Acorn Surface Technology


0845 652 0319


We offer free telephone support for Aerospace and Defense Sector manufacturers.

IVD Aluminium Vacuum Coating

Acorn Surface Technology now has both NADCAP and AIRBUS approval for the IVD Process.

Ion Vapour Deposition, known as IVD or Ivadising, is a physical Vacuum deposition process which is used to apply a pure Aluminium coating to various substrates, to improve the resistance to atmospheric and bi-metallic corrosion. 
The manufacture of modern aircraft demands the use of high performance materials and protective systems which also need to be environmentally friendly. Historically Cadmium plating has been the mainstay for protecting both Steel and Aluminium components but, following increased environmental concerns and recent legislation, it is increasingly being replaced. 
Many alternatives to Cadmium have been investigated over the years but none have fulfilled all the requirements, however IVD Aluminium has emerged as the leading single process replacement in many applications. 

IVD Aluminium is a smooth, uniform coating of pure aluminium, produced by vacuum deposition and is currently used in  aerospace and defence  applications where critical corrosion resistance with electrical conductivity is paramount or where dissimilar metal contact can cause galvanic attack. 
Typical components currently processed with an IVD Aluminium coating include – Engine and Airframe fasteners (Steel and Titanium), high tensile Steel airframe parts, Titanium bearing shells, landing gear components and assemblies, sintered magnets and electrical connectors. 

  • IVD Aluminium has the following advantages:
  • Provides sacrificial corrosion protection to Steel without the risk of hydrogen embrittlement.
  • Provides improved corrosion protection to high strength Aluminium alloys.
  • Can be used in contact with aero engine fuels.
  • Neither the process nor the coating create toxic materials.
  • Corrosion resistance is at least equal to that of Cadmium.
  • Prevents dissimilar metal corrosion e.g. Ttitanium, Stainless  Steel parts in Aluminium assemblies
  • The coating can be applied within closely controlled limits.
  • Class 1 > 25 microns; Class 2 - 13-25 microns; Class 3 - 8-13 microns
  • The coating is highly conducting.
  • It is stable up to 415degC.
We have approvals from all the large OEMs. See our Approvals page for more details. 
Acorn Surface Technology provide a wide range of processes in order help solve your problems. 



IVD Aluminium









Selective Coating


2018 | All Rights Reserved | Acorn Surface Technology

Digital driven by LynchBuchanan Ltd