Lupus Cold Bluing Kit for Steel, Iron and Cast Iron – professional chemical finish
The Lupus bluing kit is designed for cold chemical blackening of steel, iron and cast iron parts. Ideal for restoring firearms, tools, or other metal objects. The kit includes everything you need to achieve a deep black or dark gray finish.
Contents:
Suitable for surface repair, antique restoration or full refinishing. Easy to use – no heating or special tools required. Trusted quality made in Germany.
Features:
Keywords: steel bluing kit, cold bluing, Lupus 520018, iron blackening, metal finish kit, gun barrel bluing