CELAZOLE® U-SERIES

HEAT RESISTANT POLYMER

Superior polymer strength with thermal stability

Celazole® U-Series products are used in some of the harshest environments — ranging from oil fields to aerospace to semiconductor applications. Parts made from Celazole® U-Series polymer perform well when exposed to conditions too severe for most plastics, and outperform other materials like polyimide, polyamideimide and polyetheretherketone in many extreme environments.

Celazole® PBI (polybenzimidazole) is a unique and highly stable linear hetrocyclic polymer. PBI is characterized by high strength; it exhibits excellent thermal stability, is hydrolytically stable after exposure to high pressure steam or water, is broadly resistant to hydrocarbons, alcohols, weak acids, weak bases, hydrogen sulfide, chlorinated solvents, oils, heat transfer fluids and many other organic chemicals.

HIGH TEMPERATURE PERFORMANCE

Celazole® PBI has a glass transition temperature of 800°F

HIGH STRENGTH

Highest compressive strength of any unfilled resin on the planet

CHEMICAL RESISTANCE

100% tensile strength after being submerged in motor oil at 200°F for 30 days

Grades & Properties

U-Series

U-60

Celazole® U-60 is an unfilled PBI polymer suitable for compression molding. U-60 is commonly molded and machined into precision parts for industrial, chemical and petrochemical industries; aerospace; glass making; and liquid crystal display (LCD) panel manufacture.

U-60 PROPERTIES ASTM METHOD ENGLISH VALUE METRIC VALUE
COMPRESSIVE STRENGTH (YIELD) D-695 57 kpsi 390 MPa
• MODULUS 850 kpsi 5,900 MPa
HEAT DEFLECTION TEMP. (264 psi; 1.8 MPa) D-648 815°F 435°C
GLASS TRANSITION DMA 800°F 427°C
CLTE 75-300°F (25-150°C) TMA 13 x 10-6 in/in°F 23 µm/m°C
THERMAL CONDUCTIVITY 77°F (25°C) 2.8 Btu-in/hr-ft2°F 0.41 W/m°C
DIELECTRIC STRENGTH D-149 580 V/mil 23 KV/mm
VOLUME RESISTIVITY D-257 2 x 1015 ohm-cm 2 x 1015 ohm-cm
ARC RESISTANCE D-495 185 sec. 185 sec.
COEF. OF FRICTION, STATIC VS STEEL 0.15 0.15

U-60 SD

Celazole® U-60SD is a high purity/ultra-low metal Semiconductor grade PBI thermoplastic recommended for use in Dry Etch Chambers and Sputtering Systems, Chemical Vapor Deposition (CVD) and Physical Vapor Deposition (PVD). See markets section for more information.

U-60 SD PROPERTIES ASTM METHOD ENGLISH VALUE METRIC VALUE
FLEXURAL STRENGTH D-790 32 kpsi 220 MPa
• MODULUS 950 kpsi 6,500 MPa
COMPRESSIVE STRENGTH (YIELD) D-695 57 kpsi 390 MPa
• MODULUS 850 kpsi 5,900 MPa
HEAT DEFLECTION TEMP. (264 psi; 1.8 MPa) D-648 815°F 435°C
GLASS TRANSITION DMA 800°F 427°C
CLTE 75-300°F (25-150°C) TMA 13 x 10-6 in/in°F 23 µm/m°C
VOLUME RESISTIVITY D-257 2 x 1015 ohm-cm 2 x 1015 ohm-cm
METAL CONTENT – TYPICAL MAXIMUM (ppm)
• Fe, Ni, Cr, Cu (each) ICP 1 1

U-60 ESD

Celazole® U-60 ESD is an electro-static dissipative (ESD) variant of U-60 available as a stock shape or part. U-60 ESD incorporates carbon fiber to increase the conductivity of the finished part and is often used where static discharge is a concern.

U-60 ESD E8 PROPERTIES ASTM METHOD ENGLISH VALUE METRIC VALUE
TENSILE STRENGTH (BREAK) D-638 26 kpsi 180 MPa
• MODULUS 1,100 kpsi 7,600 MPa
• ELONGATION (BREAK) 2.5% 2.5%
FLEXURAL STRENGTH (YIELD) D-790 35 kpsi 240 MPa
• MODULUS 1,300 kpsi 9,000 MPa
COMPRESSIVE STRENGTH D-695 60 kpsi 410 MPa
GLASS TRANSITION DMA 800°F 427°C
CLTE 75-300°F (25-150°C) D-696 11 x 10-6 in/in°F 20 µm/m°C
SURFACE RESISTIVITY D-257 106 – 109 ohm/sq 106 – 109 ohm/sq
CARBON FIBER CONTENT (NOMINAL) 10% 10%
U-60 ESD E5 PROPERTIES ASTM METHOD ENGLISH VALUE METRIC VALUE
TENSILE STRENGTH (BREAK) D-638 29 kpsi 200 MPa
• MODULUS 1,300 kpsi 9,000 MPa
• ELONGATION (BREAK) 2.5% 2.5%
FLEXURAL STRENGTH (YIELD) D-790 37 kpsi 260 MPa
• MODULUS 1,400 kpsi 9,700 MPa
COMPRESSIVE STRENGTH D-695 62 kpsi 430 MPa
GLASS TRANSITION DMA 800°F 427°C
CLTE 75-300°F (25-150°C) D-696 9 x 10-6 in/in°F 16 µm/m°C
SURFACE RESISTIVITY D-257 104 – 106 ohm/sq 104 – 106 ohm/sq
CARBON FIBER CONTENT (NOMINAL) 15% 15%

U-60 CF

U-60 CF is an ultra-high strength carbon fiber reinforced compression molded PBI variant available as a stock shape.  25% CF reinforced PBI has 32 kpsi tensile strength, 42 kpsi flexural strength, and 65 kpsi compressive strength.

U-60 CF PROPERTIES ASTM METHOD ENGLISH VALUE METRIC VALUE
TENSILE STRENGTH (BREAK) D-638 32 kpsi 220 MPa
• MODULUS 1,740 kpsi 12,000 MPa
• ELONGATION (BREAK) 2.5% 2.5%
FLEXURAL STRENGTH (YIELD) D-790 42 kpsi 290 MPa
• MODULUS 1,885 kpsi 13,000 MPa
COMPRESSIVE STRENGTH D-695 65 kpsi 450 MPa
• MODULUS 1,595 kpsi 11,000 MPa
GLASS TRANSITION DMA 800°F 427°C
CLTE 75-300°F (25-150°C) TMA 6.7 x 10-6 in/in°F 12 µm/m°C
• 390-570°F (200-300°C) TMA 10 x 10-6 in/in°F 18 µm/m°C
SURFACE RESISTIVITY D-257 101 – 103 ohm/sq 101 – 103 ohm/sq
CARBON FIBER CONTENT (NOMINAL) 25% 25%

CELAZOLE® U-SERIES PROCESSING: COMPRESSION MOLDING

Celazole® U-60 is an unfilled PBI polymer and comes in fine powder form that is suitable for compression molding to achieve higher strength.

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