The Gruen 90° Outside Corners are preformed, seamless waterproofing corners designed to create a watertight seal at external junctions in tile installations. Made from durable waterproof fabric, these outside corners prevent leaks, moisture buildup, and mold growth in bathrooms, showers, wet rooms, and outdoor tiled areas. With a 4-mil thick construction, they provide long-lasting waterproofing performance, making them essential for both residential and commercial projects.
Each package contains two outside corners, eliminating the need for custom cutting or shaping. Their flexible, pre-molded design allows for quick and easy installation, ensuring a secure fit with waterproofing membranes, tile adhesives, and thin-set mortars. Whether you're a professional tile contractor or a DIYer, the Gruen 90° Outside Corners provide an efficient, reliable solution for sealing exterior tile edges and transitions.