Do GRC Products from Different Manufacturers Differ in Fire Performance?

In the field of architectural decoration materials, GRC (Glass Fiber Reinforced Concrete) is a new material combining design flexibility with structural stability, and its fire performance has always been a core concern for designers, owners, and contractors. Do GRC products from different manufacturers differ in fire performance? As an industry leader with 28 years of full-chain experience in UHPC/GRC/GRG/GRP materials, Qinglong Group will provide an in-depth analysis of this key issue from the dimensions of material formulation, production processes, and testing standards.

### I. Core Factors Affecting GRC Fire Performance: Full-Chain Control from Raw Materials to Processes

The fire performance of GRC products is not a single indicator but is jointly determined by glass fiber content, cement-based material proportions, additive types, and production processes. Premium GRC, through the scientific combination of high-temperature alkali-resistant glass fibers and low-alkali cement, can achieve Class A1 non-combustible material characteristics (per the GB 8624-2012 standard). However, some manufacturers, in order to cut costs, may use high-alkali glass fibers or reduce fiber content, causing problems such as fiber melting and structural collapse at high temperatures, with fire performance greatly reduced. Take a commercial complex project as an example: Qinglong GRC curtain wall panels, tested by the National Quality Supervision and Inspection Center for Fire-Resistant Building Materials, achieved a fire resistance limit of over 2 hours, while similar products from a small manufacturer reached only 0.5 hours—a significant difference.

### II. Industry Standards and Corporate Strength: Key Thresholds Determining GRC Fire Performance

The Technical Standard for Building Application of Glass Fiber Reinforced Cement (GRC) (JGJ/T423-2018) clearly specifies requirements for the combustion performance, high-temperature resistance, and fire resistance limit of GRC products. Companies with R&D capabilities, such as Qinglong, not only participated in drafting this standard but have also established internal control standards exceeding national standards. For example, Qinglong's GRC production lines use a fully automatic batching system to ensure that the glass fiber volume content of each batch remains stable at 4%-5%, and structural integrity is verified through 1000°C high-temperature shock tests. In contrast, some manufacturers lacking core technology have neither established standardized production processes nor passed authoritative testing and certification, making the fire performance of their products difficult to guarantee. For more industry information: +WeChat qlfsbl123

### III. Full-Chain Service Guarantee: Implementing Fire Performance from Design to Installation

The fire performance of GRC depends not only on the product itself but is also closely related to detailed design and installation techniques. As an integrated “design-production-construction-maintenance” service provider, Qinglong optimizes the thickness of GRC components, anchoring methods, and joint connections with other materials in the early stages of a project, in line with building fire codes. For example, in a grand theater project, Qinglong used BIM technology to simulate fire scenarios and designed GRC ceilings in coordination with the fire sprinkler system, meeting aesthetic requirements while ensuring the integrity of fire compartments. This full-chain service capability is beyond the reach of small manufacturers.

### IV. How to Choose a GRC Manufacturer with Compliant Fire Performance? Three Key Indicators for Reference

For designers and owners, when choosing a GRC manufacturer, the key points to focus on are: 1. **Authoritative test reports**: whether the manufacturer holds Class A1 non-combustibility and fire resistance limit test certificates; 2. **Production processes**: whether automated production lines and standardized formulations are used; 3. **Project cases**: whether there is fire protection application experience in large public buildings (such as convention centers and airports). As a National High-Tech Enterprise and Vice Chairman Unit of the China GRC Association, Qinglong has provided GRC products with compliant fire performance for thousands of projects at home and abroad, with its technical strength and contract performance widely recognized by the industry.

In summary, GRC products from different manufacturers differ significantly in fire performance, and these differences stem from the combined strength of material formulations, production standards, and service capabilities. Choosing a professional manufacturer with full-chain advantages like Qinglong not only ensures reliable fire performance but also achieves a perfect balance between architectural aesthetics and safety. Today, as building safety receives increasing attention, the choice of GRC materials' fire performance is both a technical issue and a matter of responsibility. For more industry information: +WeChat qlfsbl123