EP62-1HT Product Information

Two component, lower viscosity epoxy system featuring superior temperature and unsurpassed chemical resistance, especially to acids

Key Features

Long open time at room temperature
Cures at moderately elevated temperatures
Superb physical strength profile
NASA low outgassing

Product Description

Master Bond EP62-1HT is a two component epoxy system with a long working life at ambient temperature. The mix ratio is a forgiving 100 to 5 by weight. Upon mixing, it is a moderate viscosity system that flows well. The working life of 100 grams is 12-24 hours at room temperature.

There are a few cure schedule options, all requiring the addition of heat. These include 60-70 minutes at 176-212°F [80-100°C] or 20-30 minutes at 257°F [125°C]. To obtain optimum properties, post curing at 212-302°F [100-150°C] for 3-5 hours is recommended. Upon curing with the optimum schedule EP62-1HT displays robust temperature resistance with a glass transition temperature ranging from 150-155°C. It is highly resistant to many aggressive chemicals, most notably acids, but also many bases and solvents, even at elevated temperatures (see the chart below). EP62-1HT is a dependable electrically 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. A non-drip version is also available, called EP62-1HTND. It is well suited for many rigorous applications in aerospace, electronic and specialty OEM, among other industries, especially where high temperature resistance and the ability to withstand hostile chemicals is needed.