Merkrete Hydro Guard SP‑1 is a fast‑drying, liquid‑applied waterproofing and crack‑isolation membrane engineered for high‑performance tile and stone installations. Formulated with modified elastomeric copolymers, it creates a 100% waterproof, load‑bearing barrier that prevents substrate cracks from transferring into the finished surface. Applied in liquid form, Hydro Guard SP‑1 conforms easily to corners, niches, and irregular shapes, forming a seamless monolithic membrane ideal for wet‑area protection.
Key Features
Fast‑drying, liquid‑applied waterproof membrane for tile and stone installations
Crack‑isolation performance helps prevent substrate movement from telegraphing through tile
Modified elastomeric copolymer formula for superior elongation, adhesion, and strength
Forms a monolithic waterproof barrier over flat or irregular surfaces
Ideal for showers, bathrooms, wet rooms, and other moisture‑exposed areas
Where It Performs Best
Hydro Guard SP‑1 excels in showers, bathroom floors, tub surrounds, laundry rooms, and commercial wet areas, providing dependable waterproofing beneath tile and stone. Its liquid application makes it especially effective for niches, benches, curbs, and complex shapes where sheet membranes are harder to detail.
A professional‑grade waterproofing membrane designed for reliable moisture protection and long‑term tile performance.
