No good for white aluminium prints though. Laser sublimation leaves grey where the white is in your image.
You are confusing laser sublimation toners.
There are 2 types:
1. Magnetic based laser toner is for metals and often used in the trophy business. Some keep the protective plastic covering on the substrate during heat transfer to eliminate grey "ghosting", the sublimation dyes still "shoot" thru the clear protective covering and any ghosting is removed when the covering is removed, the denser sublimation dye in the design remains. These toners are typically used in B&W lasers (1 color), some do offer different colors but it's 1 color at a time in the printer.
2. Polymer based laser toner like used on OKI are general purpose and can be used on anything, including white aluminum and won't ghost if you setup correctly.
I have used both types of toners.