a great link for linoleum, I've referenced it many times. Of course if the poster's floor is 18 yrs old, its likely that it isn't linoleum. Very little residential use of linoleum from ' 74 to ' 98 in this country. Posters often confuse the terms linoleum and vinyl, and its easy to do, just look at your use of "vinyl" in the 1st sentence of your reply. gotcha.