PA12 Nylon: Low-Moisture Polyamide for Automotive Tubing
Published: 2026-06-02
PA12 has lowest moisture absorption of any polyamide (0.25% vs 2.5-3.0% for PA66). Material of choice for fuel lines, air brake tubing, pneumatic hose. Excellent hydrocarbon resistance. Process at 190-240°C.
PA12 has lowest moisture absorption of any polyamide (0.25% vs 2.5-3.0% for PA66). Material of choice for fuel lines, air brake tubing, pneumatic hose. Excellent hydrocarbon resistance. Process at 190-240°C.
Technical Properties
| Density | 1.01 g/cm³ |
|---|---|
| Tensile Strength | 50 MPa |
| Melting Point | 178 °C |
| Shrinkage Rate | 0.5-1.0% |
| Flexural Modulus | 1.4 GPa |
| Hdt | 55 °C at 1.82 MPa |
Engineering Tool: Shrinkage & Cost Estimator
Calculate part weight, mold cavity dimensions accounting for shrinkage, and material cost — all locally in your browser.
Equivalents & Cross-References
| Equivalent / Alternate | Action |
|---|---|
| Vestamid L | |
| Rilsan PA12 |
Frequently Asked Questions
PA12 vs PA11?
PA11 is bio-based (castor oil); PA12 is petroleum-based. PA11 slightly better chemical resistance; PA12 slightly lower density. Cost and availability typically drive the choice.
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References & Industry Standards
- ASTM International. Standard Specifications for Engineering Plastics & Thermoplastics. astm.org
- UL Prospector. Plastics & Elastomers Material Database. ulprospector.com
- MatWeb. Material Property Data for Engineering Thermoplastics. matweb.com
- ISO 1043. Plastics — Symbols and Abbreviated Terms. iso.org