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.
Earlier this year paralyzed IndyCar drive Sam Schmidt did the seemingly impossible -- opening the qualifying rounds at Indy by driving a modified Corvette C7 Stingray around the Indianapolis Motor Speedway.
Wearables are changing the way we see ourselves. With onboard sensors that have access to our bodies, we are starting to know our physical selves like never before, quantifying our activity, our heart rate, breathing, and even our muscle effort.
Last week, the bill for reforming chemical regulation, the TSCA Modernization Act of 2015, passed the House. If it or a similar bill becomes law, the effects on cost and availability of adhesives and plastics incorporating these substances are not yet clear.
This year, Design News is getting a head start on the Fourth of July celebration. In honor of our country and its legacy of engineering innovation -- in all of its forms -- we are taking you on an alphabetical tour through all 50 states to showcase interesting engineering breakthroughs and historically significant events.
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.