Ripoxy R-804J is a high-performance, versatile bisphenol A-type epoxy vinyl ester resin manufactured by Showa Denko K.K. of Japan. The following is a systematic introduction to this product:
- Properties:
- Excellent Chemical Resistance: Offers outstanding resistance to acids, alkalis, and solvents, making it suitable for the manufacture of chemical equipment.
- High mechanical strength: Offers high strength, making it suitable for applications requiring mechanical performance, such as fiberglass-reinforced plastics (FRP).
- Excellent Fatigue Strength and Toughness: Offers superior durability and toughness, making it suitable for applications requiring high long-term stability.
- Advantages:
- Low viscosity: The resin has low viscosity, making it easy to use and process.
- Fast curing: The short curing time helps improve production efficiency.
- Long Shelf Life: The resin has a long shelf life, making it suitable for long-term storage and use.
- Low Bubble Formation: Minimal bubble formation during curing helps produce high-quality finished products.
- Compatible with BPO/DMA Curing: Can be cured using a benzoyl peroxide/dimethylaniline (BPO/DMA) curing system.
- Applications:
- Chemical Industry: Manufacturing of chemical equipment such as reaction vessels, pipes, absorbers, and air ducts.
- Environmental protection: Lining materials for wastewater treatment systems.
- Shipbuilding: Manufacturing of yacht and ship components.
- Construction: Building materials such as floor linings and waterproof linings.
- Manufacture of high-strength FRP.
- Performance Data:
- Liquid Resin: Clear yellow in appearance, with a viscosity ranging from 2.0 to 3.5 dPa·s at 25°C and a cure time ranging from 16.0 to 25.0 minutes.
- Cured Resin: Exhibits excellent flexural and tensile strength as well as heat deflection temperature, making it suitable for applications requiring high strength and heat resistance.
- Curing Characteristics:
- MEKPO/Co-Oct or BPO/DMA curing systems may be used; specific curing times vary depending on temperature and formulation ratios.
- Precautions for Use:
- For industrial safety and health, be aware of the styrene content; ensure adequate ventilation and wear appropriate protective equipment.
- Keep away from heat sources or fire during storage and handling to prevent accidents.
- When using curing agents and accelerators, ensure they are mixed in the correct proportions to prevent explosive reactions.