Technische karakteristieken
- Hoge slagvastheid, ook bij lage temperaturen
- Uitstekend thermovormbaar zonder voorverwarming
- Goed bestand tegen chemicaliën en vocht
- Geurloos en geschikt voor voedingscontact (FDA/EFSA)
- Vlamvertragende varianten beschikbaar
- Transparant met hoge lichttransmissie
- Geen spanningsscheuren bij normale verwerking
Typische toepassingen
- Displays en presentatiesystemen
- Verpakkingen voor cosmetica, voedsel en medische producten
- Medische beschermschermen en spatmaskers
- POS-materiaal en bewegwijzering
- Machineafschermingen en beschermkappen
Guideline Datasheet: PET-G (Polyethylene Terephthalate Glycol)
| Property | Test method | Unit | Guideline value |
|---|---|---|---|
| General properties | |||
| Density | ISO 1183‑1 | g/cm³ | 1.27 |
| Moisture absorption (23°C/50% RH) | ISO 62‑4 | % | 0.2 |
| Moisture absorption (saturated) | ISO 62‑1 | % | 0.6 |
| Refractive index (20 °C) | ISO 489 | – | 1.567 |
| Mechanical properties | |||
| Tensile stress at yield | ISO 527‑2/1B/50 | MPa | › 45 |
| Elongation at yield | ISO 527‑2/1B/50 | % | 4 |
| Tensile strength | ISO 527‑2/1B/50 | MPa | › 45 |
| Elongation at break | ISO 527‑2/1B/50 | % | › 35 |
| Elastic modulus | ISO 527‑2/1B/1 | MPa | 2020 |
| Limiting flexural stress | ISO 178 | MPa | ≈ 80 |
| Impact strength (Charpy, unnotched) | ISO 179/1fU | kJ/m² | no break |
| Impact strength (Charpy, notched) | ISO 179/1eA | kJ/m² | ≈ 7 |
| Izod notched | ISO 180/1A | kJ/m² | ≈ 6 |
| Thermal properties | |||
| Vicat softening temperature (B50) | ISO 306 | °C | 80 |
| Thermal conductivity | DIN 52612 | W/m·K | 0.2 |
| Linear thermal expansion coefficient | DIN 53752‑A | mm/m·K | 0.05 |
| Heat deflection temperature (1.80 MPa) | ISO 75‑2 | °C | 63 |
| Heat deflection temperature (0.45 MPa) | ISO 75‑2 | °C | 70 |
| Electrical properties | |||
| Dielectric strength | IEC 60243‑1 | kV/mm | 16.1 |
| Volume resistivity | IEC 60093 | Ω·cm | 10¹⁵ |
| Surface resistivity | IEC 60093 | Ω | 10¹⁶ |
| Dielectric constant (10³ Hz) | IEC 60250 | – | 2.6 |
| Dielectric constant (10⁶ Hz) | IEC 60250 | – | 2.4 |
| Dissipation factor (10³ Hz) | IEC 60250 | – | 0.005 |
| Dissipation factor (10⁶ Hz) | IEC 60250 | – | 0.02 |
Light Transmission
| Thickness (mm) | 0.6 | 0.75 | 1 | 1.5 | 2 | 2.5 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 15 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Transmission (%) | 90 | 90 | 90 | 90 | 89 | 89 | 88 | 88 | 87 | 86 | 85 | 84 | 80 | 80 |
Fire Rating
| Thickness (mm) | 0.6 | 0.75 | 1 | 1.5 | 2 | 2.5 | 3 | 4 |
|---|---|---|---|---|---|---|---|---|
| Clear 099 (°C) | 960 | 960 | 900 | 960 | 960 | 960 | 960 | 960 |
| Bronze (°C) | 850 | 960 | ||||||
PETG bewerkt: cases en projectvoorbeelden
Comparison Polycarbonate, Acrylic and PET-G
| Property | Acrylic (PMMA) | PET-G | Polycarbonate (PC) |
|---|---|---|---|
| Transparency / Clarity | Excellent | High | High |
| Density / Weight | Low | Low | Low |
| Tensile Strength vs Glass | 30x stronger | 150x stronger | 250x stronger |
| Weather Resistance | Excellent | Good | Good |
| Cold Bending | Limited | Medium | Good |
| Hot Bending | Good | Good | Good |
| Printability | Good | Good | Good |
| Fire Rating* (DIN 4102) | B2 (normally flammable) | B1 (hardly flammable) | B1 (hardly flammable) |
* Fire rating according to DIN 4102 (German fire safety standard):
| Class | Description |
|---|---|
| A1 | 100% non-combustible |
| A2 | 98% non-combustible |
| B1 | Hardly flammable |
| B2 | Normally flammable |
| B3 | Easily flammable |
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