At Karas Plating, we pride ourselves on the high-quality products we provide to all of our customers across the UK. Every one of our metal finishing processes is approved to the highest standards and cover an expansive range of functions and requirements.
Karas Plating is a name you can rely upon for all of your metal finishing, surface coating, and electroplating needs. We provide an extensive range of processes, each one performed by our fully-accredited and highly-trained staff.
Here are some of our most popular processes. Simply click on the button for more detailed information.
Anodising is a method of applying a thin layer of anodic film over aluminium. The film is made up on aluminium oxide and is created by running a current through the metal whilst suspended in a tank of sulphuric acid. This process creates a tough and durable waterproof film on the metal that is both aesthetically pleasing and hard-wearing with a range of colours.
Much like bright tin plating, dull tin plating is a highly effective finish which can be applied to most metals for a variety of uses. It differs from bright tin plating, demonstrating a notable reduction in instances of “whiskering”, which often results in the shorting out electrical circuits. For this reason, the process is much used in the electronics industry.
Electroless nickel plating (or ENP) is a method of metal finishing that does not require the use of an electrical current. Chemical reducing agents such as sodium hydrosphite are used to produce a deposit of metallic nickel through the reduction of nickel ions. This uniform coating process means that even complex shapes can receive a complete nickel plating, leaving them highly resistant to corrosion.
We have a number of different techniques for plating with gold, all of which produce impeccable results. Hugely popular in the electronics industry, thanks to its conductive qualities and resistance to both corrosion and heat, gold plating remains one of our most sought-after processes.
This non-chromate passivate process involves a chemical reaction to create a hard-wearing and durable surface coating to various aluminium alloys. This coating is highly protective, offering great corrosion resistance to the base metal, as well as heat-resistant properties, making it the ideal solution for high-temperature applications such as engine parts and heat sinks,
Both rack and barrel plating are methods by which we immerse metal parts into our various plating solutions. Rack plating is normally used for the larger components and involves fixing them to a static metal rack, which is then lowered into the chemical tank. This ensures that the parts in question remain stationary throughout the plating process. Barrel plating is more commonly used for smaller pieces, with those components placed inside a barrel that is subsequently rotated in the solution. This technique provides a more uniform finish for the items.
Zinc-nickel plating is an extremely hardy electroplating technique, resulting in metal components that are resistant to both high temperatures and corrosion. The finished products are much sought after by both the aerospace and automotive industries, as well as the offshore sector.
An environmentally safe alternative to cadmium plating, zinc plating leaves a thin deposit of zinc on your substrate, resulting in a bright and aesthetic finish. Not only does it look good, zinc plating offers excellent corrosion resistance, acting as a sacrificial layer that corrodes before the base metal beneath.
Zinc phosphating is used to bind lubricants, oils, and waxes to a metal substrate. This process applies a thin layer of zinc phosphate to your base material, where it acts as an adhesive, holding these other coatings with greater efficiency. Often used in extreme working conditions, zinc phosphating not only offers greater protection and corrosion resistance, it also increases lubricity on low-friction surfaces.
Chemical brightening is a popular application for industries that use aluminium as a core material. Quite aside from the aesthetic results of the process, chemical brightening can make aluminium more reflective and durable. It also ensures that edges and indentations in the metal are not worn away during the brightening process, which often occurs with manual polishing techniques.
OSP (or Organic Solderability Preservative) is a water-based coating method that is usually applied to copper pads and terminals in the electronics industry. The coating bonds tight to the metal, protecting it during the soldering process. Being an organic coating material, OSP is an environmentally-friendly solution.