Aktifit AM in molded gaskets, o-rings and radial shaft seals

Calcined product, treated with amino silane.

Silfit Z 91 is applicable specially for sulphur and metal-oxide crosslinking.
 The product offers higher tensile strength, higher tensile modulus and lower compression set as well as better abrasion resistance and improved chemical resistance.

 

  • very low sieve residue
  • good mixing and dispersion properties
  • long flow time with short vulcanization time
  • easy deflashing
  • low compression set
  • good media resistance (fuel, oil, water, acid)
  • avoidance of mold fouling caused by filler
Product characteristics Unit AKTIFIT AM
Functionalization amino
Color values L*
Color values a*
Color values b*
96.2
- 0.1
1.0
Particle size D50
Particle size D97
µm
2.0
10.0
Residue > 40 µm
mg/kg
10
Volatile matter at 105 °C % 0.2
pH Value 9
Density
Bulk density
Tamped density
g/cm³
2.6
0.31
0.55
Spec. Surface area (BET)
Oil absorption
m²/g
g/100 g
9
65
Hardness silica/kaolinite
mg
7/4.5
Refractive index n 1.55
Water solubility
Acid solubility
%
< 0.5
< 1
Chemical Analysis:
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
%
0.11
0.29
0.55
Water absorption ml/g not specified
reactive X

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.