What is Galvanic corrosion?

Galvanic corrosion, also known as bimetallic corrosion, is an electrochemical process whereby one metal corrodes in preference to another metal that it is in contact with through an electrolyte.

Galvanic corrosion occurs when two dissimilar metals are immersed in a conductive solution and are electrically connected. Galvanic corrosion can make a conventionally non-corroding metal then corrode if the conditions are correct and it is connected to a dissimilar metal, i.e. aluminium and steel together.

Ways to prevent Galvanic corrosion

There are different ways to prevent Galvanic corrosion. Our 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 material is. It is measured in Volts per unit thickness (kV/mm). The higher the value, the more electrically insulating material is.

Heskins Corrosion Protection tape

Our Corrosion Protection tape is self-adhesive tape designed to form an insulating barrier between two metals and prevent Galvanic corrosion. Our H3453 Galvanic Corrosion protection tape is incredibly effective at preventing the electrolytic reaction.

All other physical properties are quoted on the current datasheet.

H3453 corrosion protection 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.

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