Class A1 MgO Board for HVAC Duct from China Manufacturer

Product Detail
Specifications
Applications
FAQ

01 / Product Positioning

Class A1 MgO Board for HVAC Duct

The board is used as a duct panel or lining component within fabricated HVAC duct systems. It is processed and assembled with flanges, connectors, sealants, reinforcement and supports to form the complete duct section.

02 / Application-specific value

Advantages for HVAC Duct

Duct Panel & Lining Component

Serves as duct panel or lining material within fabricated HVAC duct systems for air distribution.

Structural Assembly Integration

The low-chloride magnesium-sulfate system helps reduce halogen reversion, moisture uptake and metal-corrosion risk, with a contractual 100% no-halogen-reversion commitment.

Customized Configuration

Includes configurable duct dimensions, pressure class, board position, insulation requirements, flange system, reinforcement spacing, and support arrangement.

Fire & Smoke Safety Compliance

Designed for integration into fire and smoke-control duct systems, meeting applicable safety standards.

Inorganic sulfate MgO core, reinforcing layers and surface options for fabricated HVAC duct construction

03 / Composition and surface options

Inorganic core, reinforcing layers and finishing surfaces

The MgO panel forms part of a fabricated duct construction. Panel properties support non-combustibility and processing, while air leakage, pressure resistance, thermal behavior and fire resistance remain system-level results.

04 / Key features

Performance defined for the confirmed model

Feature	Final Product Information
Reaction to Fire	A1 non-combustible; the fire-resistance period of the complete product or system remains subject to assembly validation.
Chloride Ion	≤0.01%; the low-chloride magnesium-sulfate system helps reduce halogen reversion, moisture uptake and metal-corrosion risk, with a contractual 100% no-halogen-reversion commitment.
Indoor environment and configurable properties	Formaldehyde-free, asbestos-free and AQ1 smoke-toxicity classification. Flexural strength and screw-holding can be customized by thickness, product construction and project requirements, subject to confirmed model data.
Product boundary	A1 panel classification does not establish duct pressure class, leakage class, thermal resistance or system fire rating. Those values require validation of the complete duct construction.

Model-specific dataPerformance follows the technical data and reports for the confirmed model.

System-level boundaryPanel data does not replace complete-wall validation.

Document alignmentSample name, thickness, density and surface should match the supplied model.

05 / Specifications and custom options

Standard supply range with configurable mechanical performance

Standard supply range and custom options of Class A1 MgO Board for HVAC Duct: panel size, thickness, surface, color, density and mechanical performance

Item	Standard Range or Customization
Panel Size	1220×2440, 1220×2700, 1220×3050 mm
Thickness	8, 10, 12 and 14 mm.
Surface	Non-woven or sanded.
Color	Regular white; gray, yellow and red by discussion
Apparent Density	0.95-1.15 g/cm³
Flexural strength	Customizable by thickness, construction and project requirements; subject to confirmed model data.
Screw holding	Customizable by thickness, construction and project requirements; subject to confirmed model data.
Reaction to fire	A1
Smoke toxicity	AQ1
Chloride ion	≤0.01%
Anti-halogen	A 100% no-halogen-reversion commitment may be written into the contract, with threefold compensation applied according to the agreed terms if verified non-compliance occurs.
Formaldehyde emission	Formaldehyde-free.

06 / Common board selection comparison

Choose by project priorities, not by one claim

When comparing metal-duct enclosure boards, calcium-silicate duct boards or other inorganic duct panels, evaluate non-combustibility, thickness and weight, cutting and grooving quality, edge integrity, moisture stability and compatibility with flanges and sealants.

Common board selection comparison for HVAC duct: gypsum board, fiber cement board, fire-retardant plywood and fire-retardant wood board versus sulfate MgO lining board

Common Board	Fire Rating	Typical Considerations	Selection Value of Sulfate MgO Lining Board
Gypsum Board	A2 (combustible paper facing)	Moisture-sensitive; may soften or powder in damp conditions; paper facing may delaminate at high temperature.	A1 non-combustible; moisture and mould resistant; maintains better integrity at high temperature; good impact resistance.
Fiber Cement Board	A1	Heavy and brittle; prone to cracking; potential metal-corrosion concerns.	Tougher and lighter; good thermal stability; low-corrosion formulation; lower shrinkage.
Fire-retardant Plywood	B1 flame-retardant	Combustible; may delaminate when damp; fire-retardant performance may decline; formaldehyde concern.	A1 non-combustible; moisture and mould resistant; no loss of fire-retardant treatment; formaldehyde-free; impact resistant.
Fire-retardant Wood Board	B1 flame-retardant	Combustible; moisture-sensitive and prone to mould; fire-retardant additives may age.	A1 non-combustible; stable inorganic substrate; reliable performance in humid and high-temperature conditions.

