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Polypropylene Rod

Polypropylene Rod

4.8 · Perspex Online store rating (45 reviews)

Polypropylene rod is a lightweight, tough plastic with excellent chemical resistance and low moisture absorption. It offers good impact strength and fatigue resistance, making it suitable for…

$11.24 + GST
inc. GST $12.36
28 rod sizes in stock

Per-piece pricing for off-the-shelf lengths. Need a custom cut or a shorter length? Email us a quote.

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Why choose Polypropylene Rod?

Benefits of Polypropylene Rod

Applications

Diameters Available

  • Chemical Resistance: Highly resistant to a wide range of chemicals, including acids, alkalis, and solvents.
  • Lightweight & Durable: Offers a great strength-to-weight ratio, making it easy to handle and install.
  • Low Moisture Absorption: Maintains its properties even in wet or humid conditions.
  • Machinability: Easy to cut, drill, and fabricate to meet specific requirements.
  • Cost-Effective: Provides excellent performance at a competitive price point.
  • Chemical Processing: Ideal for tanks, liners, and components exposed to corrosive substances.
  • Food & Beverage Industry: Suitable for conveyor components, cutting boards, and food-safe machinery parts.
  • Water Treatment: Used in pump components, valves, and fittings due to its resistance to water and chemicals.
  • General Fabrication: Perfect for custom parts, spacers, and insulators in industrial settings.

Polypropylene Rod is a versatile and durable thermoplastic known for its excellent chemical resistance, low moisture absorption, and high fatigue resistance. It is lightweight, easy to machine, and offers good impact strength, making it a popular choice for a wide range of industrial and commercial applications. Polypropylene is also resistant to most acids, alkalis, and solvents, ensuring long-lasting performance in demanding environments.

10mm – 250mm (custom diameters available upon request)

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Cut to size, precision finished and dispatched Australia-wide. Not sure which material suits your job? We'll help you choose the right one.

Technical Specifications
Material Type Polypropylene (PP)
Polymer Family Polyolefin
Colour Natural (Translucent), Grey
Density ~0.90 g/cm³
Tensile Strength ~30–38 MPa
Flexural Strength ~40–50 MPa
Elastic Modulus ~1.3–1.7 GPa
Working Temperature Range 0°C to +100°C
Max Short-Term Temperature ~120°C
Water Absorption (24 hrs) <0.01%
Electrical Insulation Excellent
UV Resistance Poor (unless UV-stabilised)
Chemical Resistance Excellent (acids, alkalis, salts)

Frequently Asked Questions

What is polypropylene (PP) rod used for?

Polypropylene rod is used to machine or fabricate components requiring chemical resistance, low moisture absorption, and fatigue resistance. Common applications include chemical processing parts, tanks and fittings, valve components, spacers, rollers, laboratory equipment, and water treatment components.

What are the key properties of polypropylene rod?

PP rod offers excellent chemical resistance, very low moisture absorption, good fatigue resistance, and low density. It is tough and flexible but has lower stiffness and temperature resistance compared to engineering plastics like nylon or acetal.

Can polypropylene rod be machined or welded?

Yes. Polypropylene rod can be machined using lathes and CNC equipment, though its flexibility requires proper support. It is also highly weldable using hot air or extrusion welding, making it suitable for fabricated assemblies.

How does polypropylene rod compare to PVC or nylon rod?

Polypropylene has better chemical resistance and weldability than PVC but is softer and less rigid. Compared to nylon, PP has lower strength and wear resistance but far better chemical resistance and moisture stability.

What applications is polypropylene rod best suited for?
PP rod is best suited for low-load, corrosion-resistant applications such as chemical handling components, tank fittings, spacers, rollers, and parts exposed to acids, alkalis, or moisture rather than high-wear or high-temperature environments.

Need this custom cut or fabricated?

Send us your drawing (DXF, DWG, PDF, EPS, STEP) and we'll quote your Polypropylene Rod to spec.

Max 5 files, 10MB each