Aktisil

Often, fillers have to meet very special requirements. Here, it is not only good dispersion characteristics that count, but also mechanical and dynamic properties. Improved electrical insulation resistance, better aging and fluid resistance in many materials and improved anti-corrosion properties habe a crucial role to play in many areas. At Hoffmann Mineral, we developed Aktisil to meet these customer requirements. This special filler is made by treating the surface of Neuburg Siliceous Earth with chemical agents, especially silanes.

The reaction products created during the manufacture of individual types of Aktisil are largely removed during the process itself. The coupling reaction fixes the silane to the surface of the filler. Any undesirable side-effects that can occur during in-situ mixing (direkt addition of the silane) are virtually eliminated. So you, as a customer, can chose today from a complete product range of many different grades. This is the result of many years of in-house experience and of close cooperation with our customers. And this is expertise from which you can benefit!

Characteristics	Unit	Method	Aktisil VM 56	Aktisil VM 56/89	Aktisil Q	Aktisil MAM	Aktisil MAM-R	Aktisil EM	Aktisil AM	Aktisil MM	Aktisil PF 216	Aktisil PF 777	Aktisil WW
Brightness Y		DIN 53 163/ Measuring Geometry d/8°	81	85	84	83	80	82	82	81	82	80	79
Brightness Z		DIN 53 163/ Measuring Geometry d/8°	76	85	85	85	76	77	77	76	77	75	77
Particle Size D₅₀	µm	Internal Test Procedure	2,2	2,0	5,0	4,0	4,0	2,2	2,2	2,2	2,2	2,2	4
Particle Size D₉₇	µm	Internal Test Procedure	10	9	20	18	18	10	10	10	10	10	18
Residue > 40 µm	mg/kg	DIN ISO 787 Part 18	20	20	30	20	20	20	30	30	15	20	20
Residue > 200 µm	mg/kg	DIN ISO 787 Part 18	3	3	3	3	3	3	3	3	3	3	3
Volatile Matter at 105°C	%	DIN ISO 787 Part 2	0,8	0,8	0,3	0,2	0,2	0,5	0,2	0,7	0,3	0,3	-
Density	g/cm³	DIN ISO 787 Part 8	2,6	2,6	2,6	2,6	2,6	2,6	2,6	2,6	2,6	2,6	2.1
Bulk Density	g/cm³	DIN ISO 903- 1976	0,32	0,32	0,45	0,45	0,45	0,32	0,32	0,32	0,25	0,25	0.4
Surface Area	m²/g	DIN ISO 9277	7	8	7	7	7	8	9	7	8	8	-
Oil Absorption	g/100 g	DIN ISO 787 Part 5	45	45	45	45	45	45	45	45	50	35	22
Water Absorption	%	acc. Baumann	-	-	-	0,9	0,9	-	-	-	0,01	0,02	-
Base Material Sillitin			Z 86	Z 89	V 90*	V 88	V 85	Z 86	Z 86	Z 86	Z 86	Z 86	V 88

*internal product quality

More product characteristics that are identical with the base material are available under Sillitin / Sillikolloid.