Blackfast Chemicals is a British company based in Surrey, with over 30 years of experience manufacturing chemical blacking solutions for steel, cast iron, and aluminium. The company specialises in room temperature blacking — a process that produces a durable, protective black finish on metal components without the need to heat the chemical bath. Their products are used by gunsmiths, armoury workshops, historical firearms collectors, precision tool manufacturers, and anyone looking to refinish or protect metal components of military and outdoor gear.
History and Specialisation
Blackfast Chemicals originally operated as part of the Lawrence Plc group, and has been an independent company since a management buyout (MBO) in 2005. The company focused exclusively on chemical metal blacking, building deep technical expertise in this highly specialised field over the years. The Blackfast process is a 7-stage immersion sequence in successive chemical baths that converts the steel surface into a black iron oxide layer (magnetite Fe3O4) with zero dimensional change to the part. This is a critical advantage for manufacturers of precision components where tight tolerances must be maintained.
Room Temperature Blacking Process
Conventional industrial blacking methods require heating the bath to high temperatures (above 140°C), which brings risks of burns, energy costs, and complex handling. Blackfast eliminates these issues: their solution works at ambient temperature, with no heating required, making it safe and straightforward to use even in a small home or gunsmithing workshop. Simply degrease the part, immerse it in the sequential baths, and apply a sealing oil to achieve a professional finish comparable to factory blueing. The coating provides corrosion and moisture resistance, and its deep, matte black appearance looks excellent on firearm components, knives, and tactical accessories.
Military and Collector Applications
Blackfast products are widely used among historical firearms enthusiasts and militaria collectors looking to restore the original appearance of once-blued components. A worn, faded, or rusted rifle action, revolver cylinder, or bayonet scabbard can be brought back to a deep, factory-grade colour with a Blackfast kit. Gunsmiths use the process to refinish firearm components brought in for service. Tactical and hunting knife makers use blacking to finish blades, metal bolsters, and other steel parts. Any owner of metal military hardware who wants to maintain its appearance and corrosion protection will find a straightforward and effective solution in Blackfast products.
Products and Kits
Blackfast offers blacking kits in a range of sizes suited to both hobbyists and small-batch manufacturers. The basic kit includes blacking solution, degreaser, and sealing oil, and every purchase comes with detailed instructions and certified operator guidance. The company also provides technical support by phone and email, helping users select the right proportions and troubleshoot the process. Products are available in sizes from 500 ml up to large containers for production lines.
Blackfast Chemicals at Militaria.pl
At Militaria.pl you'll find Blackfast Chemicals kits that let you restore a professional black finish to metal firearm components, knives, and tactical accessories at home. It's a simple, safe blacking method for the home workshop — no specialist equipment, no heating required. Browse the available products and keep your gear looking sharp and protected against corrosion.
