Last week i brought my transmission housing parts and some smaller bits to the local blasting company. The guy made a serious appearance and explained how Aluminum parts like these normally will be treated with class-triangles to break-up old paint and remove it. and then treated with glass-beads (pearls) to increase the surface density. He even told me  he’s gonna paint the cast-iron parts with a clearcoat to prevent it from rust… This is how it looked before: Clearly old silver paint peeling off is visible: Today i picked it up. and the first thing i noticed how “raw” and rough everything looked. It reminded me of sandblasted items. Sand-blasting…