Roberta Pecchini – IMCD Italia
Silane Terminated Polymers
The current trend of architects, engineers and designers for flooring of both indoor and outdoor spaces, both in commercial and residential environments, involves the application of textured effects, with a preference for the design of industrial flooring, with visible concrete effects, and with the use of sustainable products.
In this context, the new modified silane polymers proposed by Wacker, Silres® BS 6920 and/or Silres® BS 6921, allow for the formulation of floor coatings with numerous advantages: one-component product, ready to use, with no need to mix 2 components on site; ease of application with no constraints of residual moisture content in the floor; speed of application and use of the flooring, because it is quick to dry by crosslinking; excellent adhesion to all cement substrates, but not limited to them; excellent resistance to stain; excellent abrasion resistance; solvent-free, VOC less than 0.5%; resistant to weathering and therefore also suitable for outdoor applications; resistant to contact with high-temperature materials.
This novel polymer is an α silane-terminated polyether, where silane units are at the extremes of the polyether polymer chain and are very reactive, crosslinking quickly. Atmospheric humidity reacts with the polymer, and with the addition of an appropriate catalyst in the formulation, quickly forms a three-dimensional siloxane -network.
