Polyether Ether Ketone (PEEK) and Polyvinyl Chloride (PVC) are the two most quoted options for medical plastic components in marine and offshore projects. Both are widely available, but they behave very differently once they are in service.
This guide is written for engineers, purchasers and project managers who need a practical answer, not a resin data sheet.
This category covers a family of products rather than a single item. In practice a buyer defines medical plastic components 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 cleanroom packed; tubing ID 0.5 mm to 25 mm; gamma, ETO and steam sterilisation grades. Materials most often specified are Thermoplastic Elastomer, Polyether Ether Ketone, Polyurethane, Polypropylene, and the choice between them changes stiffness, temperature resistance, chemical behaviour and price.
In the marine and offshore sector the decision is usually driven by UV and salt resistance and impact strength, with buoyancy as a secondary requirement. Typical end uses include dock fenders, rope and netting, buoyancy floats.
Typical values for a general purpose grade are listed below; filled, stabilised and speciality compounds will differ.
| Material | Density | Tensile strength | Service temperature |
|---|---|---|---|
| Polyvinyl Chloride | 1.38-1.45 g/cm³ | 40-55 MPa | -10°C to 60°C |
| Polycarbonate | 1.20 g/cm³ | 55-70 MPa | -40°C to 120°C |
| Polyether Ether Ketone | 1.32 g/cm³ | 90-100 MPa | -50°C to 250°C |
Polyether Ether Ketone is frequently the default selection here: PEEK replaces metal in the hottest and most chemically aggressive service conditions.
Polyether Ether Ketone grades offer retains strength at 250°C, while Polyvinyl Chloride brings inherently flame retardant. For marine and offshore service the difference shows up in creep and in the long term behaviour under load.
In short: choose the first option when stiffness, heat and dimensional stability dominate; choose the second when impact, cost and processing speed matter more.
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.
Each step below has its own control points, and skipping one of them is where most defects start.
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.
Standard packing is export cartons on fumigation-free pallets, with custom labelling, barcode and retail packing available. We also handle consolidated containers and door to door delivery.
Colour is controlled with a masterbatch reference approved by the customer, and every production lot is checked against the approved sample under standard lighting before shipment.
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.
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.
Yes. {mat1} is one of our regular materials for this item, and we can supply virgin, modified and certified grades with full traceability. Material certificates and test reports are issued per batch.
Our team supplies medical plastic components to marine and offshore customers worldwide, with samples, material certificates and full inspection reports available before mass production.
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