HOPASS SUN
HOPASS SUN trivalent chrome passivations are suitable for all zinc galvanizing systems and for various applications. HOPASS SUN passivations are applied on the zinc layer giving the same color as the hexavalent.
HOPASS SUN passivations are free from cobalt and fluoride ions.
HOPASS SUN are an economical passivations that lasts a long bath life and meets the requirements for exterior appearance, and supports and enhances corrosion resistance for best results, exceeding 288 h to WR (white corrosion). Ideal for both, rack and barrel applications, HOPASS SUN passivations ensure uniform gold-red-green deposits, while meeting today's complex design requirements. HOPASS SUN passivations meet and exceed the requirements of ISO 2081 for irradiation coatings. HOPASS SUN, then SEATOPS seals and HOTOPS lacquers also optimize the corrosion protection.