描述
Hostaform C 13031 ECO-C 872 is an unfilled, easy flow polyacetal polyoxymethylene (POM) copolymer supplied by Celanese Corporation. This grade is specifically engineered for injection molding applications requiring increased strength, rigidity, hardness, and sustainability. The “ECO-C 872” designation indicates the material contains circular (recycled) content, making it a more environmentally friendly alternative to standard POM grades .
Hostaform C 13031 ECO-C 872 delivers a tensile modulus of 3,050 MPa and yield stress of 68 MPa, providing superior mechanical performance for demanding precision parts. The material exhibits outstanding resistance to long-term fatigue, chemicals (including solvents, fuels, and strong alkalis), wear, creep, hydrolysis, stress cracking, and thermal and oxidative degradation.
The ECO-C grade combines the proven performance of the C 13031 platform with recycled resources, making it ideal for customers seeking to reduce their environmental footprint without compromising on mechanical properties. The material complies with PFOA, PFOS, RoHS, ELV, and REACH regulations.
Hostaform C 13031 ECO-C 872 Key Features
-
Sustainable/Circular Content: Contains recycled/recovered resources; supports reduced environmental footprint and circular economy initiatives
-
Higher Strength & Rigidity: Tensile modulus of 3,050 MPa and yield stress of 68 MPa – superior to standard C 13021
-
Easy Flow: MVR of 12 cm³/10min at 190°C/2.16kg for complex and thin-wall parts
-
Good Chemical Resistance: Resists solvents, fuels, strong alkalis; good hydrolysis resistance
-
Thermal & Oxidative Stability: High resistance to thermal and oxidative degradation over time
-
Good Heat Distortion Temperature: HDT of 107°C at 1.80 MPa
-
Low Moisture Absorption: Only 0.2% at equilibrium (50% RH), ensuring stable dimensions
-
Added Release Agent: Contains release agent for easier demolding
-
Regulatory Compliant: Meets PFOA, PFOS, RoHS, ELV, and REACH requirements
Related Products
- Hostaform C 13021 – Standard High Rigidity POM Copolymer
- Hostaform C 13021 XAP – Easy Flow Low Emission POM
- Hostaform C 13031 – High Strength POM Copolymer
- Hostaform C 13031 10/9022 – Black POM for Laser Welding
- Hostaform C 13031 ECO-B – Sustainable POM with Bio-Based Content
- Zytel ST801UV NC010 – Super Tough UV Stabilized PA66
Hostaform C 13031 ECO-C 872 Applications
Automotive Fuel Systems: Fuel system components requiring fuel contact resistance and sustainable material content
Precision Engineering: Precision gears, bearings, sliding elements requiring high precision, dimensional stability, and complex geometries enabled by easy flow
Automotive Interior & Mechanisms: Window regulator mechanisms, seat belt components, door lock components requiring high strength and low emission profiles
Sustainable Components: Parts where environmental compliance and circular/recycled content are required, such as OEM-driven sustainability initiatives
Hostaform C 13031 ECO-C 872 Technical Specifications
| Property | Test Condition | Standard | Value | Unit |
|---|---|---|---|---|
| Density | — | ISO 1183 | 1,410 | kg/m³ |
| Water Absorption | Saturation, 23°C, 2mm | Sim. to ISO 62 | 0.65 | % |
| Humidity Absorption | 50% RH, 2mm | Sim. to ISO 62 | 0.20 | % |
| MVR (Melt Volume Rate) | 190°C/2.16kg | ISO 1133 | 12 | cm³/10min |
| Tensile Modulus | 23°C | ISO 527-1/-2 | 3,050 | MPa |
