xeitosaphil
Well-Known Member
I'm puzzled as well because that looks a good option. Why would it expand and contract more than the interior wood which may also be that thick?
Chances are the original galley is plywood covered in Formica laminate. Plywood is more stable as the veneers are laid at right angle to each other to make up the thickness. With wood veneer because of its thinness, is limited to small variations of expansion in each layer making it quite stable.
The work top in question, being made from solid timber and also multiple blocks even though of reasonably equal moisture content, could expand at different rates caused by the density of the individual blocks makeup, thereby causing it to be unstable. I can only assume that by epoxy coating it and excluding the possibility of adding moisture would help, so it could be more stable than oiled which is it’s normal finish?. But to be honest it is really too thick for the job in question IMHO as it would cause a lot of unnecessary work accommodating it with the existing ( Splashback ) fitments due to its added thickness.
The suggestion of using Altro flooring material is a good one, if you can find a finish you are happy with but the thickness is about 3 – 5 mm by memory, so still has the associated problems due to its thickness. It will also still need to be fixed with impact adhesive the same as Formica laminate.