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Aktisil® VM 56 / 89

Technical Datasheet | Supplied by Hoffmann Mineral
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.
Aktisil® VM 56 / 89
Technical Datasheet | Supplied by Hoffmann Mineral
Product Type
Fillers / Fibers > Siliceous Earth
Chemical Composition
An agglomerate of corpuscular silica and lamellar kaolinite
Physical Form
Powder, Free-flowing
Product Status
COMMERCIAL
Applications/ Recommended for
  • Coatings > UV / Radiation Curing
  • Resins > Acrylics & Acrylic Copolymers
  • Resins > Polyesters > Unsaturated
  • Resins > Vinyls
  • Coatings Markets > Marine /Anti-Corrosive / Protective
  • Coatings Markets > Wood & Furniture Coatings
  • Foil coatings, Stoving paints/ enamels, Special emulsion paints

Aktisil® VM 56 / 89 Properties

Property

Value & Unit
Test Condition
Test Method
Density
2.6 g/cm3
DIN EN ISO 787 (Part 10)
Oil Absorption
45 g/100g
DIN EN ISO 787 (Part 5)
Refractive Index
1.55
(n)

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