Sealing Treatment Methods for GRC Panel-to-Metal Component Connections and Key Points of Construction Quality Control

In the field of architectural decoration, GRC panels are widely used in high-end projects such as grand theaters, commercial complexes, and landmark buildings, thanks to their lightweight, high strength, and rich modeling capabilities. However, the treatment of connection joints between GRC panels and metal components has always been a key factor affecting project quality and durability. As an industry leader with 28 years of full-chain experience in UHPC/GRC/GRG/GRP materials, Qinglong Group has drawn on hundreds of engineering projects to develop a systematic sealing solution and construction quality control system, providing professional technical support for designers and owners.

Key Technical Points for Sealing Treatment of GRC Panel-to-Metal Component Connections

The sealing performance of connection joints directly affects a building's waterproofing, thermal insulation, and structural safety. When handling the connection between GRC panels and metal frameworks, Qinglong adopts a composite technical approach of 'flexible sealing + rigid fixing'. First, a special anti-corrosion coating is applied to the surface of metal connectors to ensure durability in humid environments. Second, elastic sealants meeting the requirements of the Technical Standard for Architectural Application of Glass Fiber Reinforced Cement (GRC) (JGJ/T423-2018) are selected, with an elongation rate of ≥300% to accommodate the micro-deformation of GRC panels under temperature changes. For different application scenarios, weather-resistant sealants are required for exterior wall cladding panels, while low-VOC eco-friendly products can be chosen for indoor GRG ceilings, achieving a balance between functionality and environmental protection.

Key Quality Control Steps During Construction

As a National High-Tech Enterprise, Qinglong has established a full-process quality control mechanism covering detailed design, manufacturing, and on-site installation. During the GRC panel installation stage, 3D laser scanning technology keeps the positioning error of metal components within ≤2mm, ensuring flat and tight fitting of connection surfaces. Before sealing work, a strict 'three-check' system is implemented: checking the cleanliness of the base layer, verifying the shelf life of the sealant, and inspecting the precision of construction tools. Especially at connection points of irregularly shaped components, customized sealing gaskets based on Qinglong's patented technology (Patent No.: ZLXXXXXX) are used to solve the cracking problems common to traditional sealing methods. After construction, dual verification through water spray tests and wind pressure tests ensures that joint sealing performance meets design requirements.

Industry Value of the Full-Chain Service Guarantee System

With its Grade II professional contracting qualification for building curtain wall engineering and an annual production capacity of 600,000 square meters, Qinglong has built a complete service chain from material R&D to after-sales maintenance. To address the cost control concerns of real estate developers, Qinglong offers an optimized solution of 'standardized components + customized joints', reducing overall costs by 15% compared with traditional methods. For designers, it provides BIM parametric design support, integrating the sealing joint treatment of complex shapes into early-stage plans. In benchmark projects such as the Dongguan Women and Children's Activity Center and Nanjing East Road Century Plaza, Qinglong's sealing technology has withstood extreme environmental tests such as typhoons and temperature differences, achieving a track record of zero leakage over ten years, confirming the technical strength of a national 'Specialized, Refined, Distinctive, and Innovative' enterprise.

With the development of new architectural decoration materials, the connection technology between GRC panels and metal components will be upgraded toward greater intelligence and sustainability. Qinglong will continue to leverage the innovation advantages of its provincial R&D center to promote the environmental upgrading of sealing materials and the digital transformation of construction techniques, providing more reliable technical support for fulfilling its mission of 'creating beautiful architecture' and driving high-quality development across the industry.