HYDRO-BLOK® Wallboard is a foam backer board constructed with a 100% waterproof XPS foam core, reinforced with fiberglass mesh, and coated with a modified cement surface. This construction provides structural strength and a consistent bonding surface for tile, stone, glass, and mosaic installations.
The board can be cut using a utility knife, hand saw, or small circular saw, allowing for on-site sizing and shaping. Panels can be trimmed for straight cuts or shaped to follow inside and outside corners as required during installation.
Key Features
- Waterproof XPS Foam Core: Provides moisture resistance throughout the board.
- Fiberglass Mesh Reinforcement: Adds strength and dimensional stability.
- Modified Cement Coating: Creates a reliable bonding surface for tile and stone finishes.
- Cuttable and Shapeable: Can be cut with common tools and shaped to accommodate corners and transitions.
- Mechanical Fastening Required: Must be installed using approved HYDRO-BLOK® washers and screws.
Packaging & Availability
HYDRO-BLOK® Wallboard is sold by the pallet. Available sizes and pallet quantities are listed below.
| Board Size | Sheets per Pallet |
|---|---|
| 36" x 60" x 1/4" | 135 sheets |
| 36" x 60" x 1/2" | 75 sheets |
| 48" x 64" x 1/2" | 72 sheets |
| 48" x 96" x 1/2" | 75 sheets |
| 36" x 60" x 5/8" | 60 sheets |
| 36" x 60" x 1" | 36 sheets |
| 36" x 48" x 1-1/2" | 24 sheets |
| 44" x 96" x 2" | 20 sheets |
| 48" x 60" x 2" | 20 sheets |
HYDRO-BLOK® Wallboard provides a waterproof, cuttable backer solution for tile and stone installations using foam-core construction and mechanical fastening.