PEEK vs PVDF — High-Temp All-Rounder vs Chemical Specialist
Comparison Overview
PEEK vs PVDF — High-Temp All-Rounder vs Chemical Specialist. Choose PEEK when high temperature resistance (>260…
PEEK — Polyetheretherketone
Properties
| Property | Value |
|---|---|
| Service Temp. | 260°C |
| Density | 1.32 g/cm³ |
| Tensile Strength | 100 MPa |
| Flexural Modulus | 4,000 MPa |
| Hardness | Rockwell M99 |
| Flammability | V-0 |
Advantages
- Best all-round balanced performance
- Excellent chemical resistance — nearly no solvent attack
- Excellent biocompatibility (ISO 10993)
- Good processability
- Outstanding wear and fatigue resistance
Applications
AerospaceMedical ImplantsSemiconductorAutomotiveFood Processing
Price Level
High
PVDF — Polyvinylidene Fluoride
Properties
| Property | Value |
|---|---|
| Service Temp. | 150°C |
| Density | 1.78 g/cm³ |
| Tensile Strength | 55 MPa |
| Flexural Modulus | 2,100 MPa |
| Hardness | Shore D80 |
| Flammability | V-0 |
Advantages
- Outstanding chemical resistance
- High purity — minimal extractables
- Excellent UV stability and weather resistance
- Unique piezoelectric properties
- Good flame retardance (V-0)
Applications
Chemical ProcessingSemiconductorWater FiltrationBatteryWire & Cable
Price Level
Med-High
Selection Guidance
✓ Choose PEEK
Choose PEEK when high temperature resistance (>260°C), high mechanical load, or excellent wear resistance is needed.
✓ Choose PVDF
Choose PVDF when facing highly corrosive chemicals, needing high-purity materials, or working in ultrapure water/chemical processing.
Price Reference
PEEK: High
PVDF: Med-High
PEEK is typically 30-60% more expensive than PVDF.
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