Kolon Kocetal K300 is a general-purpose Polyoxymethylene (POM) copolymer resin designed for injection molding. It offers a balanced combination of high mechanical strength, excellent fatigue resistance, and thermal stability. Available in standard 25kg packaging with comprehensive Technical Data Sheets (TDS).
| Manufacturer | Kolon |
|---|---|
| MFR | 9.0 g/10min |
| Density | 1.41 g/cm³ |
| Tensile Strength at Yield | 64 MPa |
| Tensile Strain at Break | 40 % |
Note: See the product description for additional technical specifications
Kocetal® POM K300 is a high-performance, general-purpose polyoxymethylene (POM) resin produced by Kolon Plastics in South Korea. As a semi-crystalline thermoplastic, it excels in mechanical strength and long-term stability, making it an ideal engineering plastic for replacing metal parts.
Core Definition: Premium POM Virgin Granules.
Key Selling Points:
Excellent Balance: Provides an optimal balance of strength, rigidity, and toughness for various industrial injection molding applications.
Low Friction & Wear Resistance: Features superior self-lubricating properties, ideal for sliding components.
Outstanding Dimensional Stability: Extremely low water absorption ensures precision parts maintain their shape in diverse environments.
Brand Authority: As a leading plastic resin material wholesaler in china, ZiJun Plastics provides stable stock supply and professional technical support.
To ensure precise alignment with your production requirements, the following are the core technical parameters for Kocetal POM K300. All data are based on standard laboratory environment testing.
| Physical Properties | Value | Test Standard |
| Density | 1.41 g/cm³ | ASTM D792 / ISO 1183 |
| Melt Flow Rate (190°C, 2.16 kg) | 9.0 g/10min | ASTM D1238 / ISO 1133 |
| Mold Shrinkage (Parallel) | 1.8 – 2.2 % | ASTM D955 |
| Mold Shrinkage (Parallel) | 2 % | ISO 294-4 |
| Water Absorption (24 hr, 23°C) | 0.22 % | ASTM D570 |
| Water Absorption (24 hr, 23°C) | 0.59 % | ISO 62 |
| Rockwell Hardness (M-Scale) | 80 | ASTM D785 / ISO 2039-2 |
| Mechanical Properties | Value | Test Standard |
| Tensile Strength (Yield, 50mm/min) | 64 MPa | ASTM D638 |
| Tensile Strength (23°C) | 65 MPa | ISO 527-2 |
| Tensile Strain (Break, 50mm/min) | 40 % | ASTM D638 |
| Tensile Strain (Break, 23°C) | 35 % | ISO 527-2 |
| Flexural Modulus (2mm/min, 3.2mm) | 2500 MPa | ASTM D790 |
| Flexural Modulus (23°C) | 2700 MPa | ISO 178 |
| Flexural Strength (2mm/min, 3.2mm) | 94 MPa | ASTM D790 |
| Flexural Strength (23°C) | 85 MPa | ISO 178 |
| Charpy Notched Impact Strength (23°C) | 7 kJ/m² | ISO 179 1eA |
| Izod Notched Impact Strength (6.4mm) | 67 kJ/m² | ASTM D256 |
Professional Note: The above data is for reference only. Due to differences in processing equipment and mold design, we recommend conducting a trial mold before mass production.
Due to its excellent processing flow and mechanical properties, K300 is widely used in the following precision industries:
Automotive: With its oil resistance and high fatigue strength, it is commonly used for seat belt components, fuel level sensors, window lifter gears, and interior switches.
Electronics: Used in printer gears, recorder mechanism parts, and washing machine clutch components. Its excellent insulation ensures the safety of electrical operation.
Consumer Goods: Typical applications include zipper fasteners, sprayer nozzles, furniture slides, and high-end toy precision parts.
Machinery: Its self-lubricating characteristics make it perfect for bearings, cams, valve components, and conveyor chains.
To help you select the most suitable material, we compare K300 with other common materials:
| Dimension | POM K300 (Kolon) | POM K700 (High Flow) | Nylon PA6 (GF30) |
| Main Features | Balanced, Versatile | Ultra-high flow for thin walls | Higher strength, high absorption |
| Dimensional Stability | Excellent (No absorption) | High | Fair (Affected by humidity) |
| Wear Resistance | Superior (Self-lubricating) | Superior | Good (Requires additives) |
| Cost Comparison | Medium | Medium | Depends on brand |
To achieve optimal product quality, please refer to the following processing parameters:
Drying: Although POM has low hygroscopicity, it is recommended to dry at 80°C – 90°C for 2 – 4 hours to remove surface moisture and prevent silver streaks.
Melt Temp: The recommended range is 180°C – 210°C. Note: Do not exceed 230°C to avoid material degradation and the generation of formaldehyde gas.
Mold Temp: Recommended between 60°C – 100°C. Higher mold temperatures help improve surface gloss, crystallinity, and dimensional stability.
Professional Tip: If the machine is stopped for more than 20 minutes, be sure to purge the barrel to prevent material decomposition from heat.
Q1: Can Kolon Kocetal K300 be used in food contact applications?
A: Yes, certain grades of the Kocetal series comply with FDA or EU food contact standards. Please contact us to obtain the compliance certificate for a specific batch before application.
Q2: Why is K300 suitable for replacing metal in gear production?
A: Because POM K300 offers high fatigue life and self-lubricating properties. It operates with low noise, requires no additional lubrication, and significantly reduces processing costs through one-step injection molding.
Q3: Do you provide the original TDS and MSDS for K300?
A: As a professional plastic resin material wholesaler in china, ZiJun Plastics provides complete original TDS, MSDS, and COA quality certification documents for every batch delivered to customers.
