描述

Hostaform C 9021 is a Celanese standard POM copolymer resin developed for injection molding applications requiring a balanced combination of rigidity, toughness, dimensional stability and chemical resistance. As a polyoxymethylene engineering plastic, this material provides the excellent mechanical performance expected from acetal copolymer technology, including high stiffness, hardness, fatigue resistance and long-term durability.

Compared with general-purpose thermoplastics, Hostaform C 9021 offers outstanding resistance to solvents, fuels, strong alkalis and hydrolysis, making it suitable for components exposed to demanding operating environments. The material also provides excellent resistance to thermal and oxidative degradation, helping maintain stable performance during long-term service.

The balanced properties of Hostaform C 9021 make it a versatile engineering plastic widely used across automotive, precision engineering, electrical and consumer appliance industries. Its combination of mechanical strength, dimensional accuracy and reliable processing performance allows manufacturers to produce durable precision components with consistent quality.

Hostaform C 9021 is suitable for applications where reliable mechanical performance, wear resistance and dimensional stability are required. It provides an effective solution for injection molded components that need long service life and stable performance under continuous use.

Hostaform C 9021 Key Features

• High rigidity and hardness
• Excellent toughness
• Good fatigue resistance
• Excellent dimensional stability
• Low moisture absorption
• Good chemical resistance
• Excellent resistance to solvents and fuels
• Good hydrolysis resistance
• High resistance to thermal and oxidative degradation
• Stable injection molding performance

Hostaform C 9021 Typical Applications

Automotive Applications

Hostaform C 9021 is widely used for automotive engineering components requiring strength and dimensional accuracy.

Applications include:

• Automotive mechanisms
• Fuel system components
• Precision clips and fasteners
• Structural mechanical parts

Precision Engineering Applications

Suitable for:

• Gears
• Bearings
• Bushings
• Mechanical assemblies
• Precision moving components

Electrical & Electronic Applications

Applications include:

• Electrical housings
• Precision components
• Connectors
• Switching mechanisms

Household Appliances

Used in:

• Appliance mechanisms
• Moving parts
• Structural components

Material Advantages

Hostaform C 9021 provides a balanced performance profile that combines mechanical strength, processing reliability and environmental resistance.

The material maintains excellent dimensional stability after molding, allowing manufacturers to produce precision parts with consistent tolerances. Compared with many conventional plastics, POM copolymer materials provide lower moisture absorption, better wear resistance and improved long-term mechanical reliability.

The excellent chemical resistance of Hostaform C 9021 allows it to perform effectively in applications exposed to fuels, solvents, cleaning agents and industrial chemicals.

For manufacturers requiring a dependable engineering plastic for precision injection molding, Hostaform C 9021 provides a proven solution with stable processing characteristics and reliable end-use performance.

Hostaform C 9021 Typical Properties

Processing Guidelines

Related Products

• Hostaform C 13021 – High Rigidity POM Copolymer
• Hostaform C 13031 – High Strength POM Copolymer
• Hostaform C 27021 XAP2 – Easy Flow Low Emission POM
• Hostaform C 36021 – Very High Flow POM
• Zytel ST801UV NC010 – Super Tough UV Stabilized PA66

• Hostaform C 13021 – High Rigidity POM Copolymer
  https://szrqchem.com/products/hostaform-c-13021

Similar to other Celanese POM materials such as Hostaform C 13021 and Hostaform C 27021, this grade provides excellent dimensional stability and injection molding performance for precision applications.

Technical Documents

We provide technical documents and application support for Hostaform C 9021 POM resin.

Available documents include:

• TDS (Technical Data Sheet)
• SDS (Safety Data Sheet)
• COA (Certificate of Analysis)

Our team can assist with material selection, application evaluation and injection molding recommendations.

External Reference

Additional engineering plastic property information can be referenced through:

Material Property Database

Hostaform C 9021 FAQ

Q: What is this POM copolymer grade?
A: It is a standard, high rigidity, unfilled POM copolymer from Celanese for injection molding applications requiring excellent mechanical properties, chemical resistance, and dimensional stability.

Q: What is the flow rate of this material?
A: It offers MVR of 8 cm³/10min at 190°C/2.16kg – a good balance of flow and mechanical properties.

Q: What is the tensile modulus?
A: It offers tensile modulus of 2,800 MPa.

Q: What is the impact strength?
A: It offers Charpy notched impact of 6 kJ/m² at 23°C.

Q: How does this grade differ from C 13021?
A: Both are very similar. C 9021 has slightly lower flow (MVR 8 vs 12 cm³/10min) and offers slightly higher yield strain (10% vs 9%), making it suitable for parts requiring greater toughness.

Q: Is drying required before processing?
A: Generally not necessary. If storage conditions have been poor (water contact or condensed water), 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 maximum moisture content below 0.2%.

Q: What applications is this material suitable for?
A: Widely used in automotive precision gears, window regulators, seat belt components, connectors, relays, and domestic appliance components.

Q: Is this material FDA compliant?
A: For food contact compliance, the food grade variant C 9021 FC is available. Standard grade may not be FDA compliant.

Q: Is this material UV stabilized?
A: For UV stabilized applications, the LS variant is available.

Request Hostaform C 9021 Quote

We supply Hostaform C 9021 POM resin with technical support, material sourcing services and complete documentation support.

Contact us for:

• Competitive quotation
• Material availability
• TDS / SDS documents
• Application support
• Injection molding recommendations