|Celazole PBI, Duratron PBI|
|Sheets, Rods, Tubes|
Duratron PBI (CU60): Sheets, Rods & Tubes
Duratron PBI (previously known as Celazole PBI) is a very appealing material to high-tech industries such as semiconductor, aircraft and aerospace due to its unique property profile.
Duratron PBI has an extremely high maximum allowable service temperature in air (310°C continuously, 500°C for short periods) as well as excellent retention of mechanical strength, stiffness and creep resistance, extremely low coefficient of linear thermal expansion up to 250°C, excellent wear and frictional behaviour, inherent low flammability, good electrical insulating and dielectric properties, low outgassing in vacuum, high purity in terms of ionic contamination and excellent resistance against high energy radiation (gamma and X-rays).
Duratron PBI offers the highest temperature resistance and best mechanical property retention of all unfilled thermoplastics, meaning it will bring the ultimate solution where no other plastic material can.
Duratron PBI (Celazole PBI) Characteristics
- Extremely high maximum allowable service temperature in air (310°C continuously, going up to 500°C for short periods of time)
- Excellent retention of mechanical strength, stiffness and creep resistance over a wide range of temperatures
- Extremely low coefficient of linear thermal expansion up to 250°C
- Excellent wear and frictional behaviour
- Inherent low flammability
- Good electrical insulating and dielectric properties
- Low out gassing in vacuum (dry material)
- High purity level in terms of ionic contamination
- Excellent resistance against high energy radiation (gamma & X-rays)
Duratron PBI (Celazole PBI) Technical Notes
Duratron PBI is extremely hard and can be challenging to fabricate. Polycrystalline diamond tools are recommended when fabricating production quantities. Duratron tends to be notch sensitive. All corners should be radiused (0.040" min.) and edges chamfered to maximise part toughness.
High tolerance fabricated components should be stored in sealed containers (usually poly bags with desiccant) to avoid dimensional changes due to moisture absorption. Components rapidly exposed to temperatures above 400°F (205°C) should be "dried" prior to use or kept dry to avoid deformation from thermal shock.
Duratron PBI (Celazole PBI) Applications
High Heat Insulator Bushings
Bushings used in hot runner plastic injection moulds made of Duratron CU60 PBI allow the plastic being moulded to remain in melt as the part 'freezes' int he cool mould. Bushings last longer and ease clean up since hot molten plastics do not stick to Duratron CU60 PBI. (Prior materials: Vespel, Ceramic).
For an extra margin of safety, an aircraft engine manufacturer replaced connectors exposed to temperatures over 205°C (400°F) with Duratron CU60 PBI. (Prior material: Vespel PI).
Ball Valve Seats
Seats manufactured from Duratron CU60 PBI excel in high temperature fluid handling service. (Prior material: Metal).
Parts machined from Duratron CU60 PBI for gas plasma etching equipment last longer than polyimide parts due to reduced high energy erosion rates. Because they need replacement less often, valuable production 'uptime' is gained. (Prior material: Vespel PI).
Duratron PBI (Celazole PBI) Availability
|Rod thickness||Plate thickness||Tube O.D. thickness|
|Celazole PBI||9.53 - 101.60mm||12.70 - 38.10mm||42.86 - 138.11mm|
Phone 0191 258 0777 to buy
We carry an extensive range of stock to accommodate the diverse market for semi-finished plastic materials, offering custom sizes on all general plastics. Our professional cutting service will ensure quality finishes and rapid turnaround at all times.
With over 20 years of expertise in the fabrication sector, our commitment to service & quality, along with unrivalled product knowledge enables us to guide you in all aspects of plastic material selection, from component design through to production.
Our plastic design team are capable of creating a range of specialist bespoke products, from initial prototypes and one offs to full production runs. The capabilities and capacity available allows us to offer an extensive specialist service.