MGO Tile Backer Boards in Wet Or Dry Interior Areas

MGO Tile Backer Boards in Wet or Dry Interior Areas

MGO (Magnesium Oxide) tile backer boards are high-performance, mineral-based substrates designed for tile installation in both wet and dry interior spaces. They outperform traditional gypsum, cement, and wood-based backers by combining water resistance, fire safety, dimensional stability, and mold resistance-making them ideal for high-humidity zones and general interior tiling.

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What Are MGO Tile Backer Boards?

MGO boards are engineered panels made primarily from magnesium oxide (MgO), magnesium chloride, fiberglass mesh reinforcement, and mineral fillers. They are non-combustible, inorganic, and paper-free, with a dense, rigid structure that provides a stable base for ceramic, porcelain, stone, and mosaic tiles.

Core Composition

Base: Magnesium Oxide (MgO) cement (from magnesite ore)

Reinforcement: Fiberglass mesh (for flexural strength)

Fillers: Perlite, vermiculite (lightweight, insulating)

Additives: Phosphates, modifiers (enhance water resistance & stability)

Typical Specifications

Thicknesses: 6mm (¼"), 9mm (⅜"), 12mm (½"), 16mm (⅝")

Sizes: 3'×5', 4'×8' (standard sheet sizes)

Density:  0.8–1.2 g/cm³ (lighter than cement board)

Edge: Square (most common)

Surface: Smooth or textured (for strong tile adhesive bond)

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Key Performance Advantages for Interior Use

Exceptional Moisture & Water Resistance

• Non-absorbent: Does not soak up water; resists swelling, warping, or degradation even in prolonged high humidity.
• Mold/Mildew Proof: Inorganic composition does not support microbial growth (ASTM G21 certified: 0 mold growth).
• Wet Area Durability: Ideal for showers, tub surrounds, and wet rooms-no rot or deterioration like gypsum or wood.

A1 Fire Resistance (Non-Combustible)

• Meets A1/A 级 fire ratings (e.g., GB8624, ASTM E136).
• Withstands temperatures up to ~1200°C without melting, smoking, or releasing toxic fumes.
• Critical for commercial kitchens, laundry rooms, and fire-rated assemblies.

Structural Strength & Stability

• High flexural strength (dry:  12–18 MPa; wet: retains >80% strength).
• Dimensionally stable: No expansion/contraction with humidity/temperature changes.
• Supports heavy tile loads (up to 100 kg/m² when properly installed).

Lightweight & Easy Installation

• Lighter than cement board (30–50% less weight) → easier handling, lower labor cost.
• Install with standard tools: Score-and-snap, saw, drill, screw (no special equipment).
• Compatible with thin-set mortar, latex adhesive, and tile backer screws.

Eco-Friendly & Healthy

• Asbestos-free, formaldehyde-free, silica-free (no carcinogens).
• Made from abundant natural minerals; fully recyclable.
• Low carbon footprint vs. Portland cement or gypsum.

Additional Benefits

• Sound Insulation: Dense structure improves STC ratings (53–54) for quieter interiors.
• Thermal Insulation: Helps regulate indoor temperature.
• Insect Resistant: Inorganic material repels termites and pests.

 

Applications in Wet Interior Areas

MGO backer boards are the gold standard for wet zone tiling due to their water and mold resistance.

Primary Wet Area Uses

Shower & Tub Surrounds

• Direct substrate for wall tiles in showers, steam showers, and bathtub enclosures.
• Replaces cement board, greenboard, or fiberglass panels.
• Requires proper waterproofing (e.g., liquid membrane, sheet membrane) at seams and penetrations.

Bathroom Floors & Walls

• Tile underlayment for bathroom floors (including with underfloor heating).
• Vanity backsplashes, toilet surrounds, and wet room floors.

Kitchens

• Backsplash tile substrate (behind sinks, stoves, countertops).
• Kitchen floor tiling (resists spills, steam, and cleaning chemicals).

Laundry Rooms & Utility Spaces

• Walls/floors near washing machines, sinks, and water heaters.

