CRC Coloured Zinc's unique formulation combines superior rust inhibiting properties of zinc with a tough but flexible enamel coating and a coloured satin finish in recognised safety colours. High levels of anti-corrosive zinc complexes are embedded in a resin system which forms a quick-drying highly-protective enamel coating with excellent adhesion to bare metal. CRC Coloured Zinc provides a satin top-coat finish but unlike standard paint systems, resists undercutting and blistering from corrosion by forming an effective corrosion barrier. For ultimate protection, prime the metal surface with CRC Zinc It prior to applying CRC Coloured Zinc. To achieve a high film build, use CRC Prep It as an intermediate coat if required. Ongoing protection can be achieved through simple re-coating after 3 years, depending on conditions. Protection in extreme conditions may require re-application more frequently.