Beki-Shield® BU

Beki-shield BU
Beki-Shield® BU is a stainless steel filler material used in plastic compounds to provide electrical conductive properties. It comes in a continuous form supplied on bundles.  Our Beki-Shield® BU product can be used to create a master-batch which can be used to be integrated into a polymer matrix by both injection molding and by compounding techniques.

Technical specifications

The following specifications describe the product in general form only. Specific technical details are provided with each individual order.


BU ..... / .....  .....  ..... 
  a b c d


A Fiber diameter 8µm or 11µm
B Number of filaments 3000 – 20000 (multiples of 1000)
C Level of crimp No crimp (NCR) / Low crimp (LCR) / Crimp (CR) 
D Tube type B60 = Plastic spool
KET = Cardboard tube
BET = Plastic tube
  Alloy type SUS302  /  1.4310 (EN 10088-1)
  Standard weight 5 or 10 kg

Dosage information

Final Compounding

Volume % fibers Weight % fibers (*) Bulk resistivity ( Performance (**)
0.25 - 0.50 4 < 10² ESD protection
1 8 0.5 - 2 30 - 50 dB EMI shielding
1.5 11 0.1 - 0.5 50 - 60 dB EMI shielding
> 1.5 > 11 < 0.1 > 60 dB EMI shielding

(*) resin density: ± 1 g/cm³ - stainless steel fiber density: ± 8 g/cm³
(**) 30-1000 MHz shielding range

Storage instructions

Storage instructions Beki-Shield products 1Storage instructions Beki-Shield products 2


Wood or synthetic packing material


  • better together

    Situation Want to create long aesthetical walls and avoid movement joints

    Solution Applying Brickforce® allows me to double my joint distance

    Result With Brickforce® masonry reinforcement I can create new and exciting masonry wall design

  • better together

    Situation Skiers count on safety when they go up the mountain

    Solution In close cooperation Bekaert developed superior quality wires that meet the technical customer requirements of ropeway constructors

    Result The customer handles the production of the cables, but also on-site weaving (or splicing) and installation. The cables have a life expectancy up to 40 years

  • better together

    Situation We need a safe solution and huge monthly volumes

    Solution Via tests in the Bekaert lab, we worked out the required fiber mix with the lowest cost to serve our customers

    Result Cost efficiency must not be a compromise on quality

  • better together

    Situation You want to apply innovative solutions tailored to your projects

    Solution We analyze possibilities and come with economical solutions

    Result Save money and time during construction

  • better together

    Situation Customer demand for compact boiler design through a total solution.

    Solution Joint development of an environment-friendly burner system.

    Result Customers improve their competitiveness.