Hot black oxide room temperature black oxide since 1937 hubbard hall has been setting the pace for the metal blackening industry.
Black oxide process equipment.
Making black oxide appealing in instances where a coating is required with no build up of material.
A deep uniform black finish with no rub off.
Birchwood technologies has taken the difficulties of procuring finishing tank lines.
Innovative rectifiers and wetting agents to eliminate the effects of contamination and reduce dragout.
Simple inexpensive bath operation.
From steel and polypropylene tanks to exhaust systems automated hoists filters rectifiers and ion exchange systems epi can design and supply the rack or barrel finishing equipment necessary for a metal finishing job.
Epi is proud to partner with several leading companies to help clients design and source their electroplating or black oxide equipment.
Our prepackaged immersion metal finishing systems are available in 5 gallon starter kits 40 gallon lines and 100 gallon lines plus we also have an automated cnc finishing system with integrated programmable hoist.
Black oxide activator 1 quart makes 2 5 gallons black oxide activator product does not perform blackening.
Certain hardened or specialized steels can prove challenging to blacken with our black oxide solution only blackening to a grey color.
Epi is the only supplier to offer all three black oxide chemical processes for steel.
Hot black oxide 285 f mid temperature black oxide 225 255 f room temperature black oxide 65 85 f all of our black oxide processes can be used in house saving finishing costs cutting lead times and increasing productivity and quality.
Originally developed to replace highly poisonous cyanide methods of bluing our steelkote process does not contain cyanide mercury or heavy metals which are detrimental to the.
Black oxide plating can be applied to things made from copper.
The development of black magic the first single bath blackening process for steel initated a string of innovations.
Chemistries for ferrous non ferrous and powdered metals.
Dubois black oxide lines offer.
Black oxide on copper is a durable solution that can assist in preventing corrosion for equipment tools and machinery that are made from copper.
Therefore hydrogen embrittlement is not a factor.
If the parts are scaled or rusty and an acid pickle is required any hydrogen that may have evolved will quickly dissipate in the black oxide tank running temp.
Black oxide on copper is only possible for metal surfaces that are 65 copper or more.
It is an activator for use before blackening.
If your needs don t fit our prepackaged systems we can customize to fit your application.