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At a Glance
Why Choose This Product
XPS foam resists moisture throughout the panel
Cement-coated surface provides an excellent bonding surface
Easier to handle and cut than cement backer board
Cuts with a utility knife, hand saw or circular saw
Designed for showers and other wet environments
Fastens securely using HYDRO-BLOK washers and screws
Product Information
HYDRO-BLOKĀ® Wallboard is a waterproof foam backer board designed for tile, stone, glass, and mosaic installations in both wet and dry environments. Its XPS foam core, fiberglass mesh reinforcement, and cement-coated surface provide a durable substrate for residential and commercial tiled wall assemblies.
The waterproof XPS foam core resists moisture throughout the panel while fiberglass mesh reinforcement and the modified cement coating create a stable bonding surface for tile installations. The lightweight construction makes handling easier without sacrificing rigidity or performance.
HYDRO-BLOK Wallboard can be cut using a utility knife, hand saw, or circular saw, allowing installers to easily create corners, transitions, niches, and custom layouts. The foam core simplifies fabrication while maintaining waterproof performance.
Wallboard installs using approved HYDRO-BLOKĀ® washers and screws for secure mechanical fastening. It is suitable for shower walls, wet areas, and other tiled wall applications requiring a waterproof tile backer board.
Common Questions
HYDRO-BLOKĀ® Wallboard is a waterproof foam backer board designed for tile, stone, glass, and mosaic installations on walls in both wet and dry environments.
Yes. It is designed for shower walls, wet area wall assemblies, and other waterproof tile backer board applications.
The board can be cut using a utility knife, hand saw, or circular saw, making it easy to fit custom layouts, corners, and transitions.
It is designed to support tile, natural stone, glass tile, and mosaic installations.
Each panel features a waterproof XPS foam core reinforced with fiberglass mesh and finished with a cement-coated surface for tile bonding.
The panels are mechanically fastened using approved HYDRO-BLOKĀ® washers and screws.
Yes. The XPS foam core is waterproof throughout the panel, making it suitable for wet area installations.
HYDRO-BLOK Wallboard is available in multiple thicknesses from 1/4" to 2" to accommodate a variety of wall assemblies, transitions, and installation requirements.
