ASA (Acrylonitrile-Styrene-Acrylate) vs PA66 (Nylon 66): 0% composition overlap. Significantly different materials serving different application areas.
ASA (Acrylonitrile-Styrene-Acrylate) vs PA66 (Nylon 66)
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.
PA66 (Nylon 66)
Polyamide 66 — stiffer and more heat-resistant than PA6. Higher crystallinity gives better creep resistance and ~40°C higher melting point (260°C vs 220°C). Slightly more brittle. More moisture-sensitive at saturation than PA6. Trade names include Ultramid A (BASF), Zytel 101 (DuPont), Tecamid 66 (Ensinger). Dominant in US/UK markets. Used for automotive engine components, electrical connectors, gears, cable ties, and industrial bushings.
| ASA (Acrylonitrile-Styrene-Acrylate) | PA66 (Nylon 66) | |
|---|---|---|
| Material Number | — | — |
| Category | Polymers | Polymers |
| Standard | ISO 6402 | ISO 10350 |
Chemical composition (wt%) — Pro
| Element | ASA (Acrylonitrile-Styrene-Acrylate) | PA66 (Nylon 66) | Overlap |
|---|---|---|---|
| Acrylonitrile | 20–30% | — | — |
| Styrene | 40–60% | — | — |
| Acrylate Elastomer | 15–30% | — | — |
| Hexamethylenediamine unit | — | 45–55% | — |
| Adipic Acid unit |
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Sign up free — 3 comparisons/day freeMechanical properties — Pro
| Property | ASA (Acrylonitrile-Styrene-Acrylate) | PA66 (Nylon 66) | Unit |
|---|---|---|---|
| Tensile Strength | 40–55 | 80–90 | MPa |
| Elongation | 15–35 | 15–40 | % |
| Elastic Modulus | 2200–2600 | 3–3.2 | MPa |
| Density | |||
| Yield Strength | |||
| Melting Point | |||
| Glass Transition Temp (Tg) | |||
| Water Absorption (24h) | |||
| Tensile Strength | |||
| Tensile Modulus | |||
| Elongation at Break | |||
| Charpy Impact (notched) | |||
| Density | |||
| Melting Point | |||
| Glass Transition Temp | |||
| Water Absorption (24h) | |||
| Water Absorption (saturation) |
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Sign up free — 3 comparisons/day freeCompatibility Assessment
ASA (Acrylonitrile-Styrene-Acrylate) and PA66 (Nylon 66) 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 PA66 (Nylon 66)?
ASA (Acrylonitrile-Styrene-Acrylate) and PA66 (Nylon 66) have a 0% composition overlap. They are generally not directly interchangeable.
Can I replace ASA (Acrylonitrile-Styrene-Acrylate) with PA66 (Nylon 66)?
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 PA66 (Nylon 66)?
The main differences are in the following elements: overall alloying content. ASA (Acrylonitrile-Styrene-Acrylate) is a Polymers grade, while PA66 (Nylon 66) is a Polymers grade.
Related Comparisons
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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.