ASA (Acrylonitrile-Styrene-Acrylate) vs Silicone Rubber (VMQ/HTV): 0% composition overlap. Significantly different materials serving different application areas.
ASA (Acrylonitrile-Styrene-Acrylate) vs Silicone Rubber (VMQ/HTV)
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.
Silicone Rubber (VMQ/HTV)
Silicone rubber (VMQ = Vinyl Methyl Polysiloxane) — THE extreme-temperature elastomer. Usable from -60°C to +230°C continuous (short-term +300°C). Excellent UV/ozone/weathering resistance. Biocompatible (FDA, USP Class VI). Low compression set. Electrically insulating. Lower tensile/tear strength than organic rubbers. Used for seals/gaskets, medical tubing/implants, food-grade components, baby products, automotive ignition boots, and LED/lighting encapsulation.
| ASA (Acrylonitrile-Styrene-Acrylate) | Silicone Rubber (VMQ/HTV) | |
|---|---|---|
| Material Number | — | — |
| Category | Polymers | Polymers |
| Standard | ISO 6402 | ISO 37 |
Chemical composition (wt%) — Pro
| Element | ASA (Acrylonitrile-Styrene-Acrylate) | Silicone Rubber (VMQ/HTV) | Overlap |
|---|---|---|---|
| Acrylonitrile | 20–30% | — | — |
| Styrene | 40–60% | — | — |
| Acrylate Elastomer | 15–30% | — | — |
| Polysiloxane Base (Methyl/Vinyl) | — | 60–80% | — |
| Silica Filler (Reinforcement) |
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Sign up free — 3 comparisons/day freeMechanical properties — Pro
| Property | ASA (Acrylonitrile-Styrene-Acrylate) | Silicone Rubber (VMQ/HTV) | Unit |
|---|---|---|---|
| Tensile Strength | 40–55 | 6–12 | MPa |
| Elongation | 15–35 | 200–600 | % |
| Elastic Modulus | 2200–2600 | — | MPa |
| Density | |||
| hardness_shore_a | |||
| continuous_service_temp |
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Sign up free — 3 comparisons/day freeCompatibility Assessment
ASA (Acrylonitrile-Styrene-Acrylate) and Silicone Rubber (VMQ/HTV) 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 Silicone Rubber (VMQ/HTV)?
ASA (Acrylonitrile-Styrene-Acrylate) and Silicone Rubber (VMQ/HTV) have a 0% composition overlap. They are generally not directly interchangeable.
Can I replace ASA (Acrylonitrile-Styrene-Acrylate) with Silicone Rubber (VMQ/HTV)?
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 Silicone Rubber (VMQ/HTV)?
The main differences are in the following elements: overall alloying content. ASA (Acrylonitrile-Styrene-Acrylate) is a Polymers grade, while Silicone Rubber (VMQ/HTV) is a Polymers grade.
View full data for each material:
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.