I would like a single 900 x 600 laminate benchtop to for on a standalone 900 wide base unit that is used for a circular 400mm sink. I'd prefer a laminate surface but could do a timber surface if I knew how to seal it properly for kitchen use (my past attempts at using timber benchtops have all been a black soggy disaster). All the benchtops seem to be sold at 2400 length, and I don't have a use for the excess, and if cut how would I properly seal the ends? I don't know how laminate benchtop ends are sealed either.