Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Dow DER 663U Solid Epoxy Resin

Dow DER 663U Solid Epoxy Resin is a high-purity, low-bromine bisphenol-A epoxy resin from Dow’s DER™ series. Designed for demanding electrical encapsulation and powder coating applications, it offers excellent thermal stability, low ionic impurities, and consistent melt viscosity. Its controlled molecular weight ensures reliable reactivity and superior dielectric performance in high-voltage insulation systems.
  • dow der 663u solid epoxy resin_d0516a27
  • dow der 663u solid epoxy resin_d0516a27

Features Of Dow DER 663U Solid Epoxy Resin

  1. High-purity bisphenol-A based solid epoxy resin with consistent molecular weight distribution.

  2. Excellent thermal stability and low volatile organic compound (VOC) content.

  3. Superior compatibility with common curing agents, including anhydrides and aromatic amines.

  4. Optimized melt viscosity for efficient processing in powder coating and filament winding applications.

  5. Reproducible epoxy equivalent weight (EEW) supporting precise stoichiometric formulation control.

Typical Applications Of Dow DER 663U Solid Epoxy Resin

  1. Powder coatings for architectural aluminum and industrial metal substrates.

  2. Electrical encapsulation and potting compounds for transformers and insulators.

  3. Filament-wound composite tanks and pressure vessels requiring high chemical resistance.

  4. Adhesives for structural bonding in aerospace and automotive assemblies.

  5. High-performance composites in wind turbine blade root sections and marine components.

Specifications Of Dow DER 663U Solid Epoxy Resin

Chemical TypeBisphenol-A based solid epoxy resin
Product FormOff-white to light tan granular solid
AppearanceFree-flowing granules, no visible impurities
Epoxy Equivalent Weight (EEW)475–495 g/eq
Melt Viscosity (150°C)8,000–12,000 cP
Gardner Color≤ 2
Volatile Content (150°C, 2 hr)≤ 0.3 wt%
Primary ApplicationsPowder coatings, electrical encapsulation, structural composites


Get in Touch with ERICW
Let competitive chemical materials go global.

Your Name *

Your Email *

Your Phone

Country

Your Message *