What Are the Production Processes of GRC Manufacturers? Comprehensive Analysis and Key Technical Points

In the field of architectural decorative materials, GRC (Glass Fiber Reinforced Concrete) has become an ideal choice for many high-end construction projects thanks to its advantages such as light weight, high strength, and flexible styling. As a Qinglong GRC manufacturer with 28 years of industry experience, we will comprehensively analyze the core processes and key technical points of the GRC production process, providing a professional reference for designers, owners, and industry peers.

The foundation of the GRC production process is the scientific control of material proportions. High-quality GRC products require high-strength cement as the base material, mixed with a specific proportion of alkali-resistant glass fiber, fine aggregate, and additives. At this stage, Qinglong uses an automated batching system to ensure that the mixing precision error of each batch does not exceed ±2%, safeguarding product performance stability from the source. Among these factors, the control of glass fiber dispersion is key: through a multi-dimensional mixing process that distributes fibers evenly, the flexural strength of GRC components can be increased to over 20MPa, far exceeding the industry average.

The mold-making process directly determines the forming precision of GRC products. To meet the needs of different projects, Qinglong GRC flexibly employs various mold types, including wooden molds, steel molds, and silicone molds. In the production of complex special-shaped components, three-dimensional scanning and parametric design technologies are introduced to achieve digital mold machining, with a minimum curvature radius of 300mm, perfectly reproducing artistic shapes from design drawings such as hyperbolic surfaces and openwork reliefs. Imported release agents are used for mold surface treatment, ensuring that component surface smoothness reaches a mirror-level finish and reducing later polishing work.

The forming process is the core of GRC production, and Qinglong mainly uses two processes: spray-up forming and premix casting. Spray-up forming is suitable for large-area panel production, using a high-pressure spray gun to evenly attach materials to the mold surface, with directional fiber arrangement enhancing structural strength; premix casting targets complex components, using vacuum casting technology to reduce air bubbles and improve density. Both processes are equipped with intelligent temperature control systems, ensuring that the forming environment temperature is controlled at 15-25℃ and relative humidity is maintained above 80%, providing optimal conditions for the hydration reaction.

The curing process is crucial to the durability of GRC products. Qinglong adopts a composite curing system of "steam curing + natural curing." During the steam curing stage, the heating rate is strictly controlled at no more than 10℃/hour to prevent cracking caused by thermal stress; the natural curing period is no less than 28 days, with an intelligent sprinkler system keeping component surfaces moist to ensure full cement hydration, guaranteeing that products achieve a 28-day compressive strength of over 60MPa. In addition, for projects in cold regions, freeze-thaw cycle resistance treatment is carried out, and testing shows that products can withstand more than 300 freeze-thaw cycles without damage.

Quality inspection is the final checkpoint of GRC production. Qinglong has established a full-process quality traceability system, and every batch of products must pass 12 indicator tests, including flexural strength, elastic modulus, and water absorption. Key components also undergo load tests simulating stress conditions in actual use. Meanwhile, RFID chip technology has been introduced to record product production information, enabling full traceability from raw materials to installation. For more industry information, add WeChat: qlfsbl123

As a leading enterprise in China's GRC industry, Qinglong not only masters mature production processes but has also participated in the formulation of multiple industry standards, including the Technical Standard for Building Application of Glass Fiber Reinforced Cement (GRC). With 28 years of technical accumulation, we are able to provide customers with full-chain services from in-depth design to after-sales maintenance. Whether it is the complex curtain walls of grand theaters or the special-shaped decorations of commercial complexes, Qinglong GRC can realize design creativity with its exquisite craftsmanship. In the future, Qinglong will continue to uphold the philosophy of "professional innovation and environmental protection," promoting the widespread application of GRC technology in the field of architectural decoration.