polyoxymethylene chemical resistance

Welcome to our comprehensive guide on the chemical resistance of polyoxymethylene, also known as POM. As a reliable and professional source, we aim to provide valuable insights on the properties and applications of POM to ensure robust and efficient use in diverse industries in Singapore.

Understanding the chemical resistance of POM is essential for engineers and designers involved in precision components, automotive, electronics, and consumer goods industries. By exploring the chemical compatibility, properties, and considerations of polyoxymethylene, we can make informed decisions when selecting materials for various applications.

In this guide, we will discuss the chemical resistance chart of POM, detailing its compatibility with different substances. Moreover, we will explore the versatile applications of polyoxymethylene, from gears and bearings to automotive parts and electrical connectors, highlighting its unique benefits.

Stay tuned as we delve into the factors to consider when using POM, including temperature resistance, mechanical properties, and dimensional stability. Lastly, we will conclude our guide with essential remarks on the chemical resistance of polyoxymethylene, summarizing its key properties and emphasizing the importance of thorough testing for optimal performance.

Join us as we navigate through the world of POM, unraveling its chemical resistance and uncovering the limitless possibilities it offers in the dynamic landscape of Singapore’s industries.

Polyoxymethylene Chemical Resistance Chart

Polyoxymethylene, also known as POM, is an engineering plastic that offers a wide range of chemical resistance. Understanding its chemical compatibility is essential for selecting the right material for your specific application. The POM chemical resistance chart provides valuable insights into the substances POM can resist and those it may have limited resistance to.

Chemicals POM shows excellent resistance to:

  • Acetaldehyde
  • Acetamide
  • Acetone
  • Acetyl bromide
  • Alcohols (including amyl, benzyl, butyl, and methyl)
  • Aldehydes
  • Aliphatic hydrocarbons
  • Amines
  • Aromatic hydrocarbons

These chemicals are commonly found in various industrial applications, and POM’s resistance to them makes it a reliable choice for diverse environments.

Limitations in POM chemical resistance:

While POM exhibits excellent chemical resistance to the substances mentioned above, it is important to note its limited resistance to certain acids, bases, and solvents. These include:

  • Acetic acid
  • Glacial acetic acid
  • Chlorinated solvents

When considering the use of POM in applications involving these substances, additional evaluation and testing are necessary to ensure optimal performance and longevity.

POM chemical resistance chart

Versatile Applications of Polyoxymethylene

Polyoxymethylene, also known as POM, is a widely used engineering plastic with a range of versatile applications. Let’s explore some of the key uses and benefits of POM in different industries.

1. Gears and Bearings

POM’s high strength, stiffness, and low friction properties make it an excellent choice for gears and bearings. It offers exceptional wear resistance, ensuring efficient and reliable performance in machinery and equipment.

2. Valves and Pump Components

Due to its dimensional stability and resistance to various chemicals, POM is commonly used in valves and pump components. It provides durability and reliability even in demanding environments.

3. Electrical Connectors

POM’s excellent electrical insulation properties make it suitable for electrical connectors. It offers reliable performance, ensuring proper transmission of signals and power in electronic devices.

4. Automotive Parts

POM’s high strength, low friction, and dimensional stability make it well-suited for automotive applications. It is widely used in components such as fuel systems, interior trims, door handles, and seatbelt buckles.

5. Consumer Goods

With its smooth surface finish and aesthetic appeal, POM is commonly used in consumer goods. It is found in products such as zippers, pens, guitar picks, and various other household items.

6. Other Engineering Applications

In addition to the above, POM finds applications in various engineering fields such as robotics, manufacturing equipment, and precision instruments. Its versatility and chemical resistance make it a popular choice among engineers and designers.


POM applications

Factors to Consider for Polyoxymethylene Applications

When utilizing polyoxymethylene (POM) for specific applications, it is essential to take into account several critical factors. These considerations play a crucial role in ensuring optimal performance and reliability in engineering plastic designs. By thoroughly evaluating POM’s material properties, such as temperature resistance, mechanical characteristics, dimensional stability, thermal expansion, water absorption, and chemical compatibility, engineers can make informed decisions for successful applications.

1. Temperature Resistance

POM has a relatively low melting point, typically around 165°C. Therefore, when intending to implement POM in high-temperature applications, it is crucial to consider its thermal limitations to prevent material degradation or failure.

