PEVA is a biodegradable, non-chlorinated vinyl which is commonly used in shower curtains, plastic wrap for food and sports padding. It is also called polyethylene vinyl acetate, or ethylene vinyl acetate.
PEVA is a safe alternative to using PVC shower curtains that can give off many volatile organic compounds which can be toxic, for the first month after removing it from its packaging. PEVA can also be used as a drug delivery device, when it is mixed with a drug and implanted, in order to slowly release the drug compound into the body in time. Top-of-the-line soccer cleats, boxing gloves, ski boots and bicycle saddles are also common uses of PEVA, too.Learn More
Bricks vary in weight depending on their material, manufacturing process and size. At Nash Brick, a solid modular brick that is 7 5/8 inches long, 3 1/2 inches wide and 2 1/4 inches high weighs 4.3 pounds. A Watsontown brick with identical dimensions weighs 4.9 pounds.Full Answer >
A footing for a poured concrete retaining wall is constructed by digging out a flat area on the ground, adding concrete forms to contain the material, placing rebar at appropriate places and finally mixing concrete before pouring into the form. A concrete footing is poured on either side of the bottom of a retaining wall to give stability to the structure.Full Answer >
Some bacteria manufacture and absorb their own food, while others must consume substances like living organisms or decaying material through their cell walls. Bacteria break down food in a process called respiration, which for some strains of bacteria requires oxygen to complete.Full Answer >
One single roll of wallpaper yields approximately 25 square feet of usable paper, regardless of its width. Wallpaper is priced by the roll but is often sold in bundles of two or three rolls.Full Answer >