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Mineral Filler / HOFFMANN MINERAL / Neuburg Siliceous Earth (Aktisil MAM-R) XATICO Benelux-France Sàrl

Mineral Filler / HOFFMANN MINERAL / Neuburg Siliceous Earth (Aktisil MAM-R)

Mineral extender

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“ Advantages in PAINT & VARNISH applications: AKTISIL MAM provides the following benefits compared with the base SILLITIN V 85: • optimum wettability even using binders with low polarity • minimization of the yield point with high solids content • increased tensile and bending strength as well as impact strength • improved abrasion resistance and scratch resistance • increased resistance to chemicals and moisture • improved swelling characteristics • minimal water absorption with high water vapor permeability Advantages in ELASTOMERS applications: AKTISIL MAM-R provides the following benefits compared with the base SILLITIN V 85: • increased tensile strength • maximum tensile strength combined with a higher level of filling • increase in modulus • reduced tensile and compression set • reduced abrasion • improved resistance to liquids • electric resistivity remains high and constant after storage in water All excellent properties of the base material Sillitin V 85 are retained. To see those properties please refer to the product description of Sillitin V 85. ”
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AKTISIL MAM-R is an activated SILLITIN V 85, produced by modifying the surface with 3-meth-acryloxypropyl-trimethoxy silane. The by-products split off during the treatment reaction are largely removed during the production process which firmly attaches the silane to the filler surface. This helps minimize undesirable side effects, as they are potentially encountered with in-situ mixing (direct addition of silane to the compound).

During curing (hardening) of the paint formulation, the methacryl groups of AKTISIL MAM-R react with the functional groups of the binder, especially in the presence of radicals.
 


Characteristics:
 
Appearance: free-flowing powder
Brightness Y DIN 53 163: 80
Brightness Z DIN 53 163: 76
Volatile matter
at 105 °C: 0.2 %
Density: 2.6 g/cm³
Particle size distribution
d50 : 4.0 μm
d97 : 18.0 μm
Oil absorption: 45 g/100 g
Refractive index n: 1.55

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