Is the Product Quality of GRC Manufacturers Guaranteed? Quality System and Qinglong Group's Full-Process Control

The product quality assurance of a GRC manufacturer depends on the combined effect of its four pillars: "raw material control, production processes, testing systems, and after-sales commitments". Qinglong Group regards quality as its lifeline and has built a full-process control system covering "raw material admission – process monitoring – factory inspection – lifetime traceability": raw materials such as cement and fibre all pass strict admission standards (e.g. alkali-resistant glass fibre with ZrO₂ content ≥16%); production uses fully automatic mixing and spraying lines to ensure uniform fibre distribution; every batch is tested by a CNAS laboratory with flexural strength ≥12MPa and a factory pass rate ≥99%; and a 10-year quality guarantee is provided. In the Hainan International Convention and Exhibition Center project, our GRC roofing system has withstood ten years of typhoons, high humidity and high salt spray without cracking or leakage, with strength retention exceeding 95%. Quality assurance is the result of a systematic engineering effort.

Strict Raw Material Control Is the Foundation of Quality

Quality raw materials are the basis. Qinglong has internal control standards for cement alkali content, aggregate chloride ions and fibre zirconium content, with every incoming batch tested. Strategic partnerships with major producers such as Conch and China Resources ensure stability. Inferior raw materials lead to premature product ageing.

Precision Production Processes Ensure Consistency

Automated production lines are used, such as German BHS mixers and robotic spraying, to reduce human error. Vacuum dewatering improves density; intelligent curing kilns (temperature control ±2℃) optimise performance. Process stability keeps the strength coefficient of variation ≤5%.

A Comprehensive Testing System Eliminates Non-Conforming Products

The CNAS laboratory conducts flexural, impact resistance and durability tests according to standards. Each panel has a unique code and is traceable throughout. We regularly submit samples for third-party spot checks to ensure objective data. Full inspection before shipment prevents defective products from leaving the factory.

Reliable After-Sales Commitments Remove All Worries

We provide a 10-year warranty, regular follow-up visits and 24-hour emergency response. Project files are established to track performance long term. In the Shenzhen Yirui project, we promised lifetime maintenance, leaving customers free of worries.

Therefore, quality assurance requires systematic support. Through rigorous control, Qinglong Group ensures that every product stands the test of time.