We've all been there: how do you know what material to choose when your project requires something special?

Have you ever considered the differences between ABS, POM, and Acetal?

In this article, we'll dive deep into a comparative analysis of the properties and applications for each of these materials.

We'll cover mechanical properties, temperature resistance, chemical resistance, electrical properties, cost comparison and applications to help you make an informed decision about which material is best suited for your project.

So let's get started!

Overview of ABS, POM, and Acetal

Overview of ABS, POM, and Acetal

You're likely familiar with some of the similarities between these materials, but you might be surprised at the differences when you take a closer look.

ABS (Acrylonitrile Butadiene Styrene), POM (Polyoxymethylene) and Acetal (Polyoxymethylene Copolymer) are all thermoplastics, meaning they can be melted and reshaped many times. They also have good strength and stiffness as well as superior resistance to chemicals and wear.

However, each material has its own unique characteristics that make it suitable for different applications. For example, ABS is often used in car parts because it's lightweight yet strong enough to withstand impact from bumps and potholes.

POM is known for its hardness and low friction coefficient making it ideal for gears and bearings while acetal offers excellent fatigue properties making it the perfect choice for highly cyclic applications such as window hinges or door locks.

Mechanical Properties

We're going to take a look at the mechanical properties of ABS, POM, and Acetal.

We'll focus on the following aspects:

  • Tensile strength
  • Flexural strength
  • Impact strength
  • Hardness

All of these aspects are important when considering which material to choose for an application.

Tensile Strength

Tensile Strength of ABS, POM, and Acetal

You'll find that the tensile strength of these materials is like a tug-of-war, with each one pulling hard to get ahead. ABS has a higher modulus of elasticity than POM or Delrin/Acetal, which makes it the strongest and most resilient material when under tension. ABS is able to resist breaking by stretching rather than snapping when pulled on.

On the other hand, POM and Delrin/Acetal are both less ductile materials but have their own advantages in terms of tensile strength; they're much stiffer than ABS and can be used for more precise applications where tight tolerances need to be maintained. Moreover, they also show better fatigue resistance due to their higher wear resistance compared to ABS.

All three materials offer great tensile strength overall; however, depending on your application's needs, one may be more suitable than another.

Flexural Strength

When it comes to flexural strength, ABS stands out for its impressive ability to bend before breaking, making it suitable for more demanding applications. ABS has a flexural strength of 2400 psi, which is significantly higher than POM (1050-1300 psi) and Delrin (1250 psi).

Acetal falls somewhere in the middle with values ranging from 2500-3000 psi. This makes ABS an ideal choice if your application requires a plastic that can withstand high levels of stress without snapping or shattering.

The increased flexibility provided by ABS makes it especially well-suited in applications where other plastics are likely to crack or break under repeated stress. It's also highly resistant to extreme temperature changes and chemical corrosion, so it won't degrade over time like some other plastics might.

So, whether you need a strong material for manufacturing parts or something flexible enough to move around corners without breaking, ABS should be at the top of your list!

Impact Strength

With its impressive ability to withstand impacts, ABS stands out from the crowd like a rock in a river. When compared to other materials such as Delrin, Acetal, and POM, ABS is renowned for its strength when it comes to impact-related applications. Here are some of the reasons why:

  1. ABS has excellent shock absorption capabilities due to its low shear modulus and resulting flexibility.
  2. Its high tensile strength makes it able to absorb large amounts of energy before failure.
  3. It also exhibits excellent resistance to fatigue cracking even after prolonged exposure to high temperatures or moisture levels.
  4. Finally, ABS offers superior wear resistance which helps extend the lifespan of the product being manufactured with it.

ABS's versatility and durability make it an ideal choice for products that will be exposed to harsh conditions or frequent impacts and shocks over long periods of time. This makes it invaluable in industries such as automotive, aerospace engineering, toy manufacturing, and more!



We stand in awe of ABS's hardness. It stands out like a diamond from the crowd, making it perfect for applications requiring durability and strength.

Its ability to withstand wear and tear over long periods of time is why many choose ABS for their projects.

The other materials don't compare when it comes to hardness either. Delrin has some good qualities, but it's not resistant to wear and tear. While Acetal is slightly tougher than Delrin, neither are as hard as ABS.

This makes ABS the material of choice when it comes to demanding applications that require superior strength and durability. It gives you the freedom to take on your project without worrying about whether or not your material can keep up!

Temperature Resistance

Temperature resistance is an important factor to consider when looking into different materials. Find out more about how ABS, POM, Delrin, and Acetal stack up!

All four materials have great temperature resistance qualities. ABS can withstand temperatures up to 85°C (185˚F). POM has a higher melting point of 175°C (347˚F). Delrin has amazing temperature resistance with a melting point of 221°C (430˚F). Acetal has the highest temperature capability among the four with its melting point at 288°C (550˚F).