2. Mechanical Properties

The mechanical properties of POM, including tensile strength, flexibility, impact resistance, and fatigue resistance, should be carefully examined to ensure they meet the specific requirements of the application. Understanding these properties enables engineers to select the appropriate POM grade for desired performance.

3. Dimensional Stability

Polyoxymethylene exhibits exceptional dimensional stability, meaning it maintains tight tolerances and shape integrity when subjected to external factors such as temperature variations or mechanical stress. This property makes POM suitable for precise and intricate components, ensuring consistent performance over time.

4. Thermal Expansion

Considering the coefficient of thermal expansion (CTE) of POM is crucial to prevent dimensional variations and potential issues in applications subjected to temperature fluctuations. By selecting POM grades with predictable and controlled thermal expansion properties, engineers can mitigate the risks associated with mismatched thermal expansion coefficients in multi-material assemblies.

5. Water Absorption

POM exhibits low water absorption, making it suitable for applications where dimensional stability and moisture resistance are vital. This characteristic ensures that POM components maintain their structural integrity and performance, even in humid or wet environments.

6. Chemical Compatibility

POM material properties indicate excellent resistance to various chemicals; however, it is essential to evaluate its compatibility with specific chemicals and solvents based on the chemical resistance chart. This assessment allows engineers to select the most suitable POM grade for applications exposed to specific substances, ensuring optimal performance and longevity.

POM considerations

By considering these critical factors, engineers can confidently design polyoxymethylene applications that meet the stringent requirements of diverse industries, delivering robust, reliable, and high-performance solutions.

Concluding Remarks on Polyoxymethylene Chemical Resistance

In summary, polyoxymethylene (POM) has proven to possess exceptional chemical resistance, making it an extremely versatile material for various applications in Singapore. Its ability to withstand a wide range of chemicals, in addition to its impressive mechanical properties, dimensional stability, and low friction characteristics, establishes POM as a reliable choice for demanding environments.

However, it is vital to take into account specific factors and conduct comprehensive testing for each application to ensure optimal performance. By thoroughly understanding the chemical resistance of POM and its key properties, engineers and designers can make well-informed decisions when selecting materials for their projects.

With POM’s excellent chemical resistance, designers can confidently deploy it in industries ranging from automotive and electronics to consumer goods. Its compatibility with a vast array of chemicals, coupled with its ability to maintain stability under various conditions, makes POM an invaluable asset in diverse sectors.

In conclusion, the remarkable chemical resistance of polyoxymethylene, as well as its other beneficial properties, establishes it as a standout choice for applications in Singapore. By thoroughly comprehending the chemical compatibility of POM and its essential properties, engineers and designers can ensure the success and longevity of their projects in even the most challenging environments.


What is polyoxymethylene?

Polyoxymethylene, also known as POM or acetal, is an engineering plastic widely used in various applications due to its excellent chemical resistance.

What chemicals is polyoxymethylene resistant to?

POM shows excellent resistance to acetaldehyde, acetamide, acetone, acetyl bromide, alcohols (including amyl, benzyl, butyl, and methyl), aldehydes, aliphatic hydrocarbons, amines, and aromatic hydrocarbons.

What chemicals can polyoxymethylene have limited resistance to?

POM may have limited resistance to certain acids, bases, and solvents, including acetic acid, glacial acetic acid, and chlorinated solvents.

What are the common applications of polyoxymethylene?

Common applications of POM include gears, bearings, valves, pump components, electrical connectors, automotive parts, and consumer goods.

What are the properties of polyoxymethylene?

POM offers high strength, stiffness, dimensional stability, low friction, and excellent wear resistance.

What should be considered when using polyoxymethylene for specific applications?

Several factors should be considered, including temperature resistance, mechanical properties, dimensional stability, thermal expansion, water absorption, and chemical compatibility.

What is the melting point of polyoxymethylene?

POM has a relatively low melting point, typically around 165°C.

Is polyoxymethylene suitable for high-temperature applications?

It is important to consider the relatively low melting point of POM when using it for high-temperature applications.

In which industries is polyoxymethylene extensively used in Singapore?

POM is extensively used in industries such as automotive, electronics, and consumer goods in Singapore.

How can engineers and designers make informed decisions when selecting materials for their projects?

By understanding the chemical resistance of POM, its key properties, and conducting thorough testing for each application, engineers and designers can make informed decisions when selecting materials for their projects.

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