Polyamide 12 (PA12) transparent nylon is a versatile engineering material widely used in industries such as automotive, electronics, and consumer goods. It is known for its balance of mechanical strength, transparency, chemical resistance, and thermal stability. In this article, we will explore the main specifications and properties of PA12 transparent nylon, focusing on the data from Shengwen’s PA12 materials such as SAM639, TN-90, and SAM680eCo.
The mechanical strength of PA12 transparent nylon makes it suitable for demanding applications. According to ISO 527-2 tests, the tensile modulus ranges from 1500 to 1600 MPa, providing a good balance between rigidity and flexibility. Its tensile stress at yield is between 65 and 70 MPa, which ensures structural integrity under load.
In bending applications, PA12 demonstrates excellent stiffness. The bending modulus ranges from 1600 to 1750 MPa, while the ball pressure hardness is measured between 120 and 125 MPa under ISO 2039-1 standards. These values indicate reliable strength, allowing PA12 components to withstand mechanical stress in practical applications.
Temperature resistance is another key feature of transparent PA12. The thermal deformation temperature is recorded between 125°C and 135°C (ISO 75-2/B). This means PA12 can retain its shape and performance under high thermal loads, making it suitable for automotive and electrical applications where heat resistance is critical.
In addition, the glass transition temperature is between 128°C and 140°C, ensuring the material remains stable under varying thermal conditions. Combined with a high service temperature of up to 155°C, PA12 transparent nylon provides durability in demanding environments.
Hardness is an important factor when choosing materials for precision parts. PA12 transparent nylon has a Shore D hardness of 82–83 (ISO 868), which offers good surface strength while maintaining some flexibility.
With a density of around 1.02–1.03 g/cm³, PA12 provides lightweight solutions compared to metals and other engineering plastics. This lower density results in higher material yield and contributes to weight reduction in automotive and industrial parts.
PA12 transparent nylon is also valued for its electrical insulation properties. Tested under IEC 60093, the surface resistivity is 1.0E+14 ohms, which classifies it as an excellent insulator. This property is especially important for electronic housings, connectors, and insulating components where electrical safety is required.
One of the unique advantages of Shengwen’s PA12 transparent nylon is its high transparency of 92%. This feature makes it ideal for applications where clarity, visibility, or aesthetic appearance is important. Transparent PA12 can be used in fluid monitoring systems, optical components, or consumer products that require both strength and a clear visual look.
Durability is further enhanced by PA12’s superior impact resistance. The material maintains toughness even under dynamic loading, which is important for parts exposed to sudden forces.
Additionally, PA12 offers good chemical resistance, particularly against fuels, oils, and solvents. This makes it an excellent choice for automotive fuel line systems, hydraulic components, and chemical containers, where resistance to aggressive media is critical.
Sustainability is becoming increasingly important in material selection. Shengwen’s Rodney® SAM680eCo is a bio-based PA12, offering the same high performance as conventional grades while reducing environmental impact. This aligns with the global trend of developing eco-friendly materials without compromising quality.
According to UL 94 standards, PA12 transparent nylon achieves an HB flame-retardant rating. While not as flame-resistant as specialized engineering plastics, this rating ensures a basic level of safety in standard applications. When combined with its excellent thermal and mechanical stability, PA12 provides balanced performance for various industries.
PA12 transparent nylon stands out as a high-performance engineering plastic with a unique combination of mechanical strength, transparency, thermal resistance, and chemical durability. Its lightweight density, excellent insulation, and bio-based options make it a versatile choice for automotive, electronics, and industrial applications.
Shengwen’s PA12 series—including SAM639, TN-90, and SAM680eCo—offers manufacturers reliable solutions tailored to modern performance and sustainability needs. By combining advanced material properties with practical usability, PA12 transparent nylon continues to be a preferred material in demanding engineering applications.
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