ALX™ Pro

ABOUT THE SYSTEM

Experience unmatched strength, durability, and design with ALX, Westcoat’s waterproof deck coating system. Formulated for plywood surfaces, the ALX system integrates the finest acrylic resins and cement blends into a reinforced, galvanized metal lath. ALX eliminates plywood seams and is ideal for use in heavy traffic areas. ALX Pro calls for an added fiberlath reinforced membrane. ALX Interior option provides a solution for transforming a wood subfloor to a decorative concrete or epoxy finish. ALX Under Tile system provides a blank slate for installing tile as it waterproofs your exterior deck over living space.

Westcoat ALX Pro is a waterproof walking deck system. This bonded system is reinforced with metal lath, a fiberlath reinforced membrane, features a series of polymer-modified cementitious applications and is sealed with Westcoat’s SC-10 Acrylic Topcoat. The finished product weighs approximately 2½ lbs per square foot. This system gives plywood the look and feel of concrete with a decorative appeal.

Deck inspections and fire-rated coatings are more than just trending topics—they’re essential for safety, compliance, and long-term performance. To support architects, contractors, and property managers, we offer dedicated resources on both: a Deck Inspections page that explains SB 721 and SB 326 requirements, and a Fire-Rated Systems page detailing how Westcoat solutions meet today’s strictest building codes.