JENOLITE Koldblack Gun Blue

Made In Britain
Made In Britain

Jenolite are proud members of the Made In Britain Organisation.

Made in Britain brings together the British manufacturing community, united with the use of the registered collective mark.

The mark is protected and can only be used by members of Made in Britain.

JENOLITE KoldBlak Gun Blue

Simple To Use Cold Bluing Metal Finish

JENOLITE Koldblak is a simple, cheap and effective way to 'Blue' steel surfaces. Traditionally used on gun barrels and tools, it improves the look and adds a level of corrosion protection.

The coating produces a protective black oxide coating on steel that is integral with the surface, meaning there is no dimensional change. Koldblak is the safer alternative to the traditional hot caustic processes and is ideal for small and large volume users alike.

Available in a variety of sizes.

  • Creates a protective black oxide coating on steel surfaces
  • Ideal for guns ands tools, leaving an attractive finish
  • For use at room temperature – The safer alternative to hot caustic processes
  • Simple and economic to use - Ideal for small and large volume users
  • Once treated it creates an ideal surface to absorb wax, oil or other rust-preventative sealants to give superior corrosion protection
  • The coating is integral with the surface, meaning there is no dimensional change
  • Available sizes: 125ml | 500ml | 1 Litre | 5 Litre

How to use

Remove all traces of oil or grease. Remove old paint and loose rust with steel wool or wire brush.

  1. DEGREASE: Ensure that the surface is completely free from rust & corrosion. Once this has been achieved the material should be degreased using solvents.
  2. MIX: Using a plastic container, mix a solution of Koldblak with 25% concentration (three volumes of water and one of koldblak) at room temperature (15-25°C). Once mixed, immerse the item for a period of 5 – 15 minutes.
  3. RINSE & FIX: Remove all traces of oil or grease. Remove old paint and loose rust with steel wool or wire brush. Fix the black finish by treating the part with an oily protective product.
  4. PROTECT: Once dry, you can protect the finish using a water repellent of your choice, such as paraffin wax or an alternative oil-based product. The blackening layer fully cures after 24 hours.

Consult the safety date sheet before use. Not for stainless steel.

JENOLITE Koldblack Gun BlueRust Shield Clear Metal LacquerJENOLITE Liquid Metal Polish | Multi Purpose Polish | 1 LitreJENOLITE Jade Oil | 500ml | Protective Oil Coating for Metal | Displaces Moisture and Drys MetalLiquid Rust Remover
KoldBlak Gun BlueRust Shield Clear Metal LacquerLiquid Metal PolishJade Oil Moisture RepellentLiquid Rust Remover
Sizes Available125ml | 500ml | 1 Litre | 5 Litre400ml500ml | 1 Litre500ml500g | 1kg | 5 Litre
UsageMetal Bluing for steel surfaces. Ideal for guns, tools, screws and boltsClear metal lacquer for bare metal or rusted surfaces. Prevents further rusting.Liquid metal polish. Cleans and removes tarnishing, leaves protective film.Displaces moisture and leaves protective film.Removes rust, taking back to bare metal.