CELANESE HOSTAFORM C 27021 TF Modified POM Resin

Physical Properties

• Density: Has a density of 1.51 g/cc (0.0546 lb/in³) as per ISO 1183, making it a dense material ideal for high – strength components.
• Melt Flow: Boasts a melt flow rate of 17 g/10 min at 190 °C/2.16 kg (ISO 1133), enabling rapid and efficient molding processes.

Polymer Properties:

1. Base Material: Polyoxymethylene (POM) Copolymer
2. Modification Features:
   
   • High – flow grade for efficient injection molding of complex parts.
   • Incorporates PTFE, reducing friction for smooth sliding motion.
   • Strong chemical resistance against solvents, fuels, and alkalis.
   • Resistant to thermal and oxidative degradation over time.
   • Good hydrolysis resistance, suitable for humid conditions.

Applications:

• Automotive: Used in automotive window regulators for smooth operation, and in transmission components to resist wear and chemical exposure from fluids.
• Industrial Machinery: Applied in conveyor rollers to minimize energy consumption and in pump impellers for reliable performance in industrial settings.
• Electromechanical Devices: Employed in printer paper – feed mechanisms to prevent jams and in camera lens – adjustment parts for precise movement.

Regulatory and Compliance Data

• Food Contact Compliance: Most Hostaform® grades, including C 27021 TF, comply with FDA and EU regulations (2002/72/EC) for food contact, and standard grades have passed WRAS, KTW, and NSF drinking water tests.
• Medical Applications: MT grades of Hostaform® (with an active Drug Master File, No. 11559) comply with USP Class VI guidelines, though C 27021 TF is not specifically marketed for medical use.
• RoHS and Environmental Standards: Free of heavy metals and compliant with RoHS, PFOS, and PFOA regulations, ensuring environmental safety.
• UL Yellow Cards: Certified for safety and quality, meeting UL performance criteria for mechanical and thermal properties.

Processing Advantages

Hostaform® C 27021 TF’s high-flow characteristics (melt flow rate ~27 g/10 min) make it ideal for injection molding complex, thin-walled parts with minimal defects. Its processing parameters include:

• Melt Temperature: 190–210°C
• Mold Temperature: 80–120°C
• Injection Pressure: 600–1,200 bar These parameters ensure excellent mold filling and surface quality, reducing cycle times and production costs.