A 3415 in epoxy formulations?
A: Dow DER A 3415 is a liquid bisphenol-A based epoxy resin designed primarily as a reactive diluent and viscosity modifier. It reduces formulation viscosity without significantly compromising crosslink density or thermal performance, enabling improved processability in coating, adhesive, and encapsulation applications.
Q2: Is Dow DER A 3415 compatible with common amine and anhydride curing agents?
A: Yes, it exhibits broad compatibility with standard aliphatic and aromatic amines, as well as cyclic anhydrides. Its reactivity profile supports conventional epoxy-amine adduct formation and facilitates uniform network development, though optimal stoichiometry and cure schedules should be determined empirically for each system.
Q3: How does Dow DER A 3415 compare to other liquid epoxy resins in terms of volatility and handling safety?
A: As a low-volatility liquid resin, Dow DER A 3415 presents reduced inhalation exposure risk compared to highly volatile reactive diluents. It has negligible vapor pressure at ambient conditions and is typically handled using standard industrial hygiene practices for epoxy materials, including appropriate ventilation and skin protection.
Q4: Can Dow DER A 3415 be used in formulations requiring FDA compliance for indirect food contact?
A: Dow DER A 3415 is not pre-approved for food-contact applications under FDA regulations. Formulators intending to use it in such contexts must conduct full regulatory evaluation—including extractables testing and compliance verification—based on final cured product composition and intended use conditions.
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