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PVC is one of the most widely used engineering plastics. It generally comes in two forms: plasticized and unplasticized PVC. Unplasticized PVC is used in rigid parts like pipes and fittings. CNC machining in PVC is generally done with this rigid version of the material. Plasticized PVC is used in applications that require flexibility like cables or small tubes. The production of PVC uses fewer nonrenewable raw materials by volume than most other plastics, making it one of the greenest plastics available. CNC machining in PVC is similar to that of other engineering plastics, and thanks to its rigidity and hardness, it machines relatively easily.
PVC material, or polyvinyl chloride, is an engineering plastic with excellent ultraviolet (UV) resistance, insulating properties, and resistance to moisture ingress. It is a popular choice for piping and construction materials, as well as for the electrical, energy, and medical industries. You can select PVC as a material for CNC machining in the FlagShip Instant Quoting Engine℠.
CNC PlasticsMachining PVC results in low-cost parts that have excellent mechanical properties and come with the added benefit of being resistant to the elements. The material’s moisture and UV resistance make it attractive for applications like piping and pipe fittings.
Rigid / Unplasticized PVC Properties
| Tensile Strength, Yield (MPa) | Elongation at Break (%) | Hardness (Rockwell M) | Heat Deflection Temperature (°C) at 0.46 MPa | Melting Point (°C) |
|---|---|---|---|---|
| 45.6 | 110 | 81 | 182-210 | 142-152 |
Unlike most other engineering plastics, PVC can be readily painted both for aesthetic purposes as well as to further increase its outdoor lifespan. It must also be noted that though its mechanical properties remain consistent, transparent PVC tends to discolor over time when exposed to the sun or other UV sources.
