I am considering applying LS Bell Hammer Gold Spray to reduce edge loss in ski races. I understand that the film reacts with heat, but can it be formed with a waxing iron (approx. 150℃)?

If you apply LS Bell Hammer Gold Spray to the edge (metal part) of your skis, there is a high possibility that the spray will be effective when it rubs against the snow.
It is recommended that the spray be applied at the time of skiing, since it is necessary for the metal to rub against the snow, not by pressing against it with an iron or the like.