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
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 >
Chinese drywall refers to drywall imported from China from the years 2001 to 2007 that contained extraneous minerals and metals, such as iron, strontium and sulfur. Under humid and warm climate conditions, the drywall emits sulfur gases.Full Answer >
Self-locking nuts use either a pre-installed plastic insert or a chemical substance applied to the threads that, when initially tightened down, spreads in between the threads to create a more stable adhesive bond than the metal-to-metal connection of an ordinary nut and bolt. Locking nuts keep a threaded nut and bolt assembly from coming loose due to vibration and loss of torque required to maintain structural integrity.Full Answer >
To affix ceramic tiles to a tabletop, use a trowel to apply commercially available mortar or tile adhesive to the tile backs, then press firmly onto the surface of the table. Maintain a 1/4-inch space between each tile for grouting material. When tiling the table, DoItYourself recommends beginning in the center and working outward.Full Answer >