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New structure modified silica type for Anti-Fouling Coatings to reduce biocide content by Evonik

  • Less biocide is needed for the same performance
  • More controlled release of biocide
  • Easy incorporation and low thickening effect
EVONIK INTRODUCES A NEW STRUCTURE MODIFIED SILICA TYPE FROM THE AEROSIL® PRODUCT GROUP.

VP 4200 is a new structure modified silica type with free OH-groups that enables formulating more ecofriendly, cuprous oxide containing Anti-Fouling coatings.

It is tailor made for both CDP and SPC coatings. (CDP = Controlled Depletion Polymer; SPC = Self-Polishing Coating).

VP 4200 forms a complex with Cu2O and is thus better able to control the release of the biocide.

Formulations with only 10 pbw% cuprous oxide and 4 -6 pbw% VP 4200 leads to the same performance as the standard type with up to 50 pbw% Cu2O.

VP 4200 has a relatively low thickening effect, so higher amounts can easily be incorporated into the systems, especially in combination with TEGO® Dispers 1010.

VP 4200 belongs to Evonik’s product line of silica-based AEROSIL® types.

Download TDS

Source: Evonik

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