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Help CenterDuPont 70G25HSLR PA66 GF25 Heat Stabilized Hydrolysis Resistant Pellets
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As a dedicated plastics specialist, Shanghai Wenqin Plastics is proud to offer the DuPont 70G25HSLR, a premium engineering plastic compound designed for demanding environments. This PA66 GF25 grade is not just another nylon; it's a heat-stabilized and hydrolysis-resistant solution engineered to maintain performance where heat and moisture are constant challenges. We understand that component failure is not an option for our global clientele across automotive, electrical, and industrial sectors. That's why we supply this high-performance material, helping you build parts that offer exceptional durability, dimensional stability, and long-term reliability, directly contributing to the longevity of your final products.
This advanced compound combines the inherent strength of Polyamide 66 with 25% glass fiber reinforcement and a specialized additive package. The result is a material that excels under stress.
Superior Thermal and Hydrolytic Stability: The primary advantage of 70G25HSLR is its resistance to degradation. The heat stabilization package allows it to withstand prolonged exposure to elevated temperatures common in under-hood automotive applications. Simultaneously, its hydrolysis resistance protects the polymer chains from breaking down in humid or wet environments, preventing significant loss of mechanical properties over time.
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Enhanced Mechanical Performance: The glass fiber reinforcement provides a substantial boost to the base resin's capabilities.
Property Typical Value Benefit Tensile Strength High Withstands high structural loads Flexural Modulus High Excellent stiffness and rigidity Impact Resistance Good Resists cracking and breaking Dimensional Stability Excellent Minimal warpage, precise parts Wide Processing Window: Designed for efficiency, this pellet form material is suitable for standard injection molding equipment. It offers good flow characteristics, allowing for the production of complex, thin-walled components with consistent quality.
Broad Application Suitability: This material is a trusted choice for critical components. Its property profile makes it ideal for:
Automotive: Engine covers, radiator end tanks, intake manifolds, electrical housings.
Electrical & Electronics: Connectors, circuit breakers, coil bobbins, switchgear components.
Industrial: Pump housings, gears, fan blades, and other mechanical parts exposed to heat and humidity.
Choosing a material supplier is as crucial as selecting the material itself. Shanghai Wenqin Plastics, operating from a strategic location in Shanghai, ensures reliable supply chains to major ports like Shanghai and Ningbo. Our operations are backed by a robust quality management system certified under ISO 9001, among other standards, guaranteeing that every batch of DuPont 70G25HSLR meets stringent specifications. We serve a truly global market, from North America and Western Europe to Southeast Asia and Africa, proving our capability to support international projects. For engineers and purchasers seeking a proven, reliable material to solve thermal and hydrolytic challenges, this DuPont grade represents a smart investment. Contact us today to discuss your project requirements, request samples, or place a trial order.
Frequently Asked Questions (FAQ)
Q: What does "HSLR" stand for in the grade name 70G25HSLR?
A: HSLR stands for Heat Stabilized and Hydrolysis Resistant. This indicates the material contains specific additives to protect it from long-term thermal aging and degradation caused by exposure to moisture or humid conditions.Q: How does the hydrolysis resistance of this grade compare to standard PA66 GF25?
A: It is significantly improved. Standard PA66 can absorb moisture, which plasticizes it (increasing toughness short-term) but also leads to hydrolysis, breaking polymer chains and reducing strength over time. The HSLR version is formulated to slow this chemical process dramatically, maintaining mechanical properties for much longer in wet environments.Q: What is the maximum continuous use temperature for this material?
A: While specific values depend on the application environment (stress, humidity), heat-stabilized PA66 GF25 grades like this one are typically rated for long-term use in temperatures ranging from 120°C to 140°C (248°F to 284°F). For precise data, technical datasheets with detailed thermal aging curves should be consulted.Q: Is pre-drying required before processing?
A: Yes, absolutely. Like most polyamides (nylons), this material is hygroscopic and must be thoroughly dried before processing to prevent defects like splay, bubbles, or loss of properties. Recommended drying conditions are typically 80-90°C for 3-4 hours in a dehumidifying hopper dryer.Q: Can this material be used for food contact or medical applications?
A: The standard 70G25HSLR grade is not specifically certified for food contact or medical use. It is formulated for industrial technical applications. For regulated applications, specialized, compliant grades from the manufacturer would be required.Q: Do you offer this material in colors other than natural?
A: The product is supplied in its natural (often beige) pellet form. Custom coloring is often available upon request through masterbatch addition during molding or by ordering pre-colored compound variants, subject to minimum order quantities.Q: What are the key differences between PA6 and PA66, and why choose PA66 GF25?
A: PA66 generally has a higher melting point, better rigidity, and superior resistance to creep compared to PA6. When reinforced with glass fiber and stabilized for heat/hydrolysis, PA66 GF25 becomes the preferred choice for high-temperature, structurally demanding applications where long-term performance is critical.Q: What packaging is used for shipment?
A: The material is typically packed in standard 25 kg multi-layer paper bags with polyethylene liners to ensure moisture protection during storage and transit. Other packaging options like big bags may be available for larger orders.
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