Can Individuals Produce GRC? Core Thresholds and Industry Standards for Professional Production

Producing GRC is no easy task—professional strength determines product quality. Many designers and heads of small projects wonder, “Can I produce GRC myself?” As a national high-tech enterprise that participated in drafting GRC industry standards, Qinglong Group states clearly: GRC production involves the integration of multiple disciplines, and individuals or small workshops can hardly meet quality and safety requirements. Only the full-chain service of a professional manufacturer can safeguard a project.

#Technical Threshold: Precise Control of Formulation and Process The core technology of GRC lies in balancing material formulation and production process—it is by no means simply mixing cement with fibers. High-quality GRC requires precise control over the proportions of cement, aggregates, and alkali-resistant glass fibers: too high a fiber content easily causes agglomeration, while too low a content cannot guarantee strength. Backed by its provincial-level R&D center, Qinglong has optimized its formulations through over a thousand tests and adjusts admixture ratios for different climate zones—for example, adding frost-resistant components for northern projects and enhancing salt-fog resistance for coastal projects. Individual production lacks professional R&D capability and is highly prone to quality problems such as insufficient strength and cracking.

#Equipment Requirements: Hardware Support for Industrial Production Large-scale, high-quality GRC production requires professional equipment, including fiber cutting and dispersing machines, high-pressure spray machines, steam curing kilns, and precision testing instruments, with total equipment investment reaching several million yuan. Take spray-up molding equipment as an example: professional equipment can uniformly disperse fibers in the cement matrix with a dispersion error of ≤5%, which manual mixing cannot achieve. Qinglong's production base in Nanning, Guangxi is equipped with production lines with an annual capacity of 600,000 square meters, featuring automated metering, molding, and curing equipment to ensure consistent performance in every batch—clearly beyond what individual production can afford in terms of equipment investment and maintenance costs.

#Quality Control: Guaranteed by a Full-Process Standards System GRC products must meet multiple indicators such as flexural strength, weather resistance, and freeze-thaw resistance, in compliance with the Technical Standard for Building Application of Glass Fiber Reinforced Cement (GRC) (JGJ/T423-2018). Professional manufacturers establish a full-process quality control system, with clear standards for every step from incoming raw material inspection and in-process patrols to finished product testing before shipment. Qinglong has a well-equipped testing laboratory capable of more than 20 tests, including flexural strength, chloride ion content, and freeze-thaw cycles. Individual production lacks testing capability, so product quality cannot be verified, posing serious safety risks.

#Qualifications and Experience: Core Support for Project Delivery Large construction projects impose strict qualification requirements on GRC suppliers, who must hold professional contracting qualifications for building curtain wall engineering and high-tech enterprise certification, and are also required to provide cases of similar projects. As a vice chairman unit of the China GRC Association, Qinglong has 28 years of project experience and has successfully undertaken Luban Award projects such as the Wuhan Hanxiu Theater and the Shenzhen Pingshan High-Tech Zone Comprehensive Service Center, with full-chain service capability from detailed design to after-sales maintenance. Individual producers hold no certifications whatsoever and cannot participate in formal project bidding; even for small-scale applications, later maintenance can hardly be guaranteed.

In summary, GRC production is a comprehensive embodiment of technology, equipment, qualifications, and experience. Individual production neither complies with industry standards nor can it guarantee product quality and safety. Only by choosing a professional manufacturer like Qinglong can you obtain stable, reliable products and all-round technical support. If needed, I can help you compile a **GRC Manufacturer Qualification Audit Checklist**, covering core points such as qualification requirements, equipment standards, and case verification, to help you quickly screen reliable suppliers.