PET — transparent engineering thermoplastic with good barrier properties. For beverage bottles, food packaging, film, fibres and light engineering parts.
PET (Polyethylene Terephthalate) per ISO 7792 is a semi-crystalline polyester widely used as a packaging material (PET bottles) and as an engineering thermoplastic. It offers good tensile strength, excellent dimensional stability, low water absorption and good chemical resistance. As an engineering plastic, PETG (glycol-modified PET) and crystalline CPET are used for food trays, medical packaging and precision machined parts.
| Standard Body | Designation | Country / Region | Note |
|---|---|---|---|
| ISO | PET (ISO 7792-1) | International | |
| EN | EN ISO 7792 | European Union | |
| ASTM | D4397 / D5927 (PET bottle grade) | USA | |
| Trade Names PET | Arnite (DSM) / Rynite (DuPont) / Hostaphan film (Mitsubishi) | Global | |
| Trade Names PETG | Eastman Tritan / Vivak (Sheffield Plastics) / Spectar (Eastman) | Global | Glycol-modified PET — better clarity, no stress-whitening |
| UL | 94 HB (standard PET) | USA | |
| JIS | PET (JIS K 7367) | Japan | |
| GOST | Polietilentereftalat (PET) | Russia / CIS | |
| FDA | 21 CFR 177.1630 (food contact) | USA | FDA approved for food and beverage contact |
| JUS | PL-PET | Yugoslavia / Serbia | Polyethylene terephthalate engineering plastic |
| RoHS | Compliant | EU | |
| Supply Forms | Rod, sheet (extruded) + preforms (blow moulding) + film (Mylar/Melinex) + injection moulding compound | Global | |
| Recycling code | 1 — PET (most recycled plastic globally) | Global |
| # | Standard Body | Designation | Country / Region | Note |
|---|---|---|---|---|
| 1 | ISO | PET (ISO 7792-1) | International | — |
| 2 | EN | EN ISO 7792 | European Union | — |
| 3 | ASTM | D4397 / D5927 (PET bottle grade) | USA | — |
| 4 | Trade Names PET | Arnite (DSM) / Rynite (DuPont) / Hostaphan film (Mitsubishi) | Global | — |
| 5 | Trade Names PETG | Eastman Tritan / Vivak (Sheffield Plastics) / Spectar (Eastman) | Global | Glycol-modified PET — better clarity, no stress-whitening |
| 6 | UL | 94 HB (standard PET) | USA | — |
| 7 | JIS | PET (JIS K 7367) | Japan | — |
| 8 | GOST | Polietilentereftalat (PET) | Russia / CIS | — |
| 9 | FDA | 21 CFR 177.1630 (food contact) | USA | FDA approved for food and beverage contact |
| 10 | JUS | PL-PET | Yugoslavia / Serbia | Polyethylene terephthalate engineering plastic |
| 11 | RoHS | Compliant | EU | — |
| 12 | Supply Forms | Rod, sheet (extruded) + preforms (blow moulding) + film (Mylar/Melinex) + injection moulding compound | Global | — |
| 13 | Recycling code | 1 — PET (most recycled plastic globally) | Global | — |
| Element | Symbol | Min % | Max % | Typical % |
|---|---|---|---|---|
| Carbon (terephthalate ester repeat unit) | C | — | — | 62.5000 |
| Hydrogen | H | — | — | 4.1600 |
| Oxygen (ester groups) | O | — | — | 33.3000 |
| Water absorption (equilibrium 50% RH) | H2O | — | 0.4000 | — |
| Condition | Code | Rm min MPa | Rm max MPa |
Re min MPa | Re max MPa |
A₅ min % |
Z % |
KV J |
HB min | HB max | HRC min | HRC max | E GPa |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Standard PETG (amorphous) | PETG | 45 | 60 | 45 | 55 | 50.0 | — | — | — | — | — | — | 2.2 |
| Crystalline PET (CPET) | CPET | 55 | 75 | 50 | 65 | 20.0 | — | — | — | — | — | — | 2.7 |
| PET GF30 (glass-filled) | GF30 | 110 | 140 | 95 | 120 | 3.0 | — | — | — | — | — | — | 8.0 |
| Coolant | Compressed air or dry MQL; no flood water (water can cause surface hazing in amorphous PETG) |
| Chip Formation | Good chip formation; medium-short chips; better than PA |
| Tool Material | Carbide K10 or HSS M2; sharp tools; positive rake |
| Surface Finish | Ra 0.4-1.6 um |