Tape the piece of the magnet that connects with the door. If strong enough magnet it should hold. Not paper tape, too thick probably.
Hmm, wonder what the mesh size is on the compound, must be 600 or better, not to affect the brushed finish on the metal. Nice fix! Depending on the price, I expect similar results could be achieved with automotive paint rubbing compound.
Great questions! It did affect the finish a little bit in the areas that I did circular motions instead of going with the grain, but the comparison to the before of a rusty messed up fridge it’s so much better. It actually looks like it belongs in the kitchen now.