Standard laminate flooring is not 100% waterproof. Traditional laminate planks have a wood-based core, which means they are susceptible to water damage if liquids seep into the joints or the core. Water-resistant vs. waterproof is an important distinction:

• Water-resistant laminate: Most laminate flooring products are water-resistant to a degree. This means the wear layer and surface can resist spills for a short time, and some laminates have tight locking systems or water-repellent edge coatings that help delay water penetration. If you spill something and wipe it up promptly, a water-resistant laminate will handle it fine. However, if liquids are left to sit or if large amounts of water inundate the floor, they can eventually penetrate and cause the planks to swell or warp.

• Waterproof laminate: In recent years, manufacturers have introduced waterproof laminate flooring options. These typically have specialized cores (or coatings) that do not absorb moisture, and improved locking mechanisms and edge sealants. Waterproof laminate floors will not allow water to penetrate the plank itself even if it sits on the surface (within the product’s specified time limit). This means they can handle bigger spills or wet mopping better than standard laminate. Always check the product specifications – if a laminate is marketed as “100% waterproof,” the manufacturer usually provides guidelines on how long water can sit (e.g., 24 or 72 hours) without damage.

Despite waterproof improvements, no laminate should be left submerged in water indefinitely. The flooring is waterproof, but water could still get around or under planks and damage the subfloor or cause mold. Also, waterproof laminate does not mean you can install it in outdoor or continuously wet environments – it’s meant for residential kitchens, baths, etc., where occasional spills happen.

Bottom line: Regular laminate is water-resistant but not impervious to water, and you should wipe up spills quickly​. If you need true waterproof performance (for a bathroom, mudroom, basement prone to moisture, etc.), consider either a waterproof-rated laminate or use vinyl flooring, which is inherently waterproof (vinyl is made of PVC and can handle water without damage​). Many homeowners now opt for luxury vinyl in bathrooms and save laminate for drier areas.