PC/ABS (Blend) vs PET (Polyester): 0% composition overlap. Significantly different materials serving different application areas.
PC/ABS (Blend) vs PET (Polyester)
Side-by-side chemical composition and mechanical property comparison.
Overview
PC/ABS (Blend)
Polycarbonate + ABS blend — one of the most widely used industrial thermoplastic alloys. Combines PC impact strength and heat resistance with ABS processability and lower cost. Better chemical resistance than pure PC. Properties tunable by PC/ABS ratio. Trade names include Bayblend (Covestro), Cycoloy (SABIC), Pulse (Techpolymers). Used for automotive dashboards, laptop/phone housings, power tool casings, and 3D printing (FDM filament).
PET (Polyester)
Polyethylene Terephthalate (semi-crystalline stock shape) — combines the stiffness of POM with the wear resistance of PA, without centerline porosity or moisture sensitivity. Excellent dimensional stability, low friction, very low water absorption (~0.1%). Better creep resistance than POM or PA. Widely known from bottles/packaging, but engineering PET-P is semi-crystalline and much stiffer. Trade names include Ertalyte (MCAM), Arnite (DSM), Rynite (DuPont, GF grades). Used for precision bearings in water, gears, slide elements, pump parts, and electrical insulators.
| PC/ABS (Blend) | PET (Polyester) | |
|---|---|---|
| Material Number | — | — |
| Category | Polymers | Polymers |
| Standard | ISO 10350 | ISO 10350 |
Chemical composition (wt%) — Pro
| Element | PC/ABS (Blend) | PET (Polyester) | Overlap |
|---|---|---|---|
| Polycarbonate (PC) | 50–75% | — | — |
| ABS Component | 25–50% | — | — |
| Base Polymer (Polyethylene Terephthalate) | — | 99–99.9% | — |
Mechanical properties — Pro
| Property | PC/ABS (Blend) | PET (Polyester) | Unit |
|---|---|---|---|
| Tensile Strength | 45–60 | 55–80 | MPa |
| Yield Strength | 45–55 | 50–60 | MPa |
| Elongation | 50–120 | 30–80 | % |
| Elastic Modulus | |||
| Density | |||
| Glass Transition Temp (Tg) | |||
| Water Absorption (24h) | |||
| Melting Point |
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Sign up free — 3 comparisons/day freeCompatibility Assessment
PC/ABS (Blend) and PET (Polyester) 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 PC/ABS (Blend) the same as PET (Polyester)?
PC/ABS (Blend) and PET (Polyester) have a 0% composition overlap. They are generally not directly interchangeable.
Can I replace PC/ABS (Blend) with PET (Polyester)?
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 PC/ABS (Blend) and PET (Polyester)?
The main differences are in the following elements: overall alloying content. PC/ABS (Blend) is a Polymers grade, while PET (Polyester) 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.