Description
1. Product Overview
Epoxy Resin (Bisphenol-A) DER 331 is a high-performance liquid epoxy resin widely used as a foundational raw material in advanced thermoset systems. It is primarily utilized in coatings, adhesives, composites, and electrical insulation applications due to its excellent mechanical strength, chemical resistance, and adhesion properties. This resin serves as a critical building block in industrial formulation systems where durability and performance consistency are essential. Its market significance lies in its versatility across multiple high-value industries, making it a globally benchmarked epoxy standard. DER 331 is strategically important for manufacturers seeking scalable, high-reliability polymer systems.
2. Key Specifications & Technical Characteristics
- Chemical Composition: Bisphenol-A based epoxy resin (Epichlorohydrin + BPA derived polymer)
- CAS Number: 25068-38-6
- Epoxy Equivalent Weight (EEW): ~182–192 g/eq (typical range)
- Physical Form: Viscous liquid
- Color: Clear to pale yellow
- Viscosity: Medium to high (temperature dependent)
- Density: ~1.15–1.20 g/cm³ at 25°C
- Purity/Grade: Industrial / Commercial grade
- Packaging Options: 20 kg pails, 200 kg steel drums, IBC tanks (1,000 kg)
- Shelf Life: 12–24 months under recommended storage conditions
3. Core Industrial Applications
DER 331 epoxy resin is extensively used across high-performance industrial sectors including coatings, construction, automotive, aerospace, and electronics. It is a primary binder in protective coatings for corrosion resistance in harsh environments and is widely applied in structural adhesives for metal, composites, and engineered materials. In electrical and electronic applications, it provides superior insulation and thermal stability in encapsulation systems. Compared to alternative resins, it delivers superior crosslinking efficiency, mechanical integrity, and long-term durability, making it a preferred choice for mission-critical applications.
4. Competitive Advantages
- High Consistency: Tight specification control ensures batch-to-batch reliability
- Strong Supply Chain Reliability: Scalable production for continuous industrial demand
- Logistics Efficiency: Available in multiple packaging formats for global shipment optimization
- Cost-Performance Balance: Competitive pricing relative to high-performance epoxy alternatives
- Technical Versatility: Compatible with a wide range of curing agents and formulation systems
- Documentation Support: Full COA, MSDS, and technical data sheets available for industrial qualification
- Sustainability Alignment: Supports long-life coatings and reduced maintenance cycles in end-use applications
5. Commercial & Supply Information
- Minimum Order Quantity (MOQ): Bulk 20 MT
- Standard Supply Format: Industrial bulk shipments (drums / IBC / tanker loads)
- Loading Capacity:
- Approx. 16–20 MT per 20’ FCL (depending on packaging type)
- Up to 20–22 MT in optimized bulk liquid tanker configurations
- Delivery Scope: Global export supply available under industrial shipping terms
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