Magnesium oxide board vs sandwich panel: two roles, one material family
Buyers confuse the board and the sandwich panel more often than any other distinction on this site, because the same material name appears in both roles. This page separates the roles; the standalone board's specifications are stated in the section below, as the product page lists them, and the same table appears on the magnesium oxide board page.
Diagram: core and joint arrangement as listed for this model. This is a diagram, not a photograph of a finished panel.
Evidence strip
- Brand established 31 October 2012, according to the company profile.
- Jihua Laboratory project: 40,000 m², sulfomagnesium panels, as listed in the source site's project listing.
- Guangzhou Quaker project: 35,000 m², magnesium-oxide rock wool panels and hollow magnesium-oxide panels, as listed in the source site's project listing.
- Dongpeng Changsha base: 50,000 m², stainless-steel magnesium-oxide cleanroom panels, as listed in the source site's project listing.
- Certificates available upon request. No certificate number or issuing body is stated on this site.
Send your core, size and room use — get a magnesium-panel selection reply
Role one: the board layer and core inside a sandwich panel
Inside a sandwich panel, a glass-magnesium board serves as a layer or a core component. The handmade MgO rock wool panel's layer sequence shows the role clearly: an upper fire-resistant glass-magnesium board, a fire-resistant glass-magnesium keel, and a lower fire-resistant glass-magnesium board frame the rock wool filling, between steel faces. In that role, the board is a component, and the panel's specification — width, thickness, joint, and selling points — belongs to the panel, not to the board layer alone.
The machine-made hybrid shows the other component role: a hollow glass-magnesium board filled with rock wool, as a core combination inside a tongue-and-groove panel. Again, the panel's specification belongs to the panel. A buyer who asks for the board layer's thickness inside a panel is asking a different question from a buyer who asks for a standalone board, and the inquiry should state which question is being asked.
Role two: the standalone raw board
As a standalone product, the hollow glass-magnesium board is the only independent board product on this site. Its material composition, as listed, is magnesium oxide, glass-fibre mesh, perlite, and non-toxic additives, with a hollow core structure that keeps the board light. Lairun lists its uses as cleanrooms, wall partitions, ceilings, floor bases, and prefabricated buildings.
The standalone board's specifications, as the product page lists them, are stated in the table below; the same table appears on the magnesium oxide board page.
| Specification | Product page lists |
|---|---|
| Thickness | 49 / 74 / 99 mm |
| Size | 1200×2400 mm / 1220×2440 mm |
| Fire rating | A1 |
| Density | 700–950 kg/m³ |
| Moisture absorption | ≤8% |
| Bending strength | ≥12 MPa |
| Thermal conductivity | ≤0.055 W/(m·K) |
| Sound insulation | ≥45 dB, varying with thickness |
| Asbestos content | 100% asbestos-free |
How to choose between the roles
Choose the standalone board when the project needs a board: a board product, cut and fixed as a board, for one of the listed uses. Choose a sandwich panel when the project needs a composite panel: face sheets, core, and joint, for a cleanroom wall or ceiling, with the panel's listed width, thickness, and joint. If the project needs both — boards in one place and panels in another — state both, separately, in the inquiry, with separate confirmations for each.
Before ordering, confirm the minimum order quantity and lead time for this model. Certificates are available upon request; please ask for the certificate list for this model. Confirm the applicable humidity range for this model by inquiry, as no humidity figure is stated on this site.
Company: Foshan Lairun New Building Materials Co., Ltd.. Address: Nanhai National Eco-Industrial Park, Danzao Town, Nanhai District, Foshan, Guangdong, China. Phone: +86 13929918930. Email: [email protected]. Before ordering, confirm the minimum order quantity and lead time for this model. Certificates are available upon request. Please ask for the certificate list for the model you are selecting.