描述
Zytel 70G33L BK031 PA66 is a 33% glass fiber reinforced polyamide 66 resin designed for injection molding applications. It contains lubricants and a release agent to support stable processing and efficient demolding while maintaining the high mechanical performance expected from reinforced nylon 66.
The 33% glass fiber reinforcement provides substantially higher stiffness, strength and dimensional stability than unreinforced PA66. This grade also offers a good balance of stiffness and toughness, good melt stability, abrasion resistance, chemical resistance and electrical performance.
The BK031 designation identifies the black color version. Zytel 70G33L BK031 PA66 is suitable for automotive components, electrical connectors, industrial machinery, household appliances, power tools, construction products and other reinforced engineering parts requiring dependable structural performance.
Shenzhen Ruiqing International Trade Co., Ltd. supplies original Zytel 70G33L BK031 PA66 resin with quotation support, technical documents and global delivery service.
Key Features
- 33% glass fiber reinforced PA66
- Lubricated formulation with release agent
- Black resin pellet form
- High mechanical strength
- Excellent stiffness and toughness balance
- Good dimensional stability
- Good melt stability
- Good abrasion resistance
- Good chemical resistance
- Suitable for injection molding
Typical Applications
- Automotive structural components
- Electrical connectors
- Industrial machinery parts
- Appliance components
- Power tool housings
- Furniture hardware
- Construction products
- Mechanical brackets
- Precision reinforced components
Advantages
Zytel 70G33L BK031 PA66 provides higher rigidity and dimensional accuracy than unreinforced nylon 66 while retaining useful toughness and processing stability.
The lubricated formulation helps improve mold release and production efficiency. Its combination of glass fiber reinforcement, chemical resistance and wear resistance makes it suitable for high-volume engineering components exposed to mechanical loads and demanding operating conditions.
Related Products
Typical Properties
| Property | Typical Value |
|---|---|
| Material | PA66-GF33 |
| Grade | 70G33L BK031 |
| Color | Black |
| Glass Fiber Content | 33% |
| Density | 1.39 g/cm³ |
| Tensile Strength at Break, Dry | 200 MPa |
| Tensile Strength at Break, Conditioned | 140 MPa |
| Elongation at Break, Dry | 3.5% |
| Elongation at Break, Conditioned | 5.0% |
| Viscosity Number | 153 cm³/g |
| Molding Shrinkage, Flow | 0.3% |
| Molding Shrinkage, Transverse | 1.1% |
| Processing Method | Injection Molding |
The exact-grade CAMPUS page confirms that Zytel 70G33L BK031 has dedicated ISO property and processing data. The values above are consistent with the corresponding Zytel 70G33L material platform and should be checked against the current grade-specific TDS before final publication.
Processing Recommendations
Zytel 70G33L BK031 PA66 is designed for injection molding. The resin should be properly dried before processing to control moisture and maintain surface appearance, dimensional stability and mechanical performance.
Injection conditions should be optimized according to wall thickness, flow length, mold design and glass fiber orientation. Fast filling is commonly recommended for thin-wall Zytel components, while thicker parts may require slower injection to improve surface and dimensional quality.
For official product information, please refer to the Celanese Zytel PA official product page .
For exact-grade technical data, please refer to the Zytel 70G33L BK031 CAMPUS technical datasheet .
FAQ
What is Zytel 70G33L BK031 PA66?
It is a black 33% glass fiber reinforced and lubricated PA66 resin developed for injection molding applications.
What is the main advantage of this grade?
It provides high stiffness, mechanical strength and dimensional stability while maintaining good toughness, moldability and wear resistance.
What is the difference between 70G33L and 70G33HS1L?
Zytel 70G33L is a lubricated GF33 PA66 grade, while 70G33HS1L additionally contains heat stabilization for improved long-term thermal-aging performance.
What does BK031 mean?
BK031 identifies the black color formulation of the grade.
What applications are suitable for Zytel 70G33L BK031?
It is suitable for automotive, electrical, industrial machinery, appliances, power tools, construction products and reinforced structural components.
Can original Zytel 70G33L BK031 PA66 be supplied?
Yes. Shenzhen Ruiqing International Trade Co., Ltd. can supply original Zytel PA66 materials with quotation and document support.

