Triton MgO Products


TRITON® Waterproof Backer Board

TRITON® [WPBK] Waterproof Backer Board combines our patented MgO tile backer technology with a factory-applied waterproof and vapor barrier membrane, delivering an all-in-one solution that replaces both cement backer board and separate waterproofing layers.

Engineered for showers, bathrooms, and any moisture-prone application, it maintains a true watertight seal across floors, walls, and ceilings. Lightweight and easy to score and snap, it installs faster than traditional cement board without compromising performance.

ICC-ES certified and compliant with ANSI A118.10. Mold resistant. Free of crystalline silica and VOCs. Built to code, built to last.

1/2" 3'x5'

Weight/Unit:

27.8 lbs

SKU:

TWB05035B

1/2" 4'x8'

Weight/Unit:

59.2 lbs

SKU:

TWB05048B

BENEFITS
STANDARDS
View Specs
PROPERTY
TEST METHOD
3'x5'
4'x8'
Thickness
----
.45 in.
.45 in.
Density (Specific Gravity)
----
0.75
0.75
Weight
----
1.85 lbs/ft² (27.8 lbs.)
1.85 lbs/ft² (59.2 lbs.)
Flexural Strength
ASTM C 1185
>1,000 psi
>1,000 psi
Mold Resistance
ASTM G 21
0
0
Surface Burning Characteristics
ASTM E 84
0/0
0/0
Moisture Transmission Rate
ASTM E96
<0.075
<0.075

Domestic & International Options

Long lead times from overseas-only suppliers have killed more than a few project timelines. TRITON® Waterproof Backer Board gives you a choice, domestic speed or international savings, so you’re never stuck waiting on material when you should be building. Your Schedule. Your Budget. Your Call.

U.S. Domestic Manufacturing

We produce TRITON® Waterproof Board at our plant domestically in Houston, Texas. No shortcuts, no compromises, just made in the USA. When you need material fast, we can deliver it without the container wait.

International Manufacturing

When lead time isn't the pressure and cost optimization matters, our international production keeps the price competitive without touching the spec. You get the same MgO board, held to the same performance standards, at a lower cost basis.

Advanced Formulations Enable Superior Performance V.S. Gypsum and Other Cement Alternatives.
How to Install

Installation is quick, straightforward, with no additional training needed.

Used as a tile backer, TRITON® MgO panels go up faster, with fewer steps, and fit entirely within your crew’s current skill set. The boards score and snap cleanly with a standard utility knife, so there are no wet saws or special blades required. If they’ve been installing cement backer board, they’re going to love working with Triton MgO.