Epoxy Acrylate Oligomer (EA) for UV Adhesives
CAS Number: 55818-57-0
Epoxy Acrylate Oligomer (EA) is produced by reacting bisphenol A epoxy resin with acrylic acid, combining fast UV cure speed with high hardness, excellent chemical resistance, and strong adhesion to glass and metals. It is the most widely used UV-curable oligomer in adhesive applications, offering a high refractive index and low cure shrinkage. EA-based UV adhesives are used extensively in glass bonding, optical assemblies, electronics, and UV-curable printing ink applications.
Technical Specifications
| color | ≤3 (Gardner) |
| viscosity | 5,000–30,000 mPa·s (25 °C, grade dependent) |
| appearance | Pale yellow viscous liquid |
| inhibitorContent | 500–1000 ppm MEHQ |
| acrylicAcidContent | ≤0.2% |
Applications
- UV glass bonding adhesives
- Optical assembly adhesives (lens, prism)
- Electronics UV conformal coatings
- UV-curable printing inks
- Optical fiber and display bonding
Key Features
- Very fast UV cure speed
- High hardness and chemical resistance after cure
- Excellent adhesion to glass and metal substrates
- High refractive index for optical applications
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CAS Number
55818-57-0
Category
Adhesive / Sealant AdditivesAvailability
In StockSample
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