Twoxentrix
Senior Member
The issue with using PPF or another pad between the magnet and the paint is magnetic force is inverse squared to distance, so a little distance makes a lot weaker magnet. Will the thickness of PPF make a significant difference? Not sure, but it will weaken the rated holding power.
The Load Force really wouldn't apply to begin with...
Load Rating on magnets is measured perpendicular to the surface its mounted to - Since these magnets would affix to a vertical surface and the weight (of the recovery boards) distributed in-line with that surface, any load rating which accompanies the unit would not be applicable.