Rigid Vinyl (RPVC)
Rigid polyvinyl chloride (RPVC) boasts superior rigidity.
As the name suggests, rigid polyvinyl chloride (RPVC) boasts superior rigidity. Priced moderately and manufactured by using raw materials like rock salt and natural gas, rigid vinyl offers excellent resistance to weathering and water, although RPVC should be heat-stabilized to deal with high temperatures. The material can also be UV stabilized through the use of additives, which offers increased resistance to sunlight. By definition, rigid vinyl has not been modified through the use of plasticizers, which are sometimes applied to make the vinyl softer and more flexible. Such plasticizers and other ingredients can soften the vinyl material but have recently been linked to potential health issues. Rigid vinyl is susceptible to strong solvents, including esters and hydrocarbons. Furthermore, unless it is ordered according to FDA-approved grades, tubing made from rigid vinyl is not safe for drinking water. This is because PVC can contain chemical additives like lead, cadmium, and phthalates. Plumbing pipes are perhaps the most recognizable application of RPVC material, leading to rigid vinyl’s popularity in the construction and plumbing industries. RPVC’s water resistance makes it suitable for uses in windows, doorways, wire coverings and wastewater pipes. Rigid PVC can also be used to create plastic film and can take be matte, opaque, or glossy.
Rigid vinyl’s combination of rigidity, all-around utility, and affordability makes it a good choice for tubes or profiles. It is available in clear or colored varieties and can be ordered in either FDA or outdoor grades.