Pure and chemical resistant Gold, Copper and Champagne colour pigments for Powder Coatings
PCU stands for a new generation of coating for non-leafing pigments with an extremely high level of chemical resistance. What makes the PCU pigments so special is the innovative concept of pigment encapsulation with an inorganic/organic double coating. PCU coated pigments are well known from the PCU aluminium series. The concept is to embed a platelet metal core in an inorganic matrix of silicon dioxide and to do a further encapsulation with a special organic acrylate layer. This concept was transferred to bronze, copper and Aloxal®-pigments.
The advantage of using this technology on substrates with pure bronze, copper or champagne colours is that disadvantages like different chargeability of blends of different effect pigments can be reduced while obtaining an excellent chemical resistance.
Combining new substrates with this unique inorganic/organic double coating provide the PCU-pigments an exceptional resistance regarding corrosion and chemical resistance. Therefore the PCU pigments will open up new application fields for metallic powder coatings where improved chemical resistance is required.
The key advantages of PCU Rich Gold 4000, PCU Copper 4000 and PCU Aloxal® 2000 ar
- good hiding power in comparison to mica pigments
- extraordinary chemical resistance
- excellent rub resistance in single-layer powder coating applications
- good pigment wetting
- pronounced non-leafing properties
- good shear stability
- good electrical charging
- very good processability
The typical pigmentation level of PCU pigments varies between 0.5 % and 5.0 %.