Black Oxide Treatment, Excellent Results Options

[914Sixer]

I bought the black oxide kit from Caswell Plating several years back and have been playing with it from time to time. The results have been mixed up to now. I think I finally got it right this time. I had some rear hubs and stubs that need the treatment so I got after it. I bead blasted, wire wheeled and cleaned with lacquer thinner to remove everything that might cause a problem. Parts were dipped and put in reverse osmosis water to remove solution three times. I polished the parts with 00 steel wool between each dipping(optional step in the instructions). Parts were then given the sealing oil treatment with an additional step not mentioned. After parts were dipped in the sealing oil, I took a heat gun and brought the parts up to about 150 degrees. This let the oil bake into the metal. I am very pleased with the results. I am going to clear coat the exposed areas with one coat of high temp clear brake caliper just for extra protection. Maybe a little over the top for parts that won't be seen but I know they have been done right. Judge for yourself.

[914Sixer]

The sealing oil comes in the kit from Caswell.

[John]

The sealing oil comes in the kit from Caswell.

I thought that the secret sealing oil in the cold black oxide processes is a common product. I had read that it has a 40 in the name and was once called water displacement.


So, these parts were done with the Caswell Black Oxide kit? I wondered originally if this was the zinc blackener that they sell to go with their zinc plating kit.

I have used my zinc plating kit that I originally bought from them. I used that as a starter. I then bought a real rectifier and added to the kit they sold.