Humber Seat Adjusters
These seat parts are from a Humber we dismantled the entire assembly, then they are de-rusted, Chrome and Nickel stripped and hand polished to a mirror finish, before re-plating. All internal components such as springs are Zinc plated for protection and then all the parts are assembled and tested.
The Seat Adjusters Process
The first part of the process is to remove and kill all the rust and this includes not just the front face of the component, but behind where the mechanism sits. So when re-assembled you can be sure they will not continue to rust from behind.
The next stage is to remove what is left of the original plating by electro chemical stripping. This is the reverse of electro plating and does not damage the base material.
The next stage is to grind the surface to remove the surface pitting left by the previous corrosion. This process is called the cutting out and probably one of the most important to achieve the best finish.
Once the material has been ground and smoothed it’s possible to polish the material to a mirror finish ready for plating. This is also important because you will only see through the plating what is on the surface below it. The plating will mirror the surface, so if you leave pits and grinding marks they will still be there after plating and in most cases look worse, because the plating will magnify every little imperfection.
On assembly all the parts are riveted and fitted back into the seat adjusted and test to ensure they work as good as they did when they were new.