hey 1Pha;

If you are talking about that off white rubber material with lots of perforations I used to use it on top of a microwave to prevent slippage on the stainless steel top. After 2 years some of the sticky substance melted and seem to bond rather well to the stainless steel top and to this day the top of the microwave still has many sticky gummy blotches. Even a scouring pad did not help to remove it.