If you specify Polyvinyl Chloride (PVC) plastic extrusion profiles, a handful of properties decide whether the part survives in service. These are the values worth checking on every data sheet.
Everything here can be checked on a real sample before you commit to a production order.
This category covers a family of products rather than a single item. In practice a buyer defines plastic extrusion profiles by three things: the base resin, the format or dimension, and the performance or certification level it has to meet. Typical options in this category include custom cross section up to 300 mm; rigid, semi-rigid and flexible compounds; co-extruded soft and hard zones. Materials most often specified are Polypropylene, Polycarbonate, Polyvinyl Chloride, High Density Polyethylene, and the choice between them changes stiffness, temperature resistance, chemical behaviour and price.
In the industrial packaging sector the decision is usually driven by drop protection and cost per pack, with recyclability as a secondary requirement. Typical end uses include bulk containers, strapping, protective foam.
The table below summarises the values that usually decide the material choice.
| Material | Density | Tensile strength | Service temperature |
|---|---|---|---|
| High Density Polyethylene | 0.94-0.97 g/cm³ | 20-32 MPa | -50°C to 80°C |
| Polypropylene | 0.90-0.91 g/cm³ | 25-40 MPa | -10°C to 100°C |
| Polyvinyl Chloride | 1.38-1.45 g/cm³ | 40-55 MPa | -10°C to 60°C |
Polyvinyl Chloride is frequently the default selection here: PVC can be formulated from rigid pipe compound to soft medical grade by changing plasticiser content.
Typical values for a general purpose grade are listed below; filled, stabilised and speciality compounds will differ.
Density 1.38-1.45 g/cm³, tensile strength 40-55 MPa, continuous service temperature -10°C to 60°C and melt range 100-260°C (decomposition range) are the four values to circle on the data sheet. Everything else is secondary for most industrial packaging projects.
Beyond the base resin, most suppliers offer UV stabilised, food contact, flame retardant, anti-static and recycled content versions of the same product. Ask which additive package is included, because it is often the difference between a part that lasts three years and one that lasts ten.
Processing method drives both cost and performance, so it should be fixed early in the design.
Secondary operations such as printing, welding, machining and assembly are often cheaper to do in the same factory, and they reduce the risk of mismatch between components.
These are the criteria that actually predict whether the part will perform in service.
Send this list to your supplier with the drawing and you will receive comparable quotations from every factory you contact.
We can provide ISO 9001 quality system documentation, material certificates, RoHS and REACH statements, and where applicable food contact, flame retardancy or drinking water approvals. Tell us your target market and we will match the document set.
Yes. Standard samples are normally free of charge and shipped within three working days; custom samples are charged at cost and credited against the first production order.
For standard sizes and colours the minimum is usually one pallet or one production run; for custom tooling the economic minimum depends on the tooling cost amortised over the expected volume. Send us your annual volume and we will calculate the break even point.
Standard production tolerance follows the relevant ISO or DIN tolerance class for the process; tighter tolerances are possible after machining or grinding, but they add cost. Define the tolerance only on the functional dimensions.
A new tool typically takes 25 to 45 days depending on cavity count and complexity, followed by T1 samples within one week. Existing tools can usually start production within 10 to 15 days of order confirmation.
Our team supplies plastic extrusion profiles to industrial packaging customers worldwide, with samples, material certificates and full inspection reports available before mass production.
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