Epoxy Resin 128 is produced from bisphenol-A and epichlorohydrin, resulting in a clear, colorless to light yellow liquid with 100% non-volatile content. It is widely recognized as the most versatile bisphenol A type liquid epoxy resin in the industry.
Core Features and Performance
- Excellent Processability: Features good fluidity, making it easy to mix, defoam, cast, and coat. It offers a moderate pot life for convenient construction and can be cured at room or elevated temperatures.
- Superior Cured Properties: The cured product exhibits excellent mechanical strength, high adhesion, and outstanding chemical and heat resistance.
- Dimensional Stability: Provides excellent electrical insulation and high dimensional stability, ensuring the product is not easy to deform after curing.
- High Purity: Maintains low hydrolysable chlorine content (Max. 0.05%) for sensitive electronic and industrial applications.
Technical Parameters
| Item | Details |
| Product Name | Epoxy Resin |
| Product Model | 128 (Also known as YD-128, E-51, 618) |
| Composition | Diglycidyl Ether of Bisphenol A (DGEBA), produced from bisphenol-A and epichlorohydrin |
| Appearance | Clear, colorless to light yellow liquid |
| Non-volatile Content | 100% |
Application Scope
This resin is a fundamental component in a wide range of fields:
- Coatings: Solvent-based and solvent-free systems including anti-corrosion, marine, automotive primers, and epoxy floor coatings.
- Adhesives: Structural adhesives, construction planting, and concrete repair adhesives.
- Electronics: Component potting, circuit board encapsulation, and insulation casting.
- Civil Engineering: Structural reinforcement, waterproof plugging, and bridge pavement.
- Composites: FRP and carbon/glass fiber reinforced products.
Storage & Safety
- Storage: Store in a dry, clean, and well-ventilated warehouse; avoid direct sunlight and keep away from heat/fire. The storage period is at least 12 months.
- Handling: Avoid direct contact with skin and eyes as it is low-toxic but irritating. If contact occurs, wash skin with soap and water; for eyes, flush for 15 minutes and seek medical attention.
Common Problems & Solutions
| Common Problems | Solutions |
| Haziness or crystallization | Warm the product to 55-60℃ with stirring to restore it to a clear liquid state, which does not affect its performance. |
| Poor curing effect | Check the type and dosage of curing agent, ensure uniform mixing; adjust the curing temperature and time according to the application scenario. |
| Poor adhesion | Clean the substrate surface to remove oil, dust and other impurities; select a suitable curing agent and adjust the mixing ratio to improve adhesion. |
| Excessive viscosity affecting construction | Properly increase the temperature to reduce viscosity; add appropriate diluents (compatible with the system) to adjust the fluidity. |