Comparison statements must be checked against the actual models and equivalent test conditions. No competitor brand is implied.

07 / Applications and use boundaries

An A1 non-combustible MgO panel for fabricated HVAC duct constructions.

Suitable for HVAC duct fabricators, MEP contractors, fire-protection system suppliers and project procurement teams requiring non-combustible board materials and repeatable workshop processing.

For actual projects, A1 panel classification does not establish duct pressure class, leakage class, thermal resistance or system fire rating. Those values require validation of the complete duct construction.

Suitable Use

Dry interior, non-load-bearing partition lining with a defined wall build-up.

Requires Assembly Validation

Fire-resistance period, acoustic performance, impact resistance and fixture capacity.

Not a Standalone Solution

Load-bearing walls, continuous immersion, direct exterior exposure or heavy fixtures fixed only to the panel.

08 / Quality control, packing and delivery

Control from production batches to export protection

Massif applies process control to raw-material batches, formulation, forming, reinforcement placement, curing, cutting, panel faces, edges and packing. A reference sample can be approved and retained before mass production, followed by checks against the confirmed specification.

Production control of Class A1 MgO HVAC duct board: raw materials, forming, curing, cutting and panel finish — **Production Control**Raw materials, forming, curing, cutting and panel finish.

Model-specific technical documents and test evidence for Class A1 MgO HVAC duct board — **Model-specific Evidence**Documents should identify the model, thickness, density, surface and test scope.

Export packing protection for Class A1 MgO HVAC duct board corners, edges, surfaces and moisture-sensitive interfaces — **Export Protection**Corner, edge, surface and moisture-sensitive interface protection.

09 / Related products, thickness reference and FAQ

Different MgO board roles within the same project

MgO Board Application Thickness Reference

Application or Product	Client-confirmed Thickness Reference
Interior Partition	8-18 mm
Curtain Box	15 mm, 18 mm
Ceiling	8 mm, 9 mm, 10 mm, 12 mm
Fire-rated Air Duct	8 mm, 10 mm, 12 mm, 14 mm
Floor Slab	20-30 mm
Container or Integrated Housing Flooring	15 mm, 18 mm
Substrate for Ceramic-aluminium Acoustic Panel	14 mm
Sound Insulation Board	10 mm, 12 mm
Sanded Wall Board for Lamination	5 mm, 6 mm, 8 mm, 9 mm

These thicknesses support initial matching by application. Board construction and performance requirements vary by use; final supplied model, thickness and technical data remain subject to the applicable product confirmation.

Does "chloride-free" mean a zero chloride-ion result?

The product uses a low-chloride magnesium sulfate system to distinguish it from conventional chloride-based formulations. The confirmed technical value is chloride-ion content of no more than 0.01%; formal technical content uses this measurable value rather than claiming absolute zero chloride.

Why is this board suited to light-gauge steel-framed partitions?

Its A1 classification provides a non-combustible lining layer, while the low-chloride sulfate system helps reduce chloride-related risk around studs and screws. E0 formaldehyde emission, asbestos-free composition, and customizable flexural and screw-holding performance support different wall designs.

Can an 18 mm panel support 90 kg on any partition wall?

No. The 90 kg value is a hanging capacity that the 18 mm panel can reach under the corresponding validated conditions. Allowable fixture load also depends on fasteners, framing, edge distance, panel layers and the complete wall construction. Heavy equipment should connect to framing or designed reinforcement.

How is the 100% no-halogen-reversion commitment documented?

The mutually agreed quality requirement, applicable conditions and corresponding remedy may be included in the sales contract. Implementation remains subject to the contract terms, supplied model and applicable test or assessment conditions.

Does E0 mean that the product has absolutely zero formaldehyde emission?

No. E0 is a formaldehyde emission grade and does not mean absolute zero emission. Website copy, technical data and test documents should consistently state "Formaldehyde emission grade: E0."

What are the flexural strength and screw-holding values?

Both properties can be customized according to thickness, wall construction, framing and fastening requirements. Final values follow the technical data and test evidence for the confirmed model.

Does an A1 panel directly establish the fire-resistance period of the wall?

No. A1 describes the panel's reaction to fire. Integrity and insulation of the complete wall depend on board layers, framing, infill, joints, fastening and penetrations and require applicable assembly evidence or an approved design.

Jiangsu Massif Building Materials Co., Ltd.

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Class A1 MgO Board for HVAC Duct

Class A1 MgO Board for HVAC Duct

Advantages for HVAC Duct

Duct Panel & Lining Component

Structural Assembly Integration

Customized Configuration

Fire & Smoke Safety Compliance

Inorganic core, reinforcing layers and finishing surfaces

Performance defined for the confirmed model

Standard supply range with configurable mechanical performance

Choose by project priorities, not by one claim

An A1 non-combustible MgO panel for fabricated HVAC duct constructions.

Control from production batches to export protection