Colored roofing granules and methods for their preparations, having decorative metallic appearance and enhanced stability against discoloration of color containing a silica-encapsulated metallic flake or colored lamellar effect pigment distributed in an insolubilized alkali silicate coating.

Gefärbt roofing Körnchen und Methoden für ihre Vorbereitungen, dekoratives metallisches Aussehen und erhöhte Stabilität gegen die Entfärbung der Farbe habend eine Silikon-eingekapselte metallische Flocke oder farbiges Lamellenein effektpigment verteilt in einer insolubilisierten Alkalikieselsäureverbindungschicht enthalten.
 
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> Photocatalytic active carbon, colored photocatalytic active carbon, coloring active carbon, and deodorant and adsorption product using them

> Two layer coating system having an enhanced visual effect
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