Epoxy resins
We are a manufacturer based in China. We specialize in providing high-quality Epoxy resins for industrial clients across various sectors. Whether you need chemicals consultation or technical support, our team is here to help.
Category：Coating Additives Own Brand：MT /MOQ:100KG /From China/ B2B only.
Introduction
Introduction to Epoxy Resins
Epoxy resins are a class of thermosetting polymers known for their exceptional adhesion, chemical resistance, and mechanical strength. They are widely used in coatings, adhesives, composites, and electronics due to their versatility and durability.
Key Properties of Epoxy Resins
| Property | Description |
|---|---|
| Chemical Structure | Contains epoxide groups (cyclic ethers with a 3-membered ring) |
| Common Types | Bisphenol-A (DGEBA), Bisphenol-F (DGEBF), Novolac, Aliphatic, and Glycidylamine |
| Appearance | Clear to amber viscous liquid or solid (depending on molecular weight) |
| Curing Mechanism | Reacts with amines, anhydrides, or phenols to form cross-linked networks |
| Density | 1.1–1.4 g/cm³ |
| Glass Transition (Tg) | 50–250°C (122–482°F) (varies with curing agent and formulation) |
| Tensile Strength | 70–90 MPa (for cured resins) |
| Chemical Resistance | Excellent against acids, alkalis, and solvents |
Applications of Epoxy Resins
| Industry | Application |
|---|---|
| Coatings & Paints | Protective coatings for metal, concrete, and marine environments |
| Adhesives | Structural bonding in aerospace, automotive, and construction |
| Composites | Fiber-reinforced plastics (FRP) for wind turbines, aircraft, and sports equipment |
| Electronics | Encapsulation of circuits, PCB laminates, and insulating materials |
| Construction | Flooring, grouts, and repair mortars for high-durability applications |
| 3D Printing | High-performance photopolymer resins for additive manufacturing |
Advantages & Limitations
| Advantage | Limitation |
|---|---|
| Strong adhesion to metals, plastics, and ceramics | Brittleness (requires toughening modifiers) |
| Excellent chemical & moisture resistance | Long curing time (can be accelerated with heat) |
| High mechanical & thermal stability | Potential skin irritation (uncured resins) |
| Low shrinkage during curing | Higher cost than polyester/polyurethane resins |
Safety & Handling
| Parameter | Guideline |
|---|---|
| Storage | Keep in sealed containers, away from moisture and amines |
| Curing Agents | Amines (toxic; require PPE), Anhydrides (less hazardous) |
| VOC Emissions | Low in solid/high-molecular-weight epoxies |
| Biodegradability | Non-biodegradable; incineration recommended |
Comparison with Other Resins
| Resin Type | Epoxy | Polyester | Polyurethane |
|---|---|---|---|
| Adhesion | ★★★★★ | ★★★☆☆ | ★★★★☆ |
| Chemical Resistance | ★★★★★ | ★★★☆☆ | ★★★☆☆ |
| Curing Speed | ★★☆☆☆ | ★★★★☆ | ★★★★★ |
| Cost | High | Low | Medium |
Epoxy resins are multi-purpose and high performance products developed using our own technologies. We offers broad portfolio of epoxy resins. For Bisphenol-A (BPA)-based epoxy resins (BE-series), we have solid, liquid, and solvent types, all of which are suitable for coating and composite material. We also offer brominated novolac epoxy resins (BNE-series), phenol novlac epoxy resins (PNE-series), UV masking epoxy resins (TNE-series), and other speciality novolac epoxy resins, which are tailored for special needs (i.e. high heat resistance, low absorbent, low Df, NCO modified, etc.) Our cresol novolac epoxy resins (CNE-series) are designed for semiconductors/printing ink applications.
Bisphenol A epoxy resins
1. Liquid bisphenol A epoxy resin.
2. Solid bisphenol A epoxy resin.
3. Solution type bisphenol A epoxy resin.
Bisphenol F liquid epoxy resin
Liquid bisphenol F epoxy resin.
Brominated epoxy resins
1. Solid brominated epoxy resin.
2. Solution type brominated epoxy resin.
Phenolic epoxy resins
1. Bisphenol A novolac epoxy resin.
2. Phenolic aldehyde epoxy resin (PNE).
3. O-cresol novolac epoxy resin (CNE).
Multifunctional epoxy resins
1. UV blocking epoxy resin (TNE).
2. Trifunctional epoxy resin (TFE).
Halogen-free epoxy resin
Halogen-free epoxy resin.
Other special epoxy resins
1. Dicyclopentadiene phenol novolac epoxy resin.
2. Isocyanate modified epoxy resin.
3. Brominated isocyanate acid modified epoxy resin.
Epoxy resin diluent
1. AGE.
2. BDGE125.
Hardeners
1. Phenol novolac type hardener.
2. BPA novolac type hardener.
3. Special type hardener.
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