EP21AR is a two-component epoxy that can
withstand harsh, acidic environments, including prolonged immersion in 96-98
percent sulfuric acid and 36 percent hydrochloric acid for over a year. With a
dielectric strength of 400V/mil, EP21AR is a durable and stable epoxy that is
also an electrical insulator. Its coefficient of thermal expansion is 45-55
ppm/C, and it is serviceable from -60 to +275F. It produces high strength,
abrasion resistant bonds with a tensile strength over 10,000 psi, a shear
strength exceeding 2,700 psi and a compressive strength greater than 14,000 psi
easy to use with a forgiving 2 to 1 mix ratio by weight, and a mixed viscosity
of 10,000-15,000 cps. It is 100 percent reactive with no solvents or diluents
and can be applied smoothly in any thickness. This epoxy has a working life of
45 to 55 mins at ambient temperature for a 200 g batch, and cures at room
temperature or faster at elevated temperatures. It bonds well to a wide variety
of substrates, including metals, glass, ceramics, cements, vulcanized rubbers,
wood and many plastics.
packaged in pint, quart, gallon and 5 gallon container kits. It is used in oil
and chemical processing, maintenance and repair, optics, metalworking,
appliance and electrical/electronic industries.
Conventional wisdom holds that MIT, Cal Tech, and Stanford are three of the country’s best undergraduate engineering schools. Unfortunately, when conventional wisdom visits the topic of best engineering schools, it too often leaves out some of the most distinguished programs that don’t happen to offer PhD-level degrees.
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Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.