Basements

• Below-grade tile installations (resists groundwater vapor and humidity).
• Installation Notes for Wet Areas
• Seal all board joints with waterproof tape/membrane.
• Use waterproofing compounds at corners, niches, and pipe penetrations.
• Follow manufacturer guidelines for screw spacing and adhesive type.

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Applications in Dry Interior Areas

MGO boards also excel in dry spaces, offering superior durability and fire safety vs. standard drywall.

Common Dry Area Uses

Living Rooms, Bedrooms, Hallways

• Tile flooring substrate (ceramic, porcelain, stone).
• Accent walls, fireplace surrounds, and tile wainscoting.

Commercial Interiors

• Offices, lobbies, retail spaces (high-traffic tile floors/walls).
• Schools, hospitals, and public buildings (fire-resistant, easy to clean).

Ceilings & Soffits

• Tile or decorative finish substrates (resists sagging, improves acoustics).

Interior Partition Walls

• Tiled feature walls or full-height tile installations.
• Why MGO in Dry Areas?
• More durable than drywall (impact-resistant, no dents).
• Fire safety for any interior space.
• Long-term stability (no warping, no paper to peel).
• Better adhesive bond for tiles than gypsum.

About MgO Backer Board:

Product Parameters:

Main Materials	MgO, MgCl2/MgSO4, Glass fiber Mesh
Fire Performance	Non-combustible, No flame spread, No smoke spread,No poisonous gas
Density	0.8-1.2g/cm3,
Flexural Strength	8-25Mpa
Impact Strength	≥3.5 kJ/m2
Moisture Content	≤8%
Shrinkage	≤0.3%
Swelling	≤0.3%
ScrewHolding Capacity	40-120/(N/mm)
Leachable Chloride	0.1%(MOS),3%(MOC)
Edge	Square/T&G/Tapered/Beveled
Thickness	6-15mm
Standard Sizes	4*8ft/1.22*2.44m(Other sizes can be customized)
Production Capacity	5000 square meters / day
Remark	The above parameters are acceptable to ODM

 

 

MGO vs. Traditional Backer Boards (Comparison)

Feature	MGO Tile Backer Board	Cement Board	Gypsum Board (Greenboard)	Plywood/OSB
Water Resistance	Excellent (non-absorbent)	Good	Poor (swells/molds)	Very Poor (rots)
Fire Rating	A1 Non-Combustible	Non-Combustible	Combustible (paper face)	Combustible
Mold Resistance	Excellent (ASTM G21)	Good	Poor	Very Poor
Weight	Light (0.9–1.2 g/cm³)	Heavy (1.4–1.8 g/cm³)	Medium	Medium
Installation	Easy (score/snap)	Heavy (cut with saw)	Easy	Easy
Durability	Excellent (decades)	Good	Poor (5–10 years)	Poor (5–8 years)
Cost	Mid-High	High	Low	Low
Best For	Wet + Dry interiors	Wet areas only	Dry, low-moisture	Dry, non-tile

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Product details

 

About The Factory：

 

Our Service:

1. Respond within 24 business hours.

2. Experienced staffs answer your questions in professional and fluent English.

3. The dimensions can be customized.

4. Special discounts and guaranteed sales are provided.

5. The best magnesium oxide board supplier in China.

 

Company Advantage (Why choose us)：

We specialize in quality control and consistency of MgO products. We have actively participated in the development of ASTM standards related to MgO products. We have joined hands with the China Magnesium Industry Association (CMMA), the Magnesium Oxide Building Products Association (MgOBPA) of North America, and the Magnesium Oxide Association (MOCA) to jointly promote the popularization of magnesium oxide cement products in the construction sector.

We are committed to the research, development, production and sales of green building products. Striving to be a leader in industrial and technological development, we aim to be a reliable supplier of high-quality products and services.

 

Packing and Shipping:

 

FAQ:

Q: What is your delivery time?

A: 1 month after receiving the deposit.

Q: Can you customize products?

A: Yes, we can cut any size as needed.

Q: What is your MOQ? Can we order a mix of different sizes?

Answer: Yes. The MOQ is 100 pieces and mixed loading is also acceptable.

 

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