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Help CenterFatigue Resistant POM K300 9g/10min Melt Flow Rate 60MPa Tensile for Snap Fit Components
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As a professional manufacturer specializing in engineering plastics, Ailide Polymer (Jiangsu) Co., Ltd. is proud to introduce our Fatigue Resistant POM K300 grade. This high-performance polyoxymethylene copolymer is designed specifically for demanding snap-fit applications, offering an exceptional combination of melt flow stability and mechanical strength. With a melt flow rate of 9 g/10min and tensile strength of 60 MPa, it provides the precision molding and long-term durability required for repeated assembly and disassembly cycles.
Our POM K300 is formulated to withstand cyclic loading without crack initiation, ensuring reliable performance in automotive interiors, consumer electronics, and industrial fastening systems. The material exhibits low warpage, excellent dimensional stability, and superior surface finish – key attributes for parts that must click together securely over thousands of uses.
Key Features & Technical Specifications
Outstanding Fatigue Resistance: Designed to endure repeated stress cycles without failure, ideal for snap-fit joints and living hinges.
Optimized Melt Flow (9 g/10min): Ensures easy processing in injection molding, filling thin-wall cavities and complex geometries precisely.
High Tensile Strength (60 MPa): Provides strong mechanical interlocking for secure part assembly and disassembly.
Low Coefficient of Friction: Allows smooth insertion and removal of snap-fit components without excessive wear.
Excellent Chemical Resistance: Resists oils, greases, and common solvents, maintaining performance in harsh environments.
Good Dimensional Stability: Low moisture absorption and low shrinkage ensure tight tolerances over time.
| Property | Value | Test Method |
| Melt Flow Rate (190°C/2.16kg) | 9 g/10min | ISO 1133 |
| Tensile Strength (Yield) | 60 MPa | ISO 527 |
| Elongation at Break | 45% | ISO 527 |
| Flexural Modulus | 2,600 MPa | ISO 178 |
| Notched Izod Impact (23°C) | 6 kJ/m² | ISO 180 |
| Density | 1.41 g/cm³ | ISO 1183 |
| Mold Shrinkage (2mm) | 1.8 - 2.1% | ISO 294 |
Benefits for Your Snap-Fit Applications
Reduced Assembly Cost: Snap-fit designs eliminate the need for additional fasteners, adhesives, or welding, decreasing labor and material expenses.
Longer Product Life: Fatigue resistance prevents cracking after repeated use, ensuring your products remain functional for years.
Design Flexibility: The balanced flow and strength allow for thin wall sections, complex geometries, and multi-cavity molds with consistent quality.
Consistent Molding: Our K300 grade offers a broad processing window (190-220°C), minimizing rejects and cycle time variations.
Global Availability: We export to over 15 markets worldwide, providing reliable supply chains and technical support.
Why Choose Ailide Polymer?
With a dedicated factory spanning 1,000–3,000 square meters and a team of 11–50 experienced professionals, we focus on delivering consistently high-quality engineering plastics. Our manufacturing processes are strictly controlled, from raw material selection to final packaging, ensuring every batch meets rigorous specifications. We serve clients in North America, South America, Europe, Southeast Asia, Africa, Oceania, the Middle East, and other regions – a testament to our reliability and commitment to excellence.
Our POM K300 has been tested in real-world snap-fit assemblies, demonstrating over 1 million cycles without significant loss of retention force. We stand behind our material with responsive customer service, free sample support, and customized color or additive options upon request.
Ready to improve your snap-fit component performance? Contact us today for a quote or technical consultation. Let Ailide Polymer be your trusted partner in engineering solutions.
Frequently Asked Questions (FAQ)
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Q: What is the recommended injection molding temperature for POM K300?
A: The typical processing temperature range is 190°C to 220°C. Mold temperature should be kept between 80°C and 100°C for optimal crystallization and dimensional stability.
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Q: Can this grade be used for living hinges in addition to snap-fits?
A: Yes, its excellent fatigue resistance makes it suitable for thin living hinges that require repeated bending. However, we recommend conducting application-specific testing for hinge designs.
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Q: What colors are available?
A: Standard colors are natural (translucent) and black. Colored masterbatches can be added during processing, or we can supply pre-colored pellets according to your RAL or Pantone requirements.
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Q: How is the material packaged?
A: Standard packaging is 25 kg PE-lined woven bags. Big bags (500 kg, 1000 kg) and customized packaging are available upon request.
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Q: Does this POM contain any lubricants or additives for mold release?
A: The base grade is lubricant-free, but we can incorporate internal lubricants (e.g., silicone or PTFE) to improve mold release and reduce friction if required.
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Q: What is the maximum number of snap-fit cycles before failure?
A: Under typical assembly conditions (controlled deflection), the material can endure over 100,000 cycles without failure. The exact number depends on part geometry, deflection strain, and environmental factors.
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Q: Can I get a free sample for testing?
A: Yes, we offer free samples (up to 5 kg) for qualified customers. Please contact our sales team with your application details to arrange shipping.
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Q: How does this grade compare to standard POM (e.g., 100P) in terms of fatigue?
A: K300 is specifically formulated with a higher molecular weight and optimized stabilizer system, providing approximately 30% better fatigue endurance compared to general-purpose POM grades under the same test conditions.
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