WACKER: VINNAPAS Product Overview Europe ... - Wacker Chemie

ComPosite teCHnology witH
oPtimum ComPosition
The new composite dispersions from
VINNAPAS ® very cleverly combine
inorganic and organic components to
produce a product which allows colors to
remain bright and not fade on building
facades, thereby reducing the total
number of facade renovation cycles.
The core of the dispersions is made up
of inorganic silica particles (the basis of
quartz and glass) only a few nanometers
in size that are surrounded by organic
polymer particles.
Normally, if mineral particles are simply
mixed into an organic dispersion, the
particles can agglomerate during filming
and subsequently develop an uneven,
heterogeneous film. The organic shell
of the new composite dispersion now
prevents inorganic-particle agglomeration
during the film-forming process. Thus,
a homogeneous and stable film forms.
The special organic/inorganic combination
also lends specific benefits
to the dispersion. The elastic, organic
components have conventional binder
properties – strong adhesion and
cohesion, good mechanical properties
and improved processability. The solid
mineral components, for their part,
have outstanding barrier properties,
reducing dirt pick-up, ensuring
long-lasting color shades and lowering
the risk of algae or mold formation.
Composite dispersions also feature
improved scratch and abrasion resistance,
high thermal stability, and optimal
thermal conductivity and water-vapor
permeability. Of particular note is their
improved flame-retardancy due to the
high non-flammable inorganic content.
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