Aktisil Q in Silicone Rubber (20/07/2009)

AKTISIL Q is a new product in the range of surface treated Siliceous Earth of Hoffmann Mineral. The company located in Neuburg, Germany has recently developed this functional filler especially for the application in HCR silicon rubber. AKTISIL Q can be used as functional filler either on its own or in combination with other non-reinforcing or reinforcing fillers. The best effect is achieved in radical cured systems (peroxide, high energy radiation).

AKTISIL Q should be used where high tensile strength and moduli along with very low tensile and compression set are of importance as well as excellent processing properties and high oil resistance. These effects offer an ideal combination in particular for moulded articles with high requirements as to tensile and compression set. Furthermore blooming of cross linker or reaction products of bis-(2.4-dichlorbenzoyl)-peroxide can be avoided.

Even more, the extrusion of silicone rubber profiles and hoses containing AKTISIL Q will result in products with excellent surface quality, reduced stickiness, very smooth edges of profiles and high collapse resistance, compared to the use of surface treated quartz flour.

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