you’d have to blast it to PC it anyway. But if you PC it, you need to tell the PCer to outgass it before applying the powder, as cast aluminum is porous, and surely has a lot of oil and grease in the metal.
you’d have to blast it to PC it anyway. But if you PC it, you need to tell the PCer to outgass it before applying the powder, as cast aluminum is porous, and surely has a lot of oil and grease in the metal.