PPO Polyphenylene Oxide
PPO (Polyphenylene Oxide) or PPE (Polyphenylene Ether) is a high-temperature thermoplastic with unusually low moisture absorption. This enables excellent electrical insulation properties under various humidity and temperature conditions. Resistant to chemical attack from water, salt solutions, acids, and bases.
Technical Specifications
Catalog reference values. Confirm the grade, test method, and operating conditions against the supplier datasheet before specifying the material.
Features
- Very low moisture absorption
- Excellent dielectric properties
- High strength and rigidity
- Good dimensional stability
- Thermoformable
Applications
Available Forms & Sizes
| Form | Dimensions | Color |
|---|---|---|
| Round rod | Ø10–150 mm × 1000 mm | Natural (amber) |
| Plate | 610 × 1220 mm, thickness 6–50 mm | Natural (amber) |
Processing & Machining Notes
The catalog describes carbide machining of PPO. It notes that some grades, especially PS-modified grades, can be sensitive to aromatic solvents and ketones.
General catalog guidance. Cutting, cooling, and heat-treatment parameters need validation for the specific grade and part.
Standards and documentation to confirm
These catalog references do not certify every grade or batch. Request the supplied grade’s document and application scope, especially for food contact, medical use, or ESD protection.
View supporting documentsQuestions about this material
What is PPO and what is it used for?
High-temperature thermoplastic with excellent electrical insulation properties and low moisture absorption.
What continuous service temperature does the catalog list for PPO?
The catalog lists 120 °C for continuous service of PPO. This is distinct from melting temperature; confirm the grade’s limit and operating conditions with the supplier.
What industries use PPO?
PPO is used in: Mechanical engineering, Food processing, Conveyor belts, Automotive parts.
How do you machine PPO?
The catalog describes carbide machining of PPO. It notes that some grades, especially PS-modified grades, can be sensitive to aromatic solvents and ketones.
What documentation should I confirm for PPO?
The catalog references: FDA (food-contact grade), NSF/ANSI 51, UL 94 V-1, RoHS. Request documentation for the supplied grade and batch, and confirm its scope before specifying the material.
What forms and sizes is PPO available in?
PPO is available in: Round rod, Plate. Custom dimensions available on request.
What is the density of PPO?
The density of PPO is 1.06 g/cm³. This value is important for calculating machined part weight.
