This characteristic of CorrosionX is enhanced by the polar bonding along with capillary action.  The product spreads until it reaches its minimum thickness and, at the same time, frees seized parts as oxides are softened up in the process.  If you looked at mating surfaces under a microscope you would see “asperities” or surface roughness that appears to be similar to “microscopic mountains”, that allow creeping to take place no matter how tightly joined.  These microscopic voids aid in allowing the product to travel.