Some brands will use the term “waterproof” to describe their products while others will say “water-resistant,” so what’s the difference?
Waterproof and water-resistant are not the same thing when it comes to flooring.

Water resistance:means that a certain element of the flooring is designed to withstand water better than normal. This typically means that you can have some water on the surface for a while before it soaks through. If you can’t get to a spill right away, water-resistant laminate floors will buy you some time.

• Waterproof:means that the water will never be able to penetrate the flooring for a certain amount of time some at 24/hrs others as high as 300/hrs depending on the manufactor. 

These definitions may also vary among manufacturers. To be certain of the water-resistance level in a product, be sure to thoroughly read the descriptions of the laminate floors you’re considering. Waterproof laminate sometimes depends on proper installation to ensure that water does not penetrate into the core and cause swelling.
It’s also possible toincrease your laminate floor’s water resistance during installation.Some manufacturers include instructions to finish the laminate floor installation with silicone sealant around the perimeter and under the baseboard for more water resistance.