Does GRC Meet Fire Resistance Standards? Qinglong GRC Fire Ratings and Engineering Safety Explained

GRC material offers outstanding fire resistance. Naturally non-combustible with a fire rating of up to Class A, it effectively blocks the spread of flames and meets the fire safety code requirements of all types of buildings, making it an ideal decorative material for fire-sensitive settings such as high-rise buildings and public venues. All GRC products produced by Qinglong Group have passed authoritative fire testing, and their reliable fire performance has been verified across multiple major public construction projects.

1. Core Indicators and Ratings of GRC Fire Performance

Fire rating standard: GRC material is composed mainly of cement, quartz sand, and alkali-resistant glass fiber, making it naturally non-combustible. Under the GB/T8624-2012 Classification for Burning Behavior of Building Materials and Products, it achieves a Class A fire rating (non-combustible material). Qinglong GRC products have all tested at Class A burning performance, with no ignition, no melting, and no toxic smoke release. Fire resistance performance: 15mm thick GRC panels have a fire resistance limit of ≥1.5h, while 20mm thick panels can reach more than 2.0h, far exceeding ordinary decorative materials. In fire resistance testing, Qinglong's 20mm thick GRC curtain wall panels showed no flame penetration or structural collapse within 120 minutes. Smoke toxicity indicators: no toxic or harmful gases are released during combustion, with a smoke toxicity rating of ZA1 (safe level), meeting the safety requirements for public buildings and living environments. Qinglong GRC products all pass smoke toxicity testing.

2. Core Advantages and Mechanisms of GRC Fire Performance

Inorganic material properties: Both cement and quartz sand are inorganic non-combustible materials that do not produce flammable gases at high temperatures, fundamentally eliminating the risk of combustion, unlike combustible decorative materials such as wood and plastic. Fiber-reinforced protection: Alkali-resistant glass fiber retains a degree of strength at high temperatures, preventing GRC components from rapidly disintegrating in a fire and extending fire resistance time. Qinglong GRC products maintain structural integrity even at 600°C. Low thermal conductivity: GRC has a low thermal conductivity (0.8-1.0W/(m·K)), effectively blocking heat transfer and slowing the spread of fire, buying valuable time for evacuation and firefighting. In fire simulation tests, the temperature on the non-fire side of Qinglong GRC curtain walls rose slowly.

3. GRC Fire Protection Application Solutions for Different Building Scenarios

High-rise building facades: Class A fire-rated GRC curtain wall panels are used, combined with fire-resistant sealant and fire isolation belts. Qinglong's GRC facade project for the Xinghewan high-rise residential development in Guangzhou fully meets high-rise building fire codes and passed the fire acceptance inspection on the first attempt. Public venue buildings: such as theaters and convention centers, GRC components with a high fire resistance limit (≥2.0h) are selected. Qinglong's 9,000-square-meter GRC curtain wall for the Wuhan Han Show Theater, as a large performance venue, provides fire performance that meets the safety requirements of public gathering places. Underground building spaces: such as utility tunnels and metro stations, moisture-proof + fire-resistant composite GRC components are used. Qinglong's GRC interior for a metro supporting project offers both fire resistance and moisture resistance, complying with underground space safety standards. Commercial complexes: GRC decorative components are preferred in densely populated areas, such as atrium ceilings and fire compartment partitions. Qinglong's GRC interiors for the China Resources MixC One in Wuxiang, Nanning raised the safety level of the commercial space through optimized fire protection design.

4. Proven Fire Performance and Assurance of Qinglong GRC

Project case verification: The GRC curtain wall project of the Shenzhen Pingshan High-tech Zone Comprehensive Service Center (convention and exhibition + hotel), a Luban Award-winning project, passed rigorous acceptance inspections for fire performance and meets the fire safety requirements of large public buildings. The GRC exterior walls of the Shanghai Qingpu R&D Base, as a high-tech park building, achieved a Grade 1 fire safety rating. Authoritative testing and certification: Every batch of products is tested by the National Fire Product Quality Supervision and Inspection Center, with an official fire test report issued; Qinglong GRC products have a 100% pass rate in fire testing. Fire protection design support: Professional fire protection design development services are provided, optimizing details such as component thickness and joint sealing in line with project fire safety requirements. Qinglong has delivered customized fire protection solutions for multiple fire-sensitive projects.

GRC material fully meets fire performance standards with remarkable advantages, and its natural Class A non-combustible properties make it a safe choice for all types of buildings. Backed by strict quality control and professional fire protection design capabilities, Qinglong Group delivers reliable GRC fire protection solutions for projects. Choosing GRC materials with excellent fire performance together with a professional manufacturer is key to raising a building's fire safety level.