Aktifit VM in FKM-Compounds

Peroxide

Calcined product, vinyl functionalized.

Aktifit VM offers highest tensile strength, best abrasion resistance, best hot air resistance at high temperatures and resistance to acetic acid with minimum change in hardness.

very low sieve residue

good mixing and dispersion properties

high tensile strength

high abrasion resistance

long flow time with short vulcanization time

easy deflashing

low compression set

good resistance to substances (fuel, oil, water, acid)

avoidance of mold fouling caused on dies caused by filler

Product characteristics	Unit	Testing method	AKTIFIT VM
Functionalization			vinyl
Color values L* Color values a* Color values b*		acc. to CIELAB	96.2 - 0.1 1.0
Particle size D₅₀ Particle size D₉₇	µm	acc. to ISO 13320-1	2.3 11.0
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	0.1
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 0.37 0.70
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)	not applicable not applicable
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	0.05 0.07 0.08
Water absorption	ml/g	acc. to Baumann	≤ 0.1
hydrophobic			X
reactive			X

Peroxide

Neuburg Silliceous Earth as an acid resistant and tintable alternative to carbon black; 65 Shore A; FKM; peroxide cure (M 638.0/10)

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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.

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Sorted by crosslinking agent.

Bisphenol
Peroxide

Name	Short Description
AKTIFIT AM	High crosslinking speed, high tensile strength, very good abrasion resistance, good to very good resistance to water and fuel.
SILFIT Z 91	Similar to Aktifit AM, but with greatest elongation at break, good compression set, medium resistance to aggressive substances.
AKTIFIT PF 115	Similar to Aktifit AM, but lower viscosity, better abrasion resistance, better resistance to water, oil, fuel.
AKTIFIT PF 111	Similar to Aktifit AM, but with greater elongation at break, better resistance to oil, better compression set.
AKTISIL Q	Similar to Aktifit AM, but with lower mooney viscosity, greater elongation at break, very good compression set, good resistance to water and oil.

Name	Short Description
AKTISIL AM	High crosslinking speed, high tensile strength, high tensile modulus, good compression set, good hot air resistance, good resistance to oil and fuel.
SILFIT Z 91	Similar to Aktifit AM, but with greatest elongation at break, lower compression set.
AKTIFIT AM	Similar to Aktisil AM, but with highest crosslinking speed, best resistance to oil, greater elongation at break.
AKTIFIT PF 115	Similar to Aktifit AM, but higher tear resistance, better resistance to acetic acid.
AKTIFIT PF 111	Similar to Aktifit AM, but with higher elongation at break, lower compression set, resistance to acetic acid.
AKTISIL Q	Similar to Aktifit VM, but with best compression set, hot air resistance with positive change in tensile strength and elongation at break, resistance to acetic acid with minimum changes in tensile strength and elongation at break.