Silfit Z 91 in cable and electrical industry

General

Calcined product based on Sillitin Z 86.

Silfit Z 91 offers an avoidance of deposits on dies caused by filler. The product shows greater brightness and color neutrality, less moisture content, improved dispersion as well as slightly lower compression set and significantly lower dielectric loss.

very good extrusion properties

medium to high tensile strength

good compressive properties at high temperature

good hot set properties

high electrical resistivity, also after immersion in water

avoidance of deposits on dies caused by filler

good resistance against oil, water, acid

very low dielectric loss, also aferter immersion in water, even without additional silane in the compound

Product characteristics	Unit	Testing method	SILFIT Z 91
Functionalization			untreated
Color values L* Color values a* Color values b*		acc. to CIELAB	96.5 - 0.1 1.0
Particle size D₅₀ Particle size D₉₇	µm	acc. to ISO 13320-1	2.0 10,0
Residue > 40 µm	mg/kg	acc. to DIN EN ISO 787 part 18	10
Volatile matter at 105 °C	%	acc. to DIN EN ISO 787 part 2	0.2
pH Value		acc. to DIN EN ISO 787 part 9	6.5
Density Bulk density Tamped density	g/cm³	acc. to DIN EN ISO 787 part 10 acc. to DIN ISO 903-1976 acc. to DIN EN ISO 787 part 11	2.6 0.33 0.55
Spec. Surface area (BET) Oil absorption	m²/g g/100 g	acc. to DIN ISO 9277 acc. to DIN EN ISO 787 part 5	10 65
Hardness silica/kaolinite	mg	acc. to Mohs	7/4.5
Refractive index n		sin α / sin β	1.55
Water solubility Acid solubility	%	acc. to DIN EN ISO 787 part 3 acc. to DIN 53770 (0,1 N HCL)	< 0.5 < 1
Chemical Analysis: SiO₂ Al₂O₃ Fe₂O₃	%	acc. to DIN 51001 (RFA)	86 13 < 1
Mineralogical Composition: Neuburg silica Calcined kaolinite	%	Based on X-ray diffraction pattern analysis combined with Rietveld	60 40
Equilibrium moisture content at 25°C and 50% relative humidity and 80% relative humidity and 90% relative humidity	%	acc. to DIN 66138	0.12 0.22 0.54
Water absorption	ml/g	acc. to Baumann	not specified

Material Specification

In order to make available to you the most important information about our products at all times, you will find here the Material Specification.

The aspects to observe when working with our products are detailed in our Material Safety Data Sheet, which also can be downloaded.

All information about material characteristics, application fields and benefits can be found in this Technical Data Sheet and is also for download available here.

Name	Short Description
SILLITIN Z 86	Standard product.

Name	Short Description
AKTISIL PF 216	Same as Aktisil MM, but with highest tensile strength and tensile modulus, lowest compression set, best abrasion resistance, best chemical resistance.
AKTIFIT AM	Same as Silfit Z 91, but with higher tensile strength, higher tensile modulus, lower compression set, better abrasion resistance, improved chemical resistance.

Name	Short Description
AKTISIL VM 56	Same as Sillitin Z 86, but with higher tensile strength, higher tensile modulus, lower compression set, better abrasion resistance, improved chemical resistance, high and constant electrical resistivity.
AKTISIL VM 56/89	Same as Aktisil VM 56, but for greater color neutrality requirements and slightly improved dispersion.
AKTISIL Q	Similar to Aktisil VM 56/89, but with less moisture content, lower viscosity, lower compression set, improved chemical resistance, best product for silicone rubber.
AKTIFIT VM	Same as Silfit Z 91, but with higher tensile strength, higher tensile modulus, lower compression set, better abrasion resistance, improved chemical resistance, very low dielectric loss, best product for medium- and high-voltage insulation.

Silfit Z 91 in cable and electrical industry

General

Material Specification

Safety Data Sheet

Technical Data Sheet

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