Klever quick bluing or cold bluing - ideal for bluing all gun steels up to 3 hromium content.With Klever quick bluing, steel (up to 3 hromium content) and iron can be blued spotlessly. Whether damaged bluing on long and short guns, complete gun bluing or the bluing of small components in trade and industry: Klever rapid bluing saves lengthy bluing baths, time and money. Even zinc die-cast parts, such as signal pistols, can be processed. Simple treatment: degrease the surface, apply the burnishing agent, allow to act, rinse with water, dry and spray with gun oil. Contents 50 ml.ApplicationApply Ballistol Quick Blackening only to untreated areas or areas to be repaired, as it can visually alter an already existing blackening.Clean metal parts or the areas to be blackened with Robla Cold DegreaserPolish the areas to be blackened with fine steel wool to remove any surface oxidationClean again with the degreaser - after degreasing, do not touch the metal surface with your finger to avoid creating new fingerprintsApply Quick Blackening with a blackening applicator - Allow blackening agent to act for approx. If you want to intensify the coloration, repeat steps 3 to 5 - if you want to achieve very deep coloration, these steps can also be repeated several times. Preserve new bluing with Ballistol Universal Oil or Gunex Gun Oil. May be corrosive to metals. Harmful if swallowed. Causes skin irritation. Causes severe eye irritation. Toxic to aquatic organisms, with long lasting effects. If medical advice is needed, have container or label at hand. Wear protective gloves/eye protection. Keep out of the reach of children. Dispose of contents/container for recycling.