ASA (Acrylonitrile-Styrene-Acrylate) vs POM-H (Acetal Homopolymer): 0% composition overlap. Significantly different materials serving different application areas.
ASA (Acrylonitrile-Styrene-Acrylate) vs POM-H (Acetal Homopolymer)
Side-by-side chemical composition and mechanical property comparison.
Overview
ASA (Acrylonitrile-Styrene-Acrylate)
UV-resistant alternative to ABS — acrylic rubber replaces butadiene for excellent weatherability. Retains color and gloss outdoors for years without coating. Similar mechanical properties to ABS but with 10× better UV resistance. Trade names: Luran S (BASF/INEOS), Geloy (SABIC). Used for automotive exterior trim, outdoor electrical housings, garden furniture, and building cladding.
POM-H (Acetal Homopolymer)
Polyoxymethylene Homopolymer — slightly stronger and stiffer than POM-C copolymer but with centerline porosity in stock shapes and lower resistance to hot water/alkalis. Trade names include Delrin (DuPont/DuPont de Nemours) and Tenac (Asahi Kasei). Used for gears, cams, springs, clips, fuel system components, and precision-machined parts where maximum stiffness is needed.
| ASA (Acrylonitrile-Styrene-Acrylate) | POM-H (Acetal Homopolymer) | |
|---|---|---|
| Material Number | — | — |
| Category | Polymers | Polymers |
| Standard | ISO 6402 | ISO 10350 |
Chemical composition (wt%) — Pro
| Element | ASA (Acrylonitrile-Styrene-Acrylate) | POM-H (Acetal Homopolymer) | Overlap |
|---|---|---|---|
| Acrylonitrile | 20–30% | — | — |
| Styrene | 40–60% | — | — |
| Acrylate Elastomer | 15–30% | — | — |
| Polyoxymethylene (OCH2 homopolymer) | — | 99–99.9% | — |
Mechanical properties — Pro
| Property | ASA (Acrylonitrile-Styrene-Acrylate) | POM-H (Acetal Homopolymer) | Unit |
|---|---|---|---|
| Tensile Strength | 40–55 | 66–73 | MPa |
| Elongation | 15–35 | 15–25 | % |
| Elastic Modulus | 2200–2600 | 3–3.5 | MPa |
| Density | |||
| Yield Strength | |||
| Melting Point | |||
| Water Absorption (24h) | |||
| Continuous Use Temp |
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ASA (Acrylonitrile-Styrene-Acrylate) and POM-H (Acetal Homopolymer) have significantly different compositions (0% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is ASA (Acrylonitrile-Styrene-Acrylate) the same as POM-H (Acetal Homopolymer)?
ASA (Acrylonitrile-Styrene-Acrylate) and POM-H (Acetal Homopolymer) have a 0% composition overlap. They are generally not directly interchangeable.
Can I replace ASA (Acrylonitrile-Styrene-Acrylate) with POM-H (Acetal Homopolymer)?
Generally not recommended. The compositions differ significantly (0% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between ASA (Acrylonitrile-Styrene-Acrylate) and POM-H (Acetal Homopolymer)?
The main differences are in the following elements: overall alloying content. ASA (Acrylonitrile-Styrene-Acrylate) is a Polymers grade, while POM-H (Acetal Homopolymer) is a Polymers grade.
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Data provided for reference only. Always verify against the applicable specification for critical applications.
All data is for reference only. Equivalents indicate similarity, not identity. Always verify against the applicable specification for safety-critical applications. materialref.com accepts no liability for decisions based on this data.