At the forefront of innovation, BJS Gold www.bjsgold.com , has the largest gold plating facility in the world with a capacity to Hard Gold Plate stainless steel items of up to 10 cubic metres in size. Our reputation is built on producing only the very highest quality work, and with the capacity to make and Hard Gold Plate stainless steel items up to 10 cubic metres in size, the design possibilities are endless and you can relax in the knowledge that the timeless beauty of the gold will be enjoyed for many years to come.
Developed by NASA for use in the Apollo spacecraft, Hard Gold Plating allowed, for the first time, more than just a flash of gold to be deposited onto less precious metal substrates.
Under electrical impulse, gold is converted from a dissolved complex gold salt in water, to a measurable, consistent thickness of gold.
Power is supplied via platinum coated titanium anodes to the gold salt which then travels through the solution as positively charged gold ions. At the cathode, (the stainless steel item), the gold ions are then converted to a continuous layer of gold.
By controlling the amount of electrical current and the plating time, the weight and thickness of the gold deposit are accurately and closely controlled.
The traditional method of plating on to stainless steel is to lay down a nickel flash, then a layer of copper and finally another thicker layer of nickel prior to the gold being deposited. If any microscopic pin holes are present in any of these layers, corrosion cells will easily form causing corrosion damage to occur to the various layers of metal.
Using the BJS Gold method of depositing slightly alloyed gold (99.7% or 23.7kt), hence the term Hard Gold Plate, directly on to stainless steel, only inert metals are present and so corrosion cells cannot form.
For further information on BJS Gold please click here www.bjsgold.com.