PA12 (Polyamide 12), commonly known as Nylon 12, is distinguished by its exceptionally low moisture absorption. While PA6 absorbs up to 9% and PA66 absorbs 8-9% moisture at saturation, PA12 absorbs only 0.9% maximum—making it the premier choice for applications requiring dimensional stability in humid, wet, or underwater environments.
Key Properties of PA12
PA12’s moisture absorption is only 0.9% maximum (10x lower than PA6/PA66), with melting point of 178-180°C and continuous service temperature up to 130°C short-term. Impact strength reaches 30-40 kJ/m² retaining toughness at -40°C. Chemical resistance is excellent against fuels, oils, and brake fluids. Our PA12-CF30 provides enhanced mechanical properties.
Applications
PA12 is used in automotive fuel systems (SAE J844, ISO 13775 compliant), marine hardware and underwater cables, pneumatic systems, medical devices, and cryogenic applications.
Source PA12 Materials
As a specialized source manufacturer, we supply PA12 in rod, sheet, and tube forms for CNC machining as well as filament for 3D printing. Contact us for PA12 samples and pricing.
FAQ
How do you know whether Nylon 12 (PA12) — The Most Moisture-Resistant Engineering Nylon fits a part?
Nylon 12 (PA12) — The Most Moisture-Resistant Engineering Nylon fits a part when its load capacity, temperature range, moisture exposure, wear behavior, and processing method match the real service conditions.
What properties should be checked for Nylon 12 (PA12) — The Most Moisture-Resistant Engineering Nylon?
Check strength, stiffness, impact resistance, heat resistance, moisture absorption, dimensional stability, friction, wear, and chemical compatibility.
What is the biggest selection risk for Nylon 12 (PA12) — The Most Moisture-Resistant Engineering Nylon?
The biggest risk is choosing from a datasheet value without considering actual environment, processing method, part geometry, and long-term use.
When should Nylon 12 (PA12) — The Most Moisture-Resistant Engineering Nylon be tested before production?
Testing is recommended when the part faces load, heat, chemicals, moisture, tight tolerances, regulatory requirements, or a new operating environment.
PA12 Nylon — Frequently Asked Questions
Why is PA12 more moisture resistant than PA6 or PA66?
PA12 has a semi-crystalline structure with lower amide group density. Maximum moisture absorption is only 0.9% vs 6-9% for PA6 and PA66. At 50% relative humidity, PA12 absorbs just 0.4% moisture. This makes PA12 ideal for underwater, marine, and humid environment applications.
What are the key applications for PA12?
PA12 excels in automotive fuel systems (SAE J844 compliant), marine hardware and underwater cable jackets, pneumatic and hydraulic tubing, medical devices (ISO 10993 compliant), and cryogenic applications down to -60C.
Where can I source PA12 materials for CNC machining?
Nylonplastic is a specialized manufacturer established in 2005 with ISO9001/14001/45001/IATF16949 certifications. We supply PA12 in rod, sheet, and tube forms for CNC machining with tolerances to 0.02mm. Contact us for free samples.
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