CELANESE HOSTAFORM C 27021 LS Modified POM Resin

Physical Properties

• Density: Measured per ISO 1183, the material’s density is 1.41 g/cc (0.0509 lb/in³), defining its mass per unit volume for standard characterization.
• Density of Compound: The compound density is 1.20 g/cc (0.0434 lb/in³), noted without specified standard for component-specific applications.
• Water Absorption at Saturation: As per ISO 62, the material absorbs 0.65% water at saturation, indicating low moisture retention when fully submerged.
• Linear Mold Shrinkage, Flow: By ISO 294-4, flow-direction shrinkage is 0.019 cm/cm (0.019 in/in), crucial for ensuring dimensional stability in molded parts.
• Linear Mold Shrinkage, Transverse: Per ISO 294-4, transverse shrinkage is 0.018 cm/cm (0.018 in/in), highlighting directional differences in component contraction.
• Melt Flow: Under ISO 1133 at 190°C/2.16 kg, the melt flow rate is 24 g/10 min [cm³/10min], reflecting high processability for injection molding.

Polymer Properties:

1. Base Material: Polyoxymethylene (POM) Copolymer
2. Modification Features:
   
   • High – flow grade enabling efficient injection molding.
   • Exceptional chemical resistance against solvents, fuels, and strong alkalis.
   • Good wear resistance for long – lasting performance in moving parts.
   • Resistant to long – term fatigue, creep, hydrolysis, and stress cracking.
   • High resistance to thermal and oxidative degradation.
   • UV – stabilized, suitable for outdoor or sunlight – exposed applications.

Applications:

1. Automotive Interior Components:due to its low-emission properties and UV resistance, which ensure compliance with stringent regulations and durability under prolonged sunlight exposure.
   
   • Ventilation and Climate Control Systems: Used for air vents, control knobs, and housing components due to its high flowability, allowing complex geometries, and low VOC emissions.
   • Interior Trim and Clips: Employed in trim panels, clips, and fasteners for its high rigidity (tensile modulus ~2600 MPa) and creep resistance, ensuring long-term dimensional stability.
   • Seatbelt Components: Utilized in seatbelt guides and adjusters, leveraging its wear resistance and low friction properties.
2. Industrial Components:The material’s high mechanical strength, chemical resistance, and ease of processing make it ideal for industrial applications requiring precision and durability.
   
   • Gears and Bearings: Used in small gears and bearings for machinery due to its low friction coefficient (~0.2–0.3) and wear resistance, reducing maintenance needs.
   • Conveyor System Components: Employed in rollers, guides, and chain links, benefiting from its high rigidity and resistance to solvents and fuels.
   • Pump and Valve Parts: Applied in pump housings and valve components exposed to chemicals, leveraging its hydrolysis resistance and chemical stability.
3. Consumer Goods:Hostaform® C 27021 LS is used in consumer products requiring durability, aesthetic quality, and compliance with regulatory standards.
   
   • Appliance Components: Found in washing machine parts, such as detergent dispensers, due to its hydrolysis resistance and ability to withstand repeated exposure to water and detergents.
   • Sporting Goods: Used in components like ski bindings and fishing reel parts for its toughness and UV resistance, ensuring performance in outdoor conditions.
   • Food Contact Applications: Employed in food processing equipment components (e.g., conveyor belts, cutting board supports) due to FDA and EU compliance.
4. Medical Devices (Select Grades):Certain grades of Hostaform® C 27021 LS, such as MT grades, comply with USP Class VI guidelines, making them suitable for medical applications.
   
   • Surgical Instrument Handles: Used for non-implantable components due to biocompatibility and resistance to sterilization chemicals.
   • Drug Delivery Devices: Applied in inhaler components and insulin pens, leveraging high flowability for intricate designs and chemical resistance to pharmaceuticals.