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Wednesday, 18 September 2019
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Raw materials & technologies, Raw materials, Coatings pigments

Zinc-free coatings pigments exhibit anticorrosive properties

Monday, 29 July 2013

Activity of a new range of zinc-free anticorrosive pigments is based on the synergic combination of selected inorganic and organic compounds.

The new zinc-free pigments show anticorrosive properties

Source: Larisa Lofitskaya - Fotolia.com

The new zinc-free pigments show anticorrosive properties

Source: Larisa Lofitskaya - Fotolia.com

As a response to the increasing demand for more sustainable products, a range of zinc-free anticorrosive pigments was developed to satisfy this need. Their activity is based on the synergic combination of selected inorganic and organic compounds and they consist of a specially tailored core part based on silicate and phosphate chemistries with an organic treatment. Their anticorrosive mechanism is based on the precipitation of phosphate and oxide like compounds that protect anodically and cathodically the metal substrate, meanwhile the organic part increases the barrier effect and the compatibility with the resin, causing an improvement of the anticorrosive performance of the paint.

Dr Ricard March, Nubiola Group, Spain, will introduce the new range at the European Coatings Conference "Protective Coatings” on 12/13 September, 2013 in Düsseldorf, Germany.  

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