[spunkets]

"Air has a fairly good abrasive factor and is considered to be rated pretty high."

On the atomic scale the momentum imparted by the moving air particles is not sufficient to knock the components of the silica out of place. These tiles also have a very thin dense outer layer of borosilicate, that behaves just like a high density ceramic for atomic impact purposes. Atoms wacking it might be similar to 22 rounds hitting hardened concrete.

[Cold Heat]

I just cannot see how a large area, say 10 x30 inches (as some have purported) could have been stripped away completely or even 80 % by some relatively soft product with little mass. Since most of the energy would be absorbed by the break up of the insulation, the applied energy at any one point would not be sufficient to destroy enough tile to be a factor.