Two Part, Low Viscosity Epoxy Offers Long Working Life and High Elongation

Master Bond EP29LPHE is a two component epoxy system with a low mixed viscosity of 350-700 cps. This low shrinkage/low exotherm product is particularly well suited for large volume casting applications as well as bonding, coating and sealing. “What sets EP29LPHE apart from other epoxies is that while it cures relatively rigid, it has excellent toughness, provides a low moduls and high elongation, which allows it to withstand shock and impact,” said Rohit Ramnath, senior product engineer. This compound features a Shore D hardness of 50-60 and a tensile elongation of 100-150% at room temperature.

As a two part system, EP29LPHE has a forgiving 100 to 80 mix ratio by weight and has an exceptionally long working life of 12-24 hours at room temperature for a 100 gram batch. It will cure at room temperature or more rapidly at elevated temperatures. This system bonds well to a wide variety of substrates including metals, ceramics, glass, composites, rubbers and plastics, including fiber reinforced plastics and optical fibers.

EP29LPHE has superb optical clarity and light transmission properties. It resists exposure to chemicals including water, acids, bases, oils and fuels. Most notable is that it is a dependable electrical insulator with a volume resistivity of >10¹⁵ ohm-cm. Its temperature resistance is from -60°F to +250°F [-51°C to +121°C]. EP29LPHE is available for use in ½ pint, pint, quart, gallon and 5 gallon container kits.

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