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Plastics & Elastomers
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Plastics & Elastomers
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Ultradur® B 6550 LN

Technical Datasheet | Supplied by BASF
Ultradur® B 6550 LN is an unreinforced, high viscosity, semi-crystalline, saturated, thermoplastic polyester derived from polybutylene terephthalate (PBT). Exhibits toughness, high rigidity & strength, good dimensional stability under heat, good impact resistance, very high resistance to wear, thermostability, sliding friction properties, good insulation properties, good impact strength, low water absorption, good resistance to chemicals & weathering, and excellent heat ageing behavior. Can be processed using extrusion. Recommended for the production of semi-finished products, profile and hollow rods. It complies with the EU Directive 2006/122/EC (PFOA), EU Directive 2011/65/EU (RoHS) and EC Regulation 1907/2006 (REACH).
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Product Type
Polyester > PBT
Appearance
Natural
Product Status
COMMERCIAL

Ultradur® B 6550 LN Properties

Physical Properties

Value & Unit
Test Condition
Test Method
Viscosity number
160 cm³/g
(23°C)
ISO 1628, ISO 1157, ISO 307
Moisture Absorption at Equilibrium
0.25 %
(At 23°C, 50% RH)
ISO 62
Water Absorption at Saturation
0.4 %
(At 23°C)
ISO 62

Ultradur® B 6550 LN Processing Guidelines

Injection Molding Properties

Value & Unit
Test Condition
Test Method
Suggested Max Moisture
0.04 %
Drying Temperature
80 - 120 °C
Mold shrinkage, free, longitudinal (plate with film gate 150*150*3 mm³), 23°C
1.9 %
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