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Celanex® PBT - HIGH STRENGTH AND CHEMICAL RESISTANCE WITH LOW CREEP AT HIGH TEMPERATURES
Celanex® thermoplastic polyester (PBT) is a semicrystalline structure based on polybutylene terephthalate that provides high strength, rigidity and toughness, low creep even at high temperatures and resistance to a wide range of chemicals, solvents, oils and greases.
Celanex PBT is especially suited as a sliding partner for Hostaform®/Celcon® POM. It features excellent dimensional stability, low moisture absorption and powerful insulation resistance.
Product Properties:
- Very hard, rigid and strong
- Good creep resistance
- High heat-distortion temperature, especially for glass fiber-reinforced grades
- Service temperature to 140°C
- Very good low-friction and wear-resistant properties
- High dimensional stability (low thermal expansion coefficient, low water absorption)
- Good electrical properties
- Good chemical resistance
- No environmental stress cracking
- Good weathering resistance
- Rapid crystallization and fast cycle time
- Paintable
- Flame-retardant grades available (UL 94 V-0, in some cases 5VA)
Depending on market requirements, the Celanex PBT flame-retardant system is low in migration and halogen-free.
Grades
- Basic
- Glass fiber and glass sphere reinforced
- Glass fiber reinforced with very high surface gloss
- Glass fiber/mineral reinforced
- Flame retardant
- UV stabilized
- HR grades
- Medical technology (MT®)
- Special colors for laser marking
- MetaLX™ metal effects
Processing
- Injection molding
- Extrusion
- Meltblown
- Physical foaming
- Water- and gas-injection technology (WIT/GIT)
Various grades of Celanex PBT hold regulatory approvals including VDE or UL approvals for the electrical and electronic market, and FDA approval for the nutrition and medical markets.
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