Thursday, November 29, 2012

Prime time: Priming the gearbox castings

Having given the gearbox castings a final cleaning with an aviation surface prepping agent, they received what we hope to be the final masking to get them ready for paint.

It has been a long road to get to this point and we are starting to see the light at the end of the tunnel. First up though is a coat of super strong epoxy primer applied nice and thin so as to not hide the texture of the cast aluminum.

We started by mixing the primer using our milling machine to stir the contents at low speed for about 10 minutes and followed up with painting in a makeshift spray area we set up. With primer on we will soon move to putting on colour which will be the subject of a future and hopefully final post on the gearbox castings.


  1. Awesome work as always. I was curious though - I would assume that paint was applied after the parts were assembled. There is no way the factory did the mask job you guys are doing. Plus if they were painted once assembled, that would include painting the fasteners/nuts/etc.

    1. If you go back to our post on November 8th you will find the description as to why all the masking is being done.