Name: Waterproof Gypsum Board Manufacturer in China | GXBM
Price: 100.00 USD
Availability: InStock

Product Overview

Waterproof Gypsum Board consists of an aerated gypsum core with water-repellent additives, encased in and firmly bonded to strong paper liners. The green paper surface helps identify the board as a wet-area gypsum board product.

This board is designed for interior wet area applications where reduced water absorption and improved moisture performance are required. It is suitable for wall and ceiling systems in kitchens, bathrooms, laundry rooms, basements and other humid indoor areas.

Product Composition

The board is made with a treated gypsum core and water-repellent additives to help reduce water absorption. Strong facing and backing paper liners are bonded to the core to support board strength, handling and installation performance.

Specifications

Product Name	Waterproof Gypsum Board
Core Type	Aerated gypsum core with water-repellent additives
Paper Color	Green
Available Sizes	1200×2000mm, 1200×2400mm, 1220×2440mm or customized according to customer requirements
Thickness	12mm, 12.5mm or customized according to customer requirements
Edge Type	Longitudinal edge: tapered; transverse edge: square
Application Area	Wet area interior wall and ceiling applications
Packing	Pallet packing or according to order requirements

Key Features

Water absorption rate tested at 5% according to the provided inspection report.
Water-repellent additives help reduce moisture absorption.
Green paper liners provide clear product identification.
Smooth surface suitable for finishing, painting and decoration.
Easy to screw, cut, handle and install in interior wall or ceiling systems.
Durable, flexible and long-lasting for suitable wet area applications.
Heat insulation and fire-resistant performance for building interior systems.

Application Scenes

Bathroom Walls

Kitchen Areas

Laundry Rooms

Basements

Partitions

Ceiling Systems

Inspection Data

Inspection Item	Inspection Result	Standard Indicator
Appearance Quality	No defects affecting the use	No defects affecting the use
Length Deviation	0 mm	-6~0 mm
Width Deviation	0 mm	-5~0 mm
Thickness Deviation	-0.2 mm	±0.6 mm
Diagonal Length Difference	2 mm	≤5 mm
Surface Density	8.5 kg/m²	≤12.0 kg/m²
Longitudinal Fracture Load	Average 536 N / Min. 520 N	Average ≥520 N / Min. ≥460 N
Transverse Fracture Load	Average 227 N / Min. 213 N	Average ≥200 N / Min. ≥180 N
Hardness	End 195 N / Edge 178 N	≥70 N
Impact Resistance	No radial cracks on the back of the plate	No radial cracks
Adhesion of Cover Paper to Core	No peeling of cover paper and core material	Covering paper and core material should not be peeled
Water Absorption Rate	5%	≤10.0%
Surface Water Absorption	147 g/m²	≤160 g/m²

Installation Notes

Waterproof gypsum board can be fixed to metal or timber framing systems with drywall screws. Tapered edges allow joints to be reinforced with joint tape and joint compound for a smooth finishing surface.

For wet area wall and ceiling systems, installation should follow suitable project requirements, joint treatment methods and local building practices. In areas with direct or continuous water exposure, additional waterproofing system design may be required.

Storage

Dry environment: Store gypsum boards in a dry, well-ventilated area to prevent moisture absorption and damage.
Flat surface: Lay boards flat on a level surface or pallets to avoid warping or bending.
Avoid direct ground contact: Use supports or pallets to keep boards off the floor and protect them from dampness.
Protect from weather: Keep boards covered if stored outdoors to shield them from rain or extreme weather.
Stack safely: Limit stacking height to prevent crushing or damage to lower boards.

Use Limitations

Waterproof gypsum board is designed for wet area interior applications with reduced water absorption. It should not be treated as a substitute for a complete waterproofing system in areas with continuous water immersion, exterior exposure or severe water pressure.

Packaging & Loading

Waterproof gypsum board can be packed on pallets with protective covering or according to order requirements. Please provide the required size, thickness, quantity and destination port, and our team will provide packing and loading information for your quotation.

FAQ

What is waterproof gypsum board used for?

Waterproof gypsum board is used for wet area interior wall and ceiling systems, such as bathrooms, kitchens, laundry rooms, basements and other humid indoor areas.

What is the difference between waterproof gypsum board and regular gypsum board?

Waterproof gypsum board uses water-repellent additives and green paper liners to reduce water absorption. Regular gypsum board is mainly used in dry interior spaces.

Is waterproof gypsum board suitable for direct water exposure?

The board has reduced water absorption and is suitable for wet area interior applications. For areas with direct or continuous water exposure, a complete waterproofing system may be required according to project conditions.

What sizes and thicknesses are available?

Available sizes include 1200×2000mm, 1200×2400mm and 1220×2440mm. Thickness options include 12mm and 12.5mm, and customized options may be discussed according to customer requirements.

How can I get a quotation?

Please send the required size, thickness, quantity, destination port and packing requirements. GXBM will provide quotation support based on your order details.