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Beki-Shield® GR

Beki-Shield® GR is a stainless steel filler material used in plastic compounds to provide electrical conductive properties. They can be used as a master-batch and have been designed for easy dispersion into the polymer matrix for both injection molding (dry blend) and for compounding. The Beki-Shield® metal fibers are also available in continuous bundles.

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Technical specifications

The following specifications represent the standard Beki-Shield® GR75 and Beki-Shield® GR90 range.
Contact Bekaert to discuss application specific requirements like coatings and compatibility. The Beki-shield® GR90 product has only 10% sizing in comparison with the Beki-Shield® GR75 which has also an additional coating. The removing of the additional coating layer with the Beki-Shield® will make the product more compatible with a larger variety of base polymer and will give you more control over the final technical properties of the end component.

Beki-Shield® GR75

Composition of grain75% SUS302 (EN 10088-1 : 1.4310) 
 10% sizing 
 15% coating 
Diameter of fibers8 µm or 11 µm±10%
Length of fibers4 or 5 mm±10%
Processing temperature (*)120 - 350 °C 
Compatible with (*)Polyolefins, Styrenics, PVC, TPU, PA6, PA6.6, PA, PPS, PBT, PET, POM... 

(*) Depending on coating type

Beki-Shield® GR90

Composition of grain90% SUS302 (EN 10088-1 : 1.4310) 
 10% sizing 
Diameter of fibers8 µm or 11 µm±10%
Length of fibers4 or 5 mm±10%
Processing temperature (*)50 - 290 °C 
Compatible with (*)General applicable, water soluble 

(*) Depending on product type

Dosage information

Volume %
fibers		Weight %
fibers (*)		Bulk resistivity
(Ohm.cm)		Performance (**)
0.25 - 0.504< 10²ESD protection
180.5 - 230 - 50 dB EMI shielding
1,5110.1 - 0.550 - 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
Applications

Applications