描述
Zytel 70G35EF BK538 PA66 is a 35% glass fiber reinforced polyamide 66 resin developed for electrical and electronic applications. It combines the mechanical strength and heat resistance of PA66 with a high glass fiber reinforcement level, providing excellent stiffness, dimensional stability and structural performance for demanding molded parts.
The EF formulation is positioned for electrical and electronic components. Public technical information identifies this grade as heat stabilized and suitable for injection molding, with mold-release performance as well as laser marking and laser welding capability.
Compared with unreinforced PA66, Zytel 70G35EF BK538 offers substantially higher rigidity, lower molding shrinkage and improved dimensional control. Its black BK538 formulation is suitable for connectors, housings, sensor components, electrical assemblies and traceable molded parts requiring permanent laser identification.
Shenzhen Ruiqing International Trade Co., Ltd. supplies original Zytel 70G35EF BK538 PA66 resin with quotation support, TDS, SDS and global delivery service.
Key Features
- 35% glass fiber reinforced PA66
- Developed for electrical and electronic applications
- Heat stabilized formulation
- Black BK538 color
- High stiffness and mechanical strength
- Excellent dimensional stability
- Good mold-release performance
- Laser markable
- Laser weldable
- Suitable for injection molding
Typical Applications
- Electrical connectors
- Electronic housings
- Automotive electrical components
- Sensor housings
- Switch components
- Industrial electrical equipment
- Laser-marked identification parts
- Laser-welded plastic assemblies
- Precision reinforced components
Advantages
Zytel 70G35EF BK538 PA66 is suitable for applications requiring a combination of high structural strength, dimensional accuracy and electrical-sector processing features.
The 35% glass fiber reinforcement provides greater stiffness than lower glass-filled PA66 grades, while the heat-stabilized formulation supports reliable performance at elevated temperatures. Laser marking allows permanent part identification, and laser welding capability supports clean, precise assembly of electrical and electronic components.
Related Products
Typical Properties
| Property | Typical Value |
|---|---|
| Material | PA66-GF35 |
| Grade | 70G35EF BK538 |
| Color | Black |
| Glass Fiber Content | 35% |
| Density | 1.40 g/cm³ |
| Notched Izod Impact, 23°C | 10 kJ/m² |
| Heat Stabilized | Yes |
| Laser Markable | Yes |
| Laser Weldable | Yes |
| Mold Release | Yes |
| Processing Method | Injection Molding |
The exact-grade injection datasheet identifies the material as PA66-GF35 with a density of 1.40 g/cm³, while public product information also lists heat stabilization, laser marking, laser welding and mold-release features.
Processing Recommendations
Zytel 70G35EF BK538 PA66 should be dried before injection molding. The grade-specific processing datasheet recommends drying at 80°C for 2–4 hours, with optimum processing moisture around 0.1% and a maximum of 0.2%.
Recommended melt temperature is 285–305°C, with an optimum of approximately 295°C. The recommended mold temperature range is 70–120°C, with an optimum near 100°C. Typical residence time is 3–5 minutes, while holding pressure is generally 50–100 MPa.
For official Zytel PA product information, please refer to the Celanese Zytel PA official product page .
For grade-specific processing information, please refer to the Zytel 70G35EF BK538 injection datasheet .
FAQ
What is Zytel 70G35EF BK538 PA66?
It is a 35% glass fiber reinforced black PA66 resin developed for electrical and electronic injection molding applications.
What does PA66-GF35 mean?
PA66-GF35 means polyamide 66 reinforced with approximately 35% glass fiber, providing higher stiffness, strength and dimensional stability than unreinforced PA66.
Is Zytel 70G35EF BK538 laser markable?
Yes. Public grade information identifies it as a laser-markable material suitable for permanent component identification and traceability.
Can this grade be used for laser welding?
Yes. Zytel 70G35EF BK538 is also listed as laser weldable, making it suitable for compatible laser-welded electrical and electronic assemblies.
What is the difference between BK538 and NC010?
BK538 is the black formulation, while NC010 is the natural color version typically selected for custom coloring.
Can original Zytel 70G35EF BK538 PA66 be supplied?
Yes. Shenzhen Ruiqing International Trade Co., Ltd. can supply original Zytel materials with quotation, TDS, SDS and delivery support.
