What is Galvanic corrosion?

Galvanic corrosion, also known as bimetallic corrosion, is an electrochemical process where one metal corrodes in preference to another metal that it is in contact with through an electrolyte. Galvanic corrosion occurs when metals with different electrode potentials are in contact, in an electrolyte, due to one acting as an anode, and the other as a cathode. The result is that one metal will corrode faster than normal (anode), the other will be completely inhibited (cathode).

Ways to prevent Galvanic corrosion

There are different ways to prevent Galvanic corrosion.

Heskins® focus is on insulation, that is, breaking the electrical connection by insulating the two metals from each other.

Dielectric Strength

Dielectric Strength measures the electric strength of insulating materials at various power frequencies.  It is an indicator of how good an insulator a material is. It is measured in Volts per unit thickness (kV/mm).  The higher the value, the more electrically insulating a material is.

Heskins® Corrosion Protection tape

In response to customer demand, Heskins® are offering 3453 corrosion protection tape to act as an insulator between two metals which would otherwise be in direct contact. Heskins® 3453 Corrosion Protection tape is a specially produced plastic self-adhesive tape designed to form an insulating barrier between two metals and prevent Galvanic corrosion. It is a perfect solution when bringing two metals such as aluminum and steel together, and the adhesive backing helps the application process, ensuring a flat, corrosion-resistant surface which your other metal can be applied to, making it an efficient and cost-effective application.

The quoted dielectric strength of Heskins® Corrosion Protection tape is 20kV/mm.

All other physical properties are quoted on the current datasheet.

3453 anti corrosion tape is available in rolls, sheets and die-cuts, of which can be combined to allow you to get the right size required. Rolls and sheets can be shipped immediately, but with the exception of certain die-cuts, dependent on order quantity we can produce specific die-cut shapes for your needs.

Tape Thickness

Corrosion Protection Tape features a total applied thickness of 0.03 Inch, delivering a durable yet adaptable layer designed to safeguard metal surfaces from environmental damage. Its flexible carrier film allows the tape to conform smoothly to flat, curved, or irregular shapes, ensuring a uniform protective seal. This construction provides long-lasting resistance against moisture, abrasion, and corrosive elements without adding excess bulk, making it ideal for pipes, fittings, machinery, and other components requiring reliable all-weather protection.

Custom Printing

Safeguard essential assets with custom-printed Corrosion Protection Tape, built to shield metal surfaces while clearly communicating protective measures. Designed for use on exposed pipework, ducting, and structural components, this tape is ideal for industrial, marine, or subterranean environments where corrosion is a constant risk. Custom printing allows for the addition of warnings and instructions that prevent accidental interference and support routine maintenance. In utility tunnels or storage yards, it could display messages such as “Protected Surface: Do Not Disturb” or “Moisture Seal In Place”. With durable adhesion and tailored messaging, Corrosion Protection Tape offers both protection and clarity in high-risk locations.

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