PET-P Sheet
Semi-crystalline PET (PET-P) is also known by the trade name Ertalyte™. It absorbs very little moisture and offers high dimensional stability, high wear resistance and good sliding properties. Suitable for close-tolerance parts.

Material and sizes
PET-P
White and black. It absorbs very little moisture and has high dimensional stability and wear resistance. With low thermal expansion and good creep resistance, it holds its dimensions in humid conditions and is therefore preferred as an alternative to POM for close-tolerance precision parts. It resists weak acids but is not suitable for parts continuously exposed to hot water above about 60 °C or to steam.
Ertalyte® is a registered trademark of Mitsubishi Chemical Advanced Materials.
- THICKNESS
- 8–100 mm · other sizes on request
- SHEET SIZE
- Sheet sizes on request
- CONTINUOUS SERVICE TEMP.
- 100 °C
- ORDERING
- Cut to size, minimum order 5 kg
For large-quantity orders, other cut sizes are possible.
Technical data sheets and material certificates are available on request.
PET-P sheet weight calculator
Calculate the weight from the size, or the number of sheets needed for a target weight. Your selections are added to the quote message automatically.
Size: 20 × 1000 × 1000 mm, quantity: 1 (theoretical ~27.80 kg)
For other plastic sizes, weight-per-metre tables and densities, see the Plastic weight calculator →
Applications
- Close-tolerance machine parts
- Food machinery parts
- Valve and pump parts
- Slide strips and wear parts
Frequently asked questions
PET-P or acetal (POM-C)?
Both are suitable for precision parts. PET-P has better wear resistance and resistance to acids, and keeps its dimensions better at higher temperatures; POM-C is tougher, easier to machine and better suited to hot water and alkalis.
Why can the invoiced weight differ from the calculated weight?
The calculator gives the theoretical weight. The actual weight varies with dimensional tolerances and cutting allowance; we invoice on the actual weight as weighed.
What information should I send for a quote?
We only need the size (thickness × width × length), quantity and delivery location. If you fill in the calculator above, these details are added to the WhatsApp message automatically.
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