United Gypsum Board Moisture Resistant Sheet (MR)

Product Name

United Gypsum Board – Moisture Resistant Sheet (MR)

Dimensions & Physical Properties

• Length: 2440 mm
• Width: 1220 mm
• Thickness: 12 mm
• Weight (Approx.): 25 kg per sheet

Material Composition

• Core made of high-purity gypsum
• Enhanced with hydrophobic (water-repellent) additives
• Faced with moisture-resistant treated paper (green color)
• May include silicone compounds and additives to reduce water absorption

Key Features

• Moisture Resistance: Designed to resist humidity and damp conditions
• Reduced Water Absorption: Special core limits swelling and deformation
• Mold & Mildew Protection: Treated surface helps prevent fungal growth
• Smooth Surface Finish: Suitable for paint, tiles, or wall coverings
• Fire Resistance: Retains natural fire-resistant properties of gypsum
• High Strength & Durability: 12mm thickness provides rigidity and stability

Identification

• Typically green paper-faced board (industry standard for MR boards)
• Marked or labeled as MR / Moisture Resistant

Applications

• Bathrooms and washrooms
• Kitchens
• Laundry areas
• Basements or humid spaces
• Wall partitions and ceilings exposed to moisture

MR boards are commonly used where humidity is high but not direct water exposure.

Installation Compatibility

• Suitable for metal framing systems (GI channels)
• Can be tiled directly (with proper waterproofing where required)
• Compatible with jointing compounds and finishing systems

Advantages

• Prevents warping, swelling, and sagging in humid environments
• Extends lifespan of interior finishes
• Easy to cut, install, and finish
• Ideal base for ceramic tiles in wet areas

Limitations

• Not waterproof (should not be used in direct water exposure like shower interiors without waterproofing)
• Requires proper sealing and ventilation
• For extreme wet areas, cement board or waterproof boards are preferred