Economical, versatile polyvinyl chloride (PVC, or vinyl) is used in a variety of applications in the building and construction, health care, electronics, automobile and other sectors, in products ranging from piping and siding, blood bags and tubing, to wire and cable insulation, windshield system components and more.

According to the formulation, put the PVC resin, plasticizer, CaCO3, stabilizer and other auxiliaries into hot mixer mixing. After 6-10 mins discharge into the cold mixer (6-10 mins) for premixing. PVC compounding must use the cold mixer to prevent material stick together after the hot mixer.

The essential additives for all PVC materials are stabilisers and lubricants; in the case of flexible PVC, plasticisers are also incorporated. Other additives which may be used include fillers, processing aids, impact modifiers and pigments.

Toughness – Both PVC-O and PVC-M behave in a consistently ductile manner under all practical circumstances. Under some adverse conditions, in the presence of a notch or flaw, standard PVC-U can exhibit brittle characteristics.

PVC contains dangerous chemical additives including phthalates, lead, cadmium, and/or organotins, which can be toxic to your child’s health. These toxic additives can leach out or evaporate into the air over time, posing unnecessary dangers to children.

Some common products often made with PVC include:

• Rigid pipes.
• Wire insulation.
• Residential flooring.
• Commercial flooring.
• Building siding.

Clean Your PVC Before Use Dirt and germs on its surface could harm the habitat in your fish tank. Also, any stray PVC fragments that fall off the pipe could hurt your fish. Take caution when introducing anything into your fish tank! Any paints or glues you put on pipe should also be safe and waterproof.

Although PVC is flame resistant, PVC products release toxic hydrogen chloride gas when heated. These corrosive gases can spread faster than flames, trapping building occupants before they have a chance to escape. Hydrogen chloride gas is lethal when inhaled.

Substitutes for PVC include traditional materials such as clay, glass, ceramics and linoleum. In those cases where traditional materials cannot be used as a replacement, even chlorine-free plastics are preferable to PVC.

The temperature range for bending PVC is between 170 degrees and 220 degrees, with 170 being perfect for long, sweeping arcs and 220 allowing you to make tight curves.

On a practical level, heating PVC pipe can cause distortion. With a melting point of about 176 degrees Fahrenheit, PVC pipes may bend as the material approaches this temperature. Active PVC pipes should never be heated beyond 158 degrees.

PVC pipes are in danger of freezing when surrounding temperatures approach 20 degrees Fahrenheit. Ice begins to form and gradually blocks the pipe. This blockage causes a rise in water pressure. Eventually the pipe ruptures and sends water everywhere.

PVC pipe is extremely rigid, but this technique allows you to bend PVC pipe at angles up to 90 degrees without kinking. Use a hair dryer to heat up a spot on the PVC pipe and slowly apply pressure on the area you want to bend. Once you’ve made a bend to the desired angle you can remove the auger.

With a melting point of about 176 degrees Fahrenheit, PVC pipes may bend as the material approaches this temperature.