Silfit Z 91 in hydraulic and fuel hoses

Calcined product based on Sillitin Z 86

Silfit Z 91 shows greater brightness and color neutrality, less moisture content, improved dispersion as well as slightly lower compression set. The mold fouling caused by filler will be avoided.

  • very good extrusion properties
  • high surface quality
  • high tensile modulus
  • low compression set
  • good resistance against fuels, oil, water, acid
  • avoids deposits on dies caused by filler
Product characteristics Unit SILFIT Z 91
Basic material SILLITIN Z 86
Silanized with untreated
Color values L*
Color values a*
Color values b*
95
- 0.1
1
Particle size D50
Particle size D97
µm
2.0
10
Residue > 40 µm
mg/kg
10
Volatile matter at 105 °C % 0.2
pH VALUE 6.5
Density
Bulk density
Tamped density
g/cm³
2.6
0.33
0.55
Spec. Surface area (BET)
Oil absorption
m²/g
g/100 g
10
65
Hardness silica/kaolinite
mg
7/4.5
Refractive index n 1.55
Water solubility
Acid solubility
%
< 0.5
< 1
Chemische Analyse:
SiO2
Al2O3
Fe2O3
%
86
13
< 1
Mineralogical Composition:
Neuburg silica
Calcined kaolinite
%
60
40
Equilibrium moisture content at 25°C
and 50% relative humidity
and 80% relative humidity
and 90% relative humidity
%
0.12
0.22
0.54
Water absorption ml/g not specified

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

more

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

more

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

more

More recommended Products

Sorted by crosslinking agent.