With such great temperature-resistant properties, these materials are sure to get any job done without worrying about failure or deformation due to extreme temperatures! Investing in any one of them will ensure that your projects run efficiently and smoothly, regardless of their environment! Get creative and explore all your options for building incredible projects today!

Chemical Resistance

Investigating how your materials react to chemicals is essential for any project. You'll be pleased to know that ABS, POM, Delrin, and Acetal all have great chemical resistance properties. All of these materials are resistant to a wide range of acids, alkalis, oils, and greases. They can even withstand exposure to organic solvents. This makes them ideal for use in many industries such as engineering, construction, automotive manufacturing, and medical applications. They're also suitable for use in harsh environments with fluctuating temperatures or exposure to corrosive substances.

Furthermore, they can be processed using standard machining techniques which makes them easy to work with. With their excellent chemical resistance capabilities combined with their ease of processing, it's no wonder these materials are so widely used!

Electrical Properties

You'll be glad to know that these materials also offer excellent electrical properties, making them suitable for a wide variety of applications. ABS is an insulator with low dielectric constant and high volume resistivity, while both Delrin and acetal are good electrical insulators with low dissipation factors. This makes all three materials ideal for use in electronics and components requiring insulation from current or voltage.

Moreover, their ability to perform well under different temperatures and conditions makes them even more attractive as options for electrical applications. The durability of ABS, Delrin, and Acetal is another great advantage as it allows the material to last longer when exposed to electricity or other environmental factors. Additionally, they can be machined easily into the desired shape which further increases their suitability in electrical projects.

All three materials also have superior flame resistance compared to other plastics used in electrical applications. This means they won't catch fire or melt easily when exposed to heat or electricity. This makes these materials extremely safe for use in any application involving electricity!

Cost Comparison

Now that we've explored the electrical properties of ABS, POM/Delrin, and Acetal plastics, let's take a look at cost. Cost is an important factor for many applications - it influences buying decisions by consumers and businesses alike.

So how do these three plastics compare in terms of cost?

Let's start with ABS; it's relatively inexpensive compared to other thermoplastics. It is widely available and mass-produced in various forms which keeps its price down.

POM/Delrin can be more expensive than ABS and Acetal but there may be some variation depending on where you buy from and what type of plastic you need.

Finally, Acetal is typically the most expensive among the three but its exceptional mechanical strength makes it worth the extra expense for certain applications.



You'll want to consider the applications of ABS, POM/Delrin, and Acetal plastics when deciding which plastic is best for your project.

ABS has a wide range of uses in both consumer and industrial products. Its low cost and easy machinability make it an ideal choice for mass production items such as toys, appliances, electronic enclosures, automotive parts, protective headgear and much more.

On the other hand, POM/Delrin is used primarily for bearing components in machines due to its low friction characteristics and strength. It has also been employed to produce gears for various mechanical operations, as well as specialty fasteners, due to its resistance to deformation under stress or load.

Lastly, Acetal plastic can be found in a variety of applications including medical devices, food contact materials, plumbing fixtures and automotive components due to its combination of properties such as hardness at elevated temperatures, coupled with excellent chemical resistance.

Ultimately, each plastic offers unique benefits that can fit different needs depending on your particular application requirements - so make sure you weigh all options before making a decision!

Choosing the Right Material for Your Project

When it comes to selecting the right material for a project, it's important to consider all factors and weigh the advantages and disadvantages of each option before making a decision. ABS, POM/Delrin, and Acetal are three popular materials that can be used in many applications.

Here are four key points to consider when choosing between them:

  1. Cost: ABS is usually the most affordable option, while POM/Delrin and Acetal tend to be more expensive.
  2. Strength: POM/Delrin is generally stronger than ABS or Acetal, but all three materials offer good strength for their respective costs.
  3. Chemical Resistance: Acetal offers superior chemical resistance compared to ABS or POM/Delrin.
  4. Temperature Resistance: All three materials have good temperature resistance properties, but POM/Delron has the highest temperature rating of the three options.

Ultimately, there is no one-size-fits-all solution when it comes to selecting a material for your project; you'll need to carefully evaluate your needs and budget before making a decision about which material will work best for you! With careful consideration of these four key points, you can make an informed choice that will help ensure your project's success!


We've taken a deep dive into the various properties and applications of ABS, POM, and Acetal. After comparing mechanical, temperature, chemical, and electrical properties as well as cost comparisons, we can confidently say that each of these materials has its own strengths and weaknesses.

Whether it's for an engineering project or simple everyday use, there isn't a one-size-fits-all solution - the choice depends on individual needs. What's more surprising is how coincidentally these materials fit specific purposes. It's almost as if they were made for certain tasks!

Whatever your project may be, you're sure to find the perfect material for it among these three options.