How to Maintain GRC? Qinglong Group's 28 Years of Maintenance Experience and Scientific Maintenance System Explained

The maintenance of GRC products is a key link in ensuring their long-term performance and aesthetics; scientific and proper maintenance can easily enable them to exceed their 50-year design service life. As an industry-leading enterprise with 28 years of deep expertise in the GRC field, Qinglong Group has established a complete scientific GRC maintenance system of 'prevention first, tiered maintenance, and professional operation' based on long-term tracking data from national-level landmark projects such as the Wuhan Han Show Theatre and the Hainan International Convention and Exhibition Center. GRC maintenance is not simply cleaning and repair, but a systematic project requiring customized plans based on differences in component location, service environment, and surface treatment.

The primary principle of GRC maintenance is preventive maintenance. Qinglong Group recommends establishing a maintenance file immediately upon completion of a new project, recording basic data such as photos of the initial state and construction records. A regular inspection system is essential; we recommend a model of 'quarterly simple checks + annual professional testing': quarterly checks of sealant aging at joints and the degree of surface contamination, and annual hollowing detection by a professional team using the tapping method, together with measurement of deformation data at key locations. In the Nanning Liyuan Hotel project, thanks to this preventive maintenance, the GRC façade still maintained an integrity rate of over 95% after 10 years of use.

Different parts have different maintenance priorities. For exterior wall GRC curtain walls, focus should be on the waterproofing system and connection nodes: regularly check that the sealant's elastic recovery rate (which should be greater than 80%) is up to standard, and clear the drainage holes to prevent blockage. Indoor GRC components mainly require attention to surface cleaning and the repair of minor damage. Landscape GRC features require attention to foundation stability and the condition of the surface protective layer. Qinglong Group customizes a maintenance manual for each project, clearly defining the inspection cycle, inspection methods, and handling standards for each part.

Professional maintenance operations require standardized guidance. Qinglong Group has developed dedicated GRC maintenance materials and tools, such as neutral cleaners, flexible sealants, and special repair mortar. Maintenance work should avoid extreme weather, and the application temperature should be between 5°C and 35°C. For special surface treatments (such as imitation stone and exposed aggregate), targeted care plans are required. Through a scientific maintenance system, the actual service life of GRC can far exceed the design benchmark, achieving optimal full life-cycle economic benefits.