GRC Manufacturer Core Production Process Analysis: Qinglong's 28 Years of Craftsmanship and Innovation

The texture and lifespan of GRC lie hidden in the details of every production process. As glass fibre reinforced concrete, GRC's production process directly determines the product's strength, durability, forming effect and artistic expressiveness, and it is also a reflection of the core competitiveness of professional GRC manufacturers. Qinglong has been deeply engaged in the GRC field for 28 years, blending traditional craftsmanship with modern technology to develop a mature and complete GRC production process system, becoming an industry benchmark and providing high-quality GRC products for all kinds of construction projects.

## Base Material Proportioning Process: Laying a Solid Foundation for Quality????

High-quality GRC products begin with scientific material proportioning. As an enterprise that participated in formulating the GRC industry standards, Qinglong strictly complies with the “Technical Standard for Building Application of Glass Fibre Reinforced Cement (GRC)” and has established a refined material proportioning system. Raw materials such as high-grade white cement, alkali-resistant glass fibre and premium quartz sand are selected, and automated batching systems precisely control the proportion of each component, ensuring that the flexural strength of GRC products reaches over 20MPa to meet the structural safety requirements of large buildings. Proportions can be customised and adjusted to meet the needs of different projects — for example, optimising the anti-corrosion formula for seaside projects or enhancing freeze-thaw resistance for projects in low-temperature regions — so that GRC products adapt to all kinds of service environments.

## Mould Making and Forming Process: Turning Creative Designs into Reality

The core advantage of GRC lies in its exceptional plasticity, which relies on advanced mould and forming processes. Qinglong has a professional mould R&D and manufacturing team that uses high-quality mould materials such as GRP and silicone based on design drawings to accurately replicate complex shapes. Whether double-curved curtain wall panels, openwork carved components or large-scale artistic sculptures, design details can be perfectly presented. For forming, a combination of spray-up and premix processes is adopted: automated spray-up production lines are used for large-area flat panel components to ensure even fibre distribution, while manual premix forming is used for irregularly shaped components to precisely control thickness and form. It was through this process that the “Chinese Red Lantern” shaped GRC panels for the Wuhan Han Show Theatre achieved complex thin-wall shapes at 15mm, setting a new domestic technical record at the time.

## Surface Treatment and Quality Control Processes: Enhancing Product Texture

Detail craftsmanship determines the final appearance of GRC products. Qinglong's GRC surface treatment processes cover a variety of forms such as stone imitation, wood imitation and coloured spraying. Through natural mineral pigments and fine polishing techniques, a fidelity of over 95% is achieved, with textures comparable to natural stone and wood. Meanwhile, a whole-process quality control system has been established, covering raw material inspection, sampling checks during production and finished product testing before delivery. Every stage is equipped with professional testing equipment and technicians, focusing on key indicators such as the strength, flatness and durability of GRC components, and substandard products are firmly prevented from leaving the factory. In addition, steam curing is adopted to accelerate the strength development of GRC, ensuring stable performance at delivery and long-term resistance to cracking and ageing after installation.

The maturity and innovation of GRC production processes are the core expression of a GRC manufacturer's professional strength. Through 28 years of unrelenting dedication, Qinglong has integrated scientific proportioning, precise forming, meticulous treatment and strict control into every process, which not only guarantees the structural safety and durability of GRC products but also maximises their artistic expressiveness. Only by choosing a GRC manufacturer with advanced processes can architectural decoration withstand the test of time while displaying unique artistic value — and Qinglong's process system undoubtedly provides a reliable guarantee for this goal.