Fuqiang PU edge-sealed rock wool wall panels are designed for industrial and commercial building envelopes that require rock wool insulation with protected panel edges and coordinated joints. Buyers can specify the panel thickness, steel facing gauge, coating, color, joint type and cut length. The correct configuration should be selected against the project’s fire, thermal, acoustic, corrosion and installation requirements. Send drawings, wall quantities, required test standards and delivery information for a technical review and factory quotation.
The PU edge-sealed rock wool sandwich panel is a high-performance structural wall panel combining a non-combustible rock wool insulation core with polyurethane edge sealing on all four sides. The panel face is constructed from color-coated steel with high-temperature galvanizing, while the back layer uses color-coated galvanized sheet steel. This composite structure delivers reliable thermal insulation, Class A fire performance, moisture resistance, and structural rigidity within a single prefabricated panel unit.
Designed for demanding construction environments, this panel provides effective thermal insulation to support stable interior temperatures, a non-combustible core that meets Class A fire performance requirements, and a tongue-and-groove joint system that reduces air infiltration and supports weather-tight installation. The polyurethane edge seal prevents moisture from penetrating the panel edges, extending service life and maintaining insulation integrity over time.
This panel is widely used in industrial facilities, warehouses, pharmaceutical workshops, food processing plants, electronics cleanrooms, and commercial buildings where fire safety, thermal control, and clean interior conditions are required. Standard panel thickness ranges from 50 mm to 200 mm, with an effective width of 1,000 mm. Custom lengths, thicknesses, coatings, and colors are available. Matching trims, corners, and installation accessories are supplied as a complete system. Contact Fuqiang to request a technical quotation.
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Panel Construction
The PU edge-sealed rock wool sandwich panel is built as a three-layer composite system. The upper face consists of color-coated steel processed with high-temperature galvanizing, providing weather resistance and a durable decorative surface. The insulation core is composed of continuous rock wool, oriented to maximize thermal performance and structural contribution. The back layer uses color-coated galvanized sheet steel. All four panel edges are sealed with polyurethane to close the core material against moisture ingress, dust infiltration, and edge deformation during storage and installation.
Surface Material and Coating
The steel facing is available with multiple surface coatings to suit different project environments and regional climate requirements. Coating options include fluorocarbon PVDF coating, SMP coating, HDP coating, and polyester PE coating. Each coating type provides a different level of UV resistance, color retention, corrosion resistance, and surface hardness. Available panel colors include white ash, sea blue, iron gray, and silver gray, with custom colors supported based on project specifications or buyer requirements.
Rock Wool Core Material
The insulation core is rock wool, a mineral fiber material manufactured from volcanic basalt. Rock wool is classified as non-combustible and achieves Class A fire performance, making this panel suitable for buildings with strict fire safety requirements. In addition to fire resistance, rock wool provides effective thermal insulation to reduce heat transfer through the wall assembly, and contributes to sound attenuation between interior and exterior environments. The rock wool core also has inherently low water absorption, which helps maintain insulation performance in humid operating conditions.
Polyurethane Edge Sealing
The defining structural feature of this panel series is the polyurethane edge seal applied to all exposed panel edges. This seal prevents the rock wool core from absorbing moisture at the panel perimeter, which is the most vulnerable point in a conventional rock wool sandwich panel. The PU edge seal also improves the panel’s dimensional stability, protects the panel during transport and handling, and supports a tighter, more consistent joint line during installation. This design addresses a known limitation of unsealed rock wool panels in humid or outdoor-exposed applications.
Joint System
Panels are connected using a tongue-and-groove joint system. This interlocking profile allows adjacent panels to align precisely during installation, reduces gaps at the joint line, and contributes to air tightness and thermal continuity across the wall surface. Three joint configurations are available: seamless lap, seam lap with a 20 mm decorative insert, and standard lap connection. The horizontal mounting system uses hidden stitching with concealed fasteners, keeping the panel face clean and reducing potential corrosion points at screw penetrations. A cavity design within the joint profile is incorporated to prevent capillary water movement.
Dimensions and Customization
The standard effective panel width is 1,000 mm. Standard thickness options are 50 mm, 75 mm, and 100 mm. Customized thickness from 150 mm to 200 mm is available for projects requiring enhanced thermal insulation or fire compartmentation. Panel length can be produced to project-specific requirements. Surface coating type, color, steel gauge, joint configuration, and panel profile can all be specified at the time of order. OEM and private-label production is supported based on customer drawings or technical specifications.
Accessories and Complete System
Fuqiang supplies matching installation accessories to complete the wall system, including corner trims, window and door frame trims, starting pieces, closing pieces, joint covers, and connecting brackets. Sourcing panels and accessories from a single manufacturer reduces procurement complexity, ensures dimensional compatibility, and supports faster on-site installation. Technical drawings and installation guidance are available upon request.
| Product Type | Effective Width | Panel Thickness | Core Material | Edge-Sealing Material | Joint Options |
| Polyurethane Edge-Sealed Rock Wool Sandwich Panel | 1,000 mm | Standard: 50 / 75 / 100 mm; Customized: 150 / 200 mm | Rock wool | Polyurethane (PU) | Seamless lap / Seamed lap |
The rock wool insulation core is a mineral fiber material classified as non-combustible, achieving Class A fire performance. This makes the panel suitable for industrial, pharmaceutical, and public buildings where fire safety compliance is a project requirement.
All four panel edges are sealed with polyurethane to prevent moisture from entering the rock wool core at its most exposed points. This edge sealing improves long-term insulation integrity, extends panel service life, and reduces the risk of edge delamination or swelling in humid environments.
The continuous rock wool core helps reduce heat transfer through the wall assembly, supporting more stable interior temperatures across varying external climate conditions. This is particularly beneficial for temperature-sensitive industrial and food processing environments.
The interlocking tongue-and-groove joint system and horizontal hidden fastener mounting reduce air infiltration at panel connections, maintain a clean exterior surface, and contribute to a more weather-resistant wall assembly. The cavity design within the joint profile also prevents capillary moisture movement.
Surface coatings including PVDF, SMP, HDP, and polyester PE provide different levels of UV resistance, corrosion protection, and color retention. Standard colors include white ash, sea blue, iron gray, and silver gray, with custom colors available to meet regional market or project design requirements.
The 1,000 mm effective panel width reduces the total number of panels and joints required per wall area. Matching corners, trims, starting pieces, and closing pieces are available as a coordinated system, simplifying on-site procurement and helping contractors reduce installation time and labor costs.
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For a project-specific selection and quotation, include the information below. Fuqiang will confirm the available configuration, supporting documents, production plan and packing for the exact order.
The edge-sealing detail protects and stabilizes panel edges and supports a coordinated joint. The exact section should be reviewed with the panel thickness and installation detail.
Ask for reports applicable to the exact core, thickness, facing and joint configuration being quoted. Fuqiang will confirm the available documents rather than applying one result to every configuration.
Joint details and facing gauges can be reviewed against the project drawings, performance requirements and production range before the order is confirmed.
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