Delrin® PC652 is a medium viscosity acetal homopolymer, with an advanced system of lubricants. It is developed for parts requiring low wear, low friction and low squeak noise for the healthcare industry.PREMIUM CONTROL for HEALTHCARE APPLICATIONSThis product is manufactured according to Good Manufacturing Practice (GMP) principles and generally accepted in food contact applications in Europe and the USA when meeting applicable use conditions. This product is also tested against ISO 10993-5 and -11 and selected parts of USP Class VI and US FDA drug and device master files (DMF and MAF) have been established.
Polymer Name: Polyacetal Homopolymer (POM)
Processing Methods: Injection Molding
Additives Included: Mold Release Agent, Lubricant (Unspecified)
Flexural Modulus: 2800.0 MPa
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Chemical Resistance
Mechanical Properties
| Value | Units | Test Method / Conditions | |
| Tensile Modulus | 3000 | MPa | ISO 527 |
| Yield Stress | 65 | MPa | ISO 527-1/-2 |
| Yield Strain | 11 | % | ISO 527-1/-2 |
| Nominal Strain at Break | 23 | % | ISO 527-1/-2 |
| Flexural Modulus | 2800 | MPa | ISO 178 |
| Tensile Creep Modulus (1 h) | 2400 | MPa | ISO 899-1 |
| Tensile Creep Modulus (1000 h) | 1600 | MPa | ISO 899-1 |
| Charpy Impact Strength (23°C) | 160 | kJ/m² | ISO 179/1eU |
| Charpy Impact Strength (-30°C) | 130 | kJ/m2 | ISO 179/1eU |
| Charpy Notched Impact Strength (23°C) | 7 | kJ/m2 | ISO 179-1/1eA |
| Charpy Notched Impact Strength (-30°C) | 6 | kJ/m2 | ISO 179-1/1eA |
| Izod Notched Impact Strength (23°C) | 6 | kJ/m2 | ISO 180/1A |
| Izod Notched Impact Strength (-40°C) | 5 | kJ/m2 | ISO 180/1A |
| Poisson's Ratio | 0.37 | - | ASTM D638 |
Physical Properties
| Value | Units | Test Method / Conditions | |
| Melt Volume - Flow Rate | 12 | cm³/10min | ISO 1133 |
| Load | 2.16 | kg | ISO 1133 |
| Molding Shrinkage - Parallel | 1.8 | % | ISO 294-4, 2577 |
| Molding Shrinkage - Normal | 1.7 | % | ISO 294-4, 2577 |
| Temperature | 190 | °C | ISO 1133 |
Thermal Properties
| Value | Units | Test Method / Conditions | |
| Melting Temperature (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) | 164 | °C | ISO 75-1/-2 |
| Coefficient of Linear Thermal Expansion - Parallel | 120 | E-6/K | ISO 11359-1/-2 |
| Coefficient of Linear Thermal Expansion - Normal | 120 | E-6/K | ISO 11359-1/-2 |
| Relative Temperature Index - Electrical (0.75 mm) | 50 | °C | UL 746B |
| Relative Temperature Index - Electrical (1.5 mm) | 110 | °C | UL 746B |
| Relative Temperature Index - Electrical (3 mm) | 110 | °C | UL 746B |
| Relative Temperature Index - Impact (0.75 mm) | 50 | °C | UL 746B |
| Relative Temperature Index - Impact (1.5 mm) | 85 | °C | UL 746B |
| Relative Temperature Index - Impact (3 mm) | 90 | °C | UL 746B |
| Relative Temperature Index - Strength (0.75 mm) | 50 | °C | UL 746B |
| Relative Temperature Index - Strength (1.5 mm) | 90 | °C | UL 746B |
| Relative Temperature Index - Strength (3 mm) | 95 | °C | UL 746B |
Flammability
| Value | Units | Test Method / Conditions | |
| Burning Behaviour (1.5 mm, Nominal Thickness) | HB | class | IEC 60695-11-10 |
| Burning Behaviour (Thickness h) | HB | class | IEC 60695-11-10 |
| Ul Recognition | Yes | - | UL 94 |
| Thickness Tested | 1.5 | mm | IEC 60695-11-10 |
Other Properties
| Value | Units | Test Method / Conditions | |
| Density | 1390 | kg/m³ | ISO 1183 |
Processing Information (Injection Molding)
| Value | Units | Test Method / Conditions | |
| Drying Recommended | Yes | - | - |
| Drying Temperature | 80 | °C | - |
| Drying Time (Dehumidified Dryer) | 2.0 - 4.0 | h | - |
| Processing Moisture Content | ≤0.2 | % | - |
| Melt Temperature Optimum | 215 | °C | - |
| Min. Melt Temperature | 210 | °C | - |
| Max. Melt Temperature | 220 | °C | - |
| Mold Temperature Optimum | 90 | °C | - |
| Min. Mold Temperature | 80 | °C | - |
| Max. Mold Temperature | 100 | °C | - |
| Hold Pressure Range | 80 - 100 | MPa | - |
| Hold Pressure Time | 8 | s/mm | - |
| Annealing Time - Optional | 30 | min/mm | - |
| Annealing Temperature | 160 | °C | - |
VDA Properties
| Value | Units | Test Method / Conditions | |
| Emissions | max. 8 | mg/100g/kg/100g | VDA 275 |
Chemical Resistance
| Chemical Type | Chemical Name | Resistance |
| Sterilization methods | Ethylene Oxide | Probably Resistant |
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Delrin® PC652 NC010
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