I gave my car a really good polish and wax a few weeks back, I have washed every week since to keep the winter grime at bay, can tell wax still doing its job as still beading well however I am noticing my foam doesn't seem to dwell for long, get a nice thick coverage, go in the house to sort the bucket out by time I get back out nearly all the foam has ran off, seems to just slowly creep down the panels opposed to sitting on them. Anybody else noticed it?