Delrin® 300CP is a medium-high viscosity acetal homopolymer with improved thermal stability and an outstanding balance of ease of processing and part performance.
Polymer Name: Polyacetal Homopolymer (POM)
Processing Methods: Injection Molding, Extrusion
Additives Included: Mold Release Agent
Flexural Modulus: 3000.0 MPa
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Properties
Mechanical Properties
| Value | Units | Test Method / Conditions | |
| Tensile Modulus | 3100 | MPa | ISO 527-1/-2 |
| Yield Stress | 71 | MPa | ISO 527-1/-2 |
| Yield Strain | 23 | % | ISO 527-1/-2 |
| Flexural Modulus | 3000 | MPa | ISO 178 |
| Shear Modulus | 1120 | MPa | ISO 6721 |
| Poisson's Ratio | 0.37 | - | - |
| Nominal Strain (at Break) | 40 | % | ISO 527-1/-2 |
| Charpy Impact Strength (at 23°C) | N | kJ/m² | ISO 179/1eU |
| Charpy Impact Strength (at -30°C) | 340 | kJ/m² | ISO 179/1eU |
| Notched Charpy Impact Strength (at 23°C) | 10.5 | kJ/m² | ISO 179/1eA |
| Notched Charpy Impact Strength (at -30°C) | 10 | kJ/m² | ISO 179/1eA |
Typical Properties
| Value | Units | Test Method / Conditions | |
| Resin Identification | POM | - | ISO 1043 |
Thermal Properties
| Value | Units | Test Method / Conditions | |
| Melt Temperature (at 10°C/min) | 178 | °C | ISO 11357-1/-3 |
| Temperature of Deflection Under Load (1.8 Mpa) | 97 | °C | ISO 75-1/-2 |
| Temperature of Deflection Under Load (0.45 Mpa) | 165 | °C | ISO 75-1/-2 |
| Coefficient of Linear Thermal Expansion (Parallel) | 110 | E-6/K | ISO 11359-1/-2 |
| Coefficient of Linear Thermal Expansion (Normal) | 110 | E-6/K | ISO 11359-1/-2 |
Electrical Properties
| Value | Units | Test Method / Conditions | |
| Surface Resistivity | min. 1E15 | Ohm | IEC 62631-3-2 |
| Relative Permittivity (at 100Hz) | 3.8 | - | IEC 62631-2-1 |
| Relative Permittivity (at 1MHz) | 3.5 | - | IEC 62631-2-1 |
| Dissipation Factor (at 1 MHz) | 56 | E-4 | IEC 62631-2-1 |
| Comparative Tracking Index | 600 | - | IEC 60112 |
| Volume Resistivity | min. 1E13 | Ohm.m | IEC 62631-3-1 |
Flammability
| Value | Units | Test Method / Conditions | |
| FMVSS Class | B | - | ISO 3795 (FMVSS 302) |
| Burning Rate (at 1mm Thickness) | max. 80 | mm/min | ISO 3795 (FMVSS 302) |
Other Properties
| Value | Units | Test Method / Conditions | |
| Humidity Absorption (at 2mm) | 0.2 | % | Sim. to ISO 62 |
| Water Absorption (at 2mm) | 0.9 | % | Sim. to ISO 62 |
| Density | 1420 | kg/m³ | ISO 1183 |
| Density of Melt | 1160 | kg/m³ | - |
Processing Information (Injection Molding)
| Value | Units | Test Method / Conditions | |
| Drying Recommended | yes | - | - |
| Drying Temperature | 80 | °C | - |
| Drying Time (Dehumidified Dryer) | 2 - 4 | h | - |
| Processing Moisture Content | max. 0.2 | % | - |
| Hold Pressure Range | 80 - 100 | MPa | - |
| Hold Pressure Time | 8 | s/mm | - |
| Ejection Temperature | 135 | °C | - |
| Annealing Temperature | 160 | °C | - |
| Melt Temperature (Optimum) | 215 | °C | - |
| Melt Temperature (Minimum) | 210 | °C | - |
| Melt Temperature (Maximum) | 220 | °C | - |
| Maximum Screw Tangential Speed | 0.2 | m/s | - |
| Mold Temperature (Optimum) | 90 | °C | - |
| Mold Temperature (Minimum) | 80 | °C | - |
| Mold Temperature (Maximum) | 100 | °C | - |
| Annealing Time (Optional) | 30 | min/mm | - |
VDA Properties
| Value | Units | Test Method / Conditions | |
| Emissions | max. 8 | mg/kg | VDA 275 |
Rheological Properties
| Value | Units | Test Method / Conditions | |
| Melt Volume-Flow Rate (at 190°C, 2.16 kg) | 6 | cm³/10min | ISO 1133 |
| Melt Mass Flow Rate (at 190°C, 2.16 kg) | 7 | g/10min | ISO 1133 |
| Mold Shrinkage (Parallel) | 2.1 | % | ISO 294-4, 2577 |
| Mold Shrinkage (Normal) | 1.8 | % | ISO 294-4, 2577 |
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Delrin® 300CP NC010
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