Sillitin N 85 in molded gaskets, o-rings and radial shaft seals

General

Sillitin N 85 is a standard product and applicable for slightly higher requirements for color and dispersion and low compression set.

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)

Product characteristics	Unit	Testing method	SILLITIN N 85
Color values L* Color values a* Color values b*		acc. to CIELAB	93.5 1.0 9.0
Particle size D₅₀ Particle size D₉₇	µm	acc. to ISO 13320-1	3.5 17.0
Residue > 40 µm	mg/kg	acc. to DIN EN ISO 787 part 18	25
Volatile matter at 105 °C	%	acc. to DIN EN ISO 787 part 2	0.5
pH Value		acc. to DIN EN ISO 787 part 9	8.7
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 0.30 0.50
Spec. Surface area (BET) Oil absorption	m²/g g/100 g	acc. to DIN ISO 9277 acc. to DIN EN ISO 787 part 5	11 45
Hardness silica/kaolinite Abrasivity	mg	acc. to Mohs acc. to Einlehner	7/2.5 35
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)	84 10 < 1
Mineralogical Composition: Neuburg silica Kaolinite Other minerals	%	Based on X-ray diffraction pattern analysis combined with Rietveld	65 20 5

Molding / Light-colored

Rear light gasket, Bosch VS 15441; 25 Shore A; PNR; sulfur cure, injection molding (RRS 12)

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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.

More recommended Products

Sorted by crosslinking agent.

Name	Short Description
SILLITIN N 75	Standard product for non-critical compounds with low requirements.
SILLITIN Z 86	Standard product, less wear than Sillitin N products.
SILLIKOLLOID P 87	Higher tensile strength and tear resistance, least wear.
SILFIT Z 91	Same as N 85, but with avoidance of mold fouling caused by filler, greater brightness and color neutrality, less moisture content, improved dispersion, very fine cell structure in sponge rubber parts.

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

Name	Short Description
AKTISIL VM 56	Same as Sillitin Z 86, but with higher tensile strength, higher tensile modulus and lower compression set, better abrasion resistance, improved chemical resistance.
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 resistance, best product for silicone rubber.
AKTIFIT VM	Same as Silfit Z 91, but with higher tensile strength, higher tensile modulus and lower compression set, better abrasion resistance, improved chemical resistance.
AKTIFIT Q	Same as Silfit Z 91, but with higher tensile strength, highest tension value and lowest compression set, better abrasion resistance, improved chemical resistance.

Name	Short Description
AKTIFIT AM	Same as Silfit Z 91, but with higher tensile strength, higher tensile modulus, lower compression set, better abrasion resistance, improved resistance, improved chemical resistance.