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Distributor of Celazole Plastics in Sheet, Rod, and Bar Contact Us for a Quote

Celazole Plastic Shapes and Sizes:

  • Celazole Sheet
  • Celazole Rods
  • Celazole Bar

Typical Celazole Applications:

  • Highest heat resistance
  • Excellent thermal insulator
  • Extremely hard and can be challenging to fabricate

Celazole Machining Services (available though our plastic manufacturing division)

Celazole Agency Approval Data
COLOR
Celazole® PBI Plastics
Black
Celazole® PBI Properties
Celazole Property ASTM or UL Test Celazole® PBI
Water Absorption (24hrs) (%) D-570 0.40
Density (lb/in³) D-792 0.047
(g/cm³) 1.30
IZOD Notched Impact (ft-lb/in) D-256 0.5
Tensile Strength (psi) D-638 23,000
Tensile Modulus (psi) D-638 850,000
Tensile Elongation at Break (%) D-638 3.0
Hardness (Rockwell R) D-785 E105
Compressive Strength (psi) D-695 50,000
Compressive Modulus (psi) D-695 900,000
Flexural Strength (psi) D-790 32,000
Flexural Modulus (psi) D-790 950,000
Thermal Conductivity (BTU-in/ft²-hr-°F) C-177 2.8
(x 104 cal/cm-sec-°C) 9.64
Heat Deflection Temp at 264 psi (°F / °C) D-648 800 / 427
Coefficient of Linear Thermal Expansion (x 10-5 in./in./°F) D-696 1.3
Flammability Rating   UL-94 V-0
Glass Transition Temperature (°F / °C) D-3418 750 / 399
Max Operating Temp (°F / °C) - 650 / 343
DielectricStrength, 1/8" thick (V/mil) D-149 550
DielectricConstant at 1 MHz   D-150 4.20
Dissipation Factor at 1 MHz   D-150 -
Volume Resistivity at 50% RH (ohm-cm) D-257 >1013
Physical Mechanical Thermal Electrical
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Celazole® PBI is the highest performance engineering thermoplastic available today. It offers the highest heat resistance and mechanical property retention over 400°F of any unfilled plastic. It has better wear resistance and load carrying capabilities at extreme temperatures than any other reinforced or unreinforced engineering plastic. As an unreinforced material, Celazole® PBI is very "clear" in terms of ionic impurity and it does not outgas (except water). These characteristics make this material very attractive to semiconductor and for vacuum chamber applications. Celazole® PBI has excellent ultrasonic transparency which makes it an ideal choice for parts such as probe tip lenses in ultrasonic measuring equipment.

Celazole® is also an excellent thermal insulator. Other plastics in melt do not stick to PBI. These characteristics make it ideal for contact seals and insulator bushings in plastic production and molding equipment.

Engineering Note:

Celazole® PBI is extremely hard and can be challenging to fabricate. Polycrystalline diamond tools are recommended when fabricating production quantities. Celazole® PBI tends to be notch sensitive, radius all corners and edges chambered to maximize part toughness. High tolerance fabricated components should be stored in sealed containers (usually polybags) to avoid dimensional change 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.

Back to Guide Quadrant EPP: Celazole® PBI

 

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