For bears, height is usually measured at the shoulder when the animal is on all fours, according to Polar Bear International. On average, polar bears on all fours are 3.5 to 5 feet (1 to 1.5 meters) tall, but when standing on its hind legs, an adult male polar bear may reach more than 10 feet (3 m). Lengthwise, they are 7.25 to 8 feet (2.2 to 2.5 m) from head to rump. Their tail adds another 3 to 5 inches (7.5 to 12.5 centimeters). An adult male polar bear weighs around 775 to 1,200 lbs. (351 to 544 kilograms). The largest polar bear recorded weighed 2,209 pounds (1,000 kg), according to Polar Bear International.
Urethane Adhesives. Single component moisture curing adhesives cure on exposure to moisture either in the substrate or atmosphere. A small quantity of carbon dioxide is released during cure that, usually, has no effect on the bonding process.
When sealing with an epoxy, thorough moisture testing is a must. Epoxy sealers are popular for stained countertops. Urethane Sealers: This sealer type is the most expensive, but also the most abrasive-resistant. To get a proper bond, urethanes must be applied over a water-based epoxy.You also should be aware that they are not UV stable. View this comparison chart of concrete sealers.Get information about how they work, primary applications, type of finish, and performance about each type.o get a proper bond, urethanes must be applied over a water-based epoxy. You also should be aware that they are not UV stable. View this comparison chart of concrete sealers. Get information about how they work, primary applications, type of finish, and performance about each type.