wrote in message
ups.com...
Martik wrote:
Rough it up will 80 grit sandpaper

Is that all it would take, just a liittle roughing up?

If the laminate is not secure it may eventually
pull away from the wall. Are you covering ALL
the laminate?

I'm just doing 2 1/2 rows (15") right above the counter top. The
formica goes up twice that far thus the reason for not removing the
formica. It seems to be well glued to the wall. I tried pulling it at
the edge and it seems hard fast. With the tile also having 6
receptical covers and 2 electrical switch covers pulling the tile field
and the formica against the wall, I don't think it will come undone.

Should this 80 grit sanding be done with a sander or is all that is
needed is a light hand sanding?

You want to scratch the surface to give the mastic something to bite into,
maybe drill some 1/8" holes. Glue one tile down and test the strength when
it dries.