| Tensile Stress at Yield | 23°C, 50mm/min | ISO 527 | 68 | MPa |
| Tensile Strain at Yield | 23°C, 50mm/min | ISO 527 | 8 | % |
| Nominal Strain at Break | 23°C | ISO 527 | 28 | % |
| Flexural Modulus | 23°C | ISO 178 | 3,000 | MPa |
| Tensile Creep Modulus (1h) | — | ISO 899-1 | 2,750 | MPa |
| Tensile Creep Modulus (1000h) | — | ISO 899-1 | 1,450 | MPa |
| Charpy Notched Impact | 23°C | ISO 179/1eA | 6.7 | kJ/m² |
| Charpy Unnotched Impact | 23°C | ISO 179/1eU | 200 | kJ/m² |
| Ball Indentation Hardness | H 358/30 | ISO 2039-1 | 156 | MPa |
| Poisson’s Ratio | — | — | 0.428 | — |
| HDT (1.80 MPa) | Unannealed | ISO 75-1/-2 | 107 | °C |
| HDT (0.45 MPa) | Unannealed | ISO 75-1/-2 | 161 | °C |
| Melting Temperature | 10°C/min | ISO 11357-3 | 170 | °C |
| CLTE (Parallel) | — | ISO 11359-1/-2 | 110×10⁻⁶ | 1/K |
| Thermal Conductivity (Melt) | — | ISO 22007-2 | 0.155 | W/(m·K) |
| Volume Resistivity | — | IEC 62631-3-1 | 1×10¹² | Ω·m |
| Surface Resistivity | — | IEC 62631-3-2 | 1×10¹⁴ | Ω |
| Dielectric Strength | — | IEC 60243-1 | 35 | kV/mm |
| Relative Permittivity (100Hz/1MHz) | — | IEC 62631-2-1 | 4.0/4.0 | — |
| Dissipation Factor (100Hz/1MHz) | — | IEC 62631-2-1 | 20/50 | ×10⁻⁴ |
| CTI (Comparative Tracking Index) | — | IEC 60112 | 600 | V |
| UL Flammability | 1.5-3.0mm | UL-94 | HB | — |
Processing Guide
| Parameter | Recommended Value |
|---|---|
| Drying Recommended | Generally not necessary |
| Drying Temperature (if needed) | 100 – 120°C |
| Drying Time (if needed) | 3 – 6 hours |
| Max. Moisture Content | ≤ 0.2% |
| Melt Temperature Optimum | 200°C |
| Melt Temperature Range | 190 – 210°C |
| Mold Temperature Optimum | 100°C |
| Mold Temperature Range | 80 – 120°C |
| Hold Pressure Range | 60 – 120 MPa |
| Back Pressure | 4 MPa |
| Max Screw Tangential Speed | ≤0.3 m/s |
Hostaform C 13031 ECO-C 872 FAQ
Q: What is Hostaform C 13031 ECO-C 872?
A: Hostaform C 13031 ECO-C 872 is an easy flow, high strength POM copolymer from Celanese with circular (recycled) content. It combines increased strength and rigidity with sustainability features.
Q: What does “ECO-C 872” mean?
A: “ECO-C” stands for sustainable product with circular (recycled) content. The “872” is a specific color designation. This indicates the material contains recycled/recovered resources and supports circular economy initiatives.
Q: How does ECO-C differ from ECO-B?
A: ECO-B contains bio-based (renewable) content, while ECO-C contains circular (recycled/recovered) content. Both are sustainable product lines from Celanese but utilize different types of sustainable feedstocks.
Q: What is the tensile modulus of Hostaform C 13031 ECO-C 872?
A: It offers tensile modulus of 3,050 MPa.
Q: Is drying required before processing?
A: Drying is generally not necessary due to low moisture absorption. However, if storage conditions have been poor, drying at 100–120°C for 3–6 hours is recommended.
Q: What are the recommended processing conditions?
A: Melt temperature 190–210°C (optimum 200°C), mold temperature 80–120°C (optimum 100°C), with holding pressure 60–120 MPa.
Q: What applications is this material suitable for?
A: It is ideal for automotive fuel systems, precision gears, window regulators, seat belt components, and any applications requiring sustainability along with high strength and easy flow.
Q: Is this material compliant with regulations?
A: Yes, Hostaform C 13031 ECO-C 872 complies with PFOA, PFOS, RoHS, ELV, and REACH regulations.
