Product Information
Mar 2018
Ultradur® B 4406 G4 BK7110
PBT (Polybutylene Terephthalate)

Product Description
Ultradur B 4406 G4 BK7110 is an injection molding grade with 20 % glass fibers, pigmented black, for parts requiring enhanced fire resistance (eg relay housings, plug-and-socket connectors, switches, lighting components).

Typical applications include relay housings, plug-and-socket connectors, switches, and lighting components.

PHYSICAL ISO Test Method Property Value
Density, g/cm³ 1183 1.55
Viscosity Number, cm³/g 1628 116
Moisture, % 62  
    (50% RH) 0.2
    (Saturation) 0.4
MECHANICAL ISO Test Method Property Value
Tensile Modulus, MPa 527  
    23C 8,500
Tensile stress at break, MPa 527  
    23C 130
Tensile strain at break, % 527  
    23C 2.4
IMPACT ISO Test Method Property Value
Charpy Notched, kJ/m2 179  
    23C 9
THERMAL ISO Test Method Property Value
Melting Point, C 3146 223
HDT A, C 75 217

Although all statements and information in this publication are believed to be accurate and reliable, they are presented gratis and for guidance only, and risks and liability for results obtained by use of the products or application of the suggestions described are assumed by the user. NO WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE MADE REGARDING PRODUCTS DESCRIBED OR DESIGNS, DATA OR INFORMATION SET FORTH. Statements or suggestions concerning possible use of the products are made without representation or warranty that any such use is free of patent infringement and are not recommendations to infringe any patent. The user should not assume that toxicity data and safety measures are indicated or that other measures may not be required.

  BASF Corporation
Engineering Plastics
1609 Biddle Avenue
Wyandotte, MI 48192
General Information: 800-BC-RESIN
Technical Assistance: 800-527-TECH (734-324-5150)
Web address: