Master Bond EP64 is a two component epoxy system with a long working life at ambient temperature. It has a forgiving 100-to-5 mix ratio by weight and, once combined, forms a moderate viscosity mixture that flows well. A 100 gram batch offers a 12–24 hour working life at room temperature. The recommended cure schedule is 80-90°C for 4-5 hours, followed by a post cure at 120-130°C for 2-3 hours. The epoxy contains no solvents or diluents and has low shrinkage upon curing.
The system bonds well to a wide variety of substrates such as metals, plastics, rubbers, ceramics and composites. Upon curing, EP64 features an exceptionally high glass transition temperature of 210°C which ultimately translates into superb temperature and chemical resistance. The epoxy withstands a host of aggressive chemicals including acids, bases, and many solvents. EP64 is a dependable electrical insulating material. The service temperature range is -60°F to +450°F. The color of Part A is clear and Part B is dark brown. This epoxy provides reliable bonding and sealing performance for aerospace, electronics, specialty OEM, and optical applications requiring high Tg, outstanding chemical resistance, and stable performance under vacuum conditions.
Product Advantages
- Very long working life
- Good flow properties
- Very high glass transition temperature
- Resists aggressive chemicals at higher temperatures