• Creates a protective black oxide coating on steel surfaces
• Ideal for guns and 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
• Made in Britain

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.

*Not for use on Stainless Steel