Aktisil® VM 56 / 89

Aktisil® VM 56 / 89 by Hoffmann Mineral acts as a functional filler. Used either on its own or combined with extenders or flatting agents. It is an agglomerate of corpuscular silica and lamellar kaolinite. It is an activated Sillitin® Z 89, produced by modifying the surface with a vinyl functional group.

• Optimum performance is achieved in binder systems which polymerize or cure due to a radically initiated reaction which include unsaturated polyester-, vinyl ester and acrylic resins and other radically cured systems.
• It is also suitable for melamine and UF resins.
• It retains the excellent properties of the base material as it possesses high filling ratio, outstanding dispersion behavior, good pigment dispersion (spacer effect), low abrasiveness, very low tendency to settle and slight flatting effect.
• It is quick-drying, has a matting effect, and shows breathability, good scratch-, abrasion-, weathering-, chemical- and moisture resistance.
• As compared with the base, Aktisil® VM 56 / 89 minimizes yield point (including a high solids content) and offers excellent mechanical properties such as increased tensile-, bending-, wet edge- & impact strength.
• It achieves good transparency with a low yellow tinge in unpigmented coatings.
• It exhibits good wettability even using binders with low polarity and provides, minimal water absorption and high water vapor permeability.
• Applications include varnishes, emulsion-, UV or electron-beam cured-, stoving paints/ enamels-, anti-corrosive-, wood- and foil coatings.
• Recommended dosage level up to 50% (m/m), PVC up to appr. 30% depending on the target.
• The shelf life of product is 3 years.