What Makes PA12 Nylon Tubing Ideal for Pneumatic Applications?

In modern pneumatic systems, choosing the right tubing material is crucial for achieving long-lasting, efficient, and safe performance. While many options exist—such as polyurethane, polyethylene, and PA6—PA12 nylon tubing is widely regarded as a premium solution, especially for applications demanding flexibility, low moisture absorption, and superior chemical resistance.

So, what sets PA12 apart from other tubing materials? Let’s explore its features, advantages, and where it fits best.

What Is PA12 Nylon?

PA12, short for Polyamide 12, is a high-performance thermoplastic from the nylon family. Unlike PA6 or PA66, PA12 features a longer carbon backbone, giving it enhanced flexibility and moisture resistance.

It is manufactured via polymerization of laurolactam and is commonly used in pneumatic systems, hydraulic return lines, fuel lines, and chemical transport tubing. Its balance between mechanical strength and softness makes it a preferred choice in sensitive or mobile pneumatic applications.

✅ Key Benefits of PA12 Pneumatic Tubing

1. Exceptional Flexibility

PA12 tubing offers superior bendability even in cold environments, making it perfect for dynamic or tight-space installations where repeated motion is expected.

2. Low Moisture Absorption

Compared to PA6, PA12 absorbs far less moisture (typically <0.5%). This results in better dimensional stability and consistent performance, even in humid or wet environments.

3. High Chemical Resistance

PA12 resists a wide range of fluids, including hydrocarbons, fuels, hydraulic oils, and cleaning agents, making it ideal for use in automotive and chemical industries.

4. Excellent Temperature Tolerance

Operating range is typically from -40°C to +100°C, and short-term peaks up to +120°C are manageable.

5. Lightweight and Durable

Despite its strength, PA12 is lighter than many other nylon types, making it easier to install and reducing load on connected fittings and components.

Common Applications of PA12 Tubing

Pneumatic control systems

Automotive fuel and brake lines

Chemical fluid transfer

Robotics and automation

Medical and analytical equipment

Offshore and marine systems

Its flexibility and long service life make it particularly suitable for complex pneumatic layouts and movable machinery.

⚖ PA12 vs PA6 – What’s the Difference?

If your application involves dynamic movement, humid environments, or chemical exposure, PA12 is likely the better choice. For fixed installations with high pressure and cost sensitivity, PA6 could be more appropriate.

Aisili PA12 Tubing – Specifications

At Aisili Pneumatic, we manufacture and supply precision-extruded PA12 tubing tailored to your industrial needs:

Sizes: 4mm to 16mm OD (custom sizes available)

Colors: Blue, black, red, yellow, natural, or customized

Packaging: Coils, bundles, or cut-to-length

Surface finish: Smooth and uniform, anti-kink design

Compatibility: Push-to-connect fittings, barbed fittings, quick couplers

 Why Choose Aisili for Your PA12 Tubing Needs?

✅ Manufactured using 100% virgin PA12 resin

✅ RoHS & REACH compliant, with material traceability

✅ Excellent surface quality and pressure performance

✅ Available in OEM/custom lengths and branding

✅ Fast production and global export support