TINNED COPPER FOIL

Hot Dipped Tinned and Electroplated Tinned Copper​ 

Tinned Copper Foil in Strip and Coil

Tinned Copper Cut Blanks 

Tinned Copper Components

Thickness: 

0.05mm-1mm for Copper Foil, strip and blanks. Other thicknesses available on request.

Width: 

Standard width 305mm, larger widths are available on request, we can slit down to 3mm or less dependent on application. 

Temper: 

Soft (annealed), quarter hard, half hard and hard, full hard. We do have the ability to do other special tempers on request.

Products we can offer:

    • Foil is very thin metal, often under 0.2mm.

    • Strip is a broader category that includes foil but generally refers to thicker metal.

    • Coil describes how foil or strip is stored and delivered, in a rolled-up format.

  • A component is any part or piece made of metal that serves a specific function within a larger system, machine, or structure. Metal components are integral to a vast array of industries due to metals’ strength, durability, conductivity, and versatility. They can range from very simple shapes to complex, intricate forms, depending on their purpose and design requirements.

  • A cut blank is a flat piece of metal that has been cut to a specific shape and size, often as a preliminary step in manufacturing or fabrication. Blanks serve as the starting material for further processing, where they may be stamped, formed, machined, or otherwise modified to create finished components or products.

Tinned Copper Foil Uses: 

Transformers

Screens

Shims

Architectural

Gaskets

Connectors

Marine

Automotive

Radiator Fins

To aid with preventing the tarnishing/oxidising of copper

Tinned Copper Metal Foil Properties: ​

Tinned Copper has the same properties as plain copper however the coated tin protects the copper from patina. This means the metal lasts longer without tarnishing. 

It is also water corrosion resistant so it doesn’t corrode when in contact with water and ensures that it maintains its electrical performance.

Tinned Copper provides a good contact surface so it’s an ideal material for soldering for thermal and electrical purposes. 
​
We offer hot dipped or electro-plated tinned copper. Hot dipped is a more economical way of tinning copper however, electro-plated has a more uniform surface finish.

Electroplated tinned copper → is copper that has been coated with a thin layer of tin through an electroplating process. Unlike the hot-dip method, electroplating uses an electric current to bond the tin to the copper, creating a smooth, uniform, and relatively thin layer of tin on the copper surface. This tin coating enhances the properties of the copper in several ways:

Key Benefits of Electroplated Tinned Copper

  1. Corrosion Resistance: The tin layer acts as a barrier against oxidation and corrosion, especially important in environments with moisture or salt exposure. This protection is particularly useful for copper, which can oxidise when exposed to air and moisture.

  2. Improved Solderability: Electroplated tinned copper is highly solderable, making it ideal for electrical applications that require reliable and durable connections, such as wiring and electrical connectors.

  3. Enhanced Conductivity: While tin itself is less conductive than copper, the tin coating helps preserve copper’s conductivity by preventing oxidation over time. This ensures the copper remains conductive and reliable in applications where stable electrical flow is critical.

  4. Thin and Uniform Coating: The electroplating process produces a very even, thin layer of tin. This is beneficial for applications that require precision, as the layer does not add much thickness to the copper and maintains its flexibility.

Hot-dipped tinned copper → is when copper has been coated with a layer of tin through a process known as hot-dip tinning. In this process, the metal is dipped into molten tin, which bonds to the surface, forming a protective coating.

This tin coating provides several benefits:

  1. Corrosion Resistance: The tin layer protects the underlying metal from oxidation, rust, and other forms of corrosion, extending the metal's lifespan.

  2. Enhanced Solderability: Tinned metal surfaces bond more easily with solder, which is beneficial in electrical and electronic applications where strong, conductive connections are needed.

  3. Improved Conductivity: While tin itself isn’t a highly conductive material, it protects the metal from oxidation, ensuring that the conductive properties of the base metal (often copper) are preserved over time.