9.5mm Lightweight Moisture Resistant Gypsum Board

1220×2440mm / 4×8 ft Water Resistant Plasterboard for Interior Projects

The 9.5mm lightweight moisture resistant gypsum board is designed for interior wall and ceiling projects where lower board weight, easier handling, and better humidity resistance are required. Compared with ordinary gypsum board, this green plasterboard helps contractors improve installation efficiency while reducing material concerns in damp indoor areas such as bathrooms, kitchens, laundry rooms, utility spaces, and coastal residential projects.

With a core weight of approximately 7.5 kg/m², this 9.5mm board is easier to lift, cut, move, and install than heavier standard boards. For large commercial fit-out projects, hotel renovations, healthcare facilities, and apartment developments, the lighter weight can help reduce labor fatigue, improve installation speed, and lower overall handling pressure on the ceiling or partition system.

Key Product Advantages

Lightweight for Faster Installation

The 9.5mm thickness provides a practical balance between board strength and installation convenience. Its lighter structure makes it suitable for ceiling systems and interior applications where easier handling is important. Contractors can move and install panels more efficiently, especially in projects with repeated ceiling work or large installation areas.

Better Moisture Resistance for Damp Interiors

This moisture resistant gypsum board is produced with a modified gypsum core and moisture-resistant facing paper. It is suitable for interior environments with higher humidity, such as bathroom ceilings, kitchen walls, laundry rooms, and service areas. It helps reduce the risk of swelling, surface weakness, and early maintenance compared with standard gypsum board.

Standard 4×8 ft Size for Project Use

The board is supplied in the common 1220×2440mm / 4×8 ft size, making it suitable for contractors, distributors, and building material wholesalers. This size is widely used in interior wall and ceiling systems and can be planned easily for container loading, warehouse storage, and project installation.

Moisture Resistant Technology

The moisture resistance of this board comes from controlled core modification during production. Water-repellent agents are added into the gypsum slurry to help reduce capillary water absorption inside the board structure. The moisture-resistant face and backing paper further improve the board’s performance in damp indoor conditions.

The 9.5mm board reaches a water absorption test value of 6.8%, which is significantly lower than ordinary gypsum board. This helps the panel maintain better dimensional stability and mechanical strength in environments where relative humidity may reach up to 90%, provided that the board is installed and finished correctly.

This board is moisture resistant, but it is not designed for long-term soaking, outdoor rain exposure, or direct wet shower zones without additional waterproofing treatment.

Technical Specifications

Recommended Applications

This 9.5mm lightweight moisture resistant gypsum board is suitable for damp interior areas where standard gypsum board may not be the best choice.

Recommended applications include:

• Bathroom ceiling systems

• Kitchen wall and ceiling areas

• Laundry room partitions

• Utility room wall lining

• Garage interior ceilings

• Hotel bathroom renovation

• Apartment interior fit-out projects

• Coastal residential interior projects

• Healthcare and commercial building interiors

For areas with frequent direct water contact, such as shower walls or heavy tiled wet zones, additional waterproofing membranes, cement board, or tile backer board may be required depending on the project design.

Market Demand and Supply Capabilities

Demand for lightweight moisture resistant gypsum board continues to grow in commercial real estate, healthcare buildings, hotel renovation, apartment projects, and coastal residential developments. In these projects, buyers are not only looking for a board with good moisture resistance. They also need stable supply, consistent quality, reliable packing, and clear export support.

As a moisture resistant gypsum board wholesaler, we support bulk purchasing, project supply, and OEM requirements. Our supply capability is suitable for contractors, building material distributors, importers, and developers who need consistent board quality for repeated project orders.

Installation and Handling Guidelines

For better performance, the board should be handled and installed correctly.

Technical recommendations:

• Store panels flat on level supports in a dry warehouse.

• Recommended warehouse relative humidity: ≤ 85%.

• Avoid direct sunlight, rain exposure, and wet floor contact.

• Allow 24–48 hours for jobsite acclimatization before installation.

• Install only when the ambient temperature is between 5°C and 40°C.

• Avoid prolonged humidity above 90% during installation.

• Use proper dust extraction or personal protection when cutting.

• Ensure the supporting T-bar grid or framing is level and rigidly fixed.

• Use suitable joint treatment, coating, and ventilation for bathroom or kitchen applications.

• Clean finished surfaces with neutral detergent only. Avoid abrasive or solvent-based cleaners.

Frequently Asked Questions

Is the 9.5mm moisture resistant gypsum board suitable for bathrooms?

Yes. It is suitable for bathroom ceilings and protected damp interior areas. It offers better moisture resistance than standard gypsum board. For areas with frequent direct water contact, additional waterproofing treatment is recommended.

How much lighter is this board compared with standard 12mm gypsum board?

With a weight of approximately 7.5 kg/m², this 9.5mm board is about 25% lighter than many typical 12mm gypsum boards. This helps reduce handling pressure and improve installation efficiency.

Can this board be used for ceilings?

Yes. The 9.5mm lightweight structure is suitable for many ceiling systems. Final use should be confirmed according to local framing spacing, ceiling design, and project requirements.

What are the recommended storage conditions?

Panels should be stored flat in a dry warehouse with relative humidity below 85%. Avoid rain, direct sunlight, wet ground, and long-term exposure to high humidity before installation.

Do you support wholesale and OEM orders?

Yes. We support wholesale supply, project orders, and OEM customization for moisture resistant gypsum board. Buyers can confirm size, thickness, edge type, packing, quantity, and destination port before quotation.