What waterproof actually means here
It is a claim about the core, and it is a real one. Hybrid's stone plastic composite core is limestone and PVC — there is no wood fibre in it to absorb water. Submerge a offcut in a bucket for a week and it comes out the same size it went in.
That is a genuine, testable difference from laminate, whose fibreboard core swells irreversibly once water reaches it. It is why our hybrid ranges are designed to resist swelling, warping and delamination from normal moisture exposure, and why they are suitable for appropriate residential areas such as kitchens and laundries when correctly installed and maintained.
A spill on hybrid is a non-event. A dog bowl that tips while you are out is a non-event. A dishwasher that weeps for an afternoon is survivable. That covers the overwhelming majority of what actually happens to floors.

