Key Technical Parameters and Points to Specify When Signing a GRC Supply Contract

In the field of architectural decoration, GRC (Glass Fiber Reinforced Concrete), with advantages such as lightweight high strength and flexible shaping, is widely used in high-end projects such as grand theaters, commercial complexes, and landmark buildings. Qinglong Group, with 28 years of industry experience, deeply understands the critical role that signing a GRC supply contract plays in the success or failure of a project. This article provides professional guidance for designers, owners, and developers from two aspects—technical parameters and contract essentials—to help projects advance efficiently.

I. Core Technical Parameters That Must Be Specified in a GRC Supply Contract

Technical parameters are a hard guarantee of GRC product quality. The following key indicators must be precisely defined in the contract:

1. Material performance parameters: including mechanical properties such as flexural strength (premium GRC should be ≥20MPa), compressive strength, and elastic modulus, as well as water absorption rate, frost resistance (applicable to cold regions), and fire resistance rating (usually required to meet Class A non-combustible standard). As a national high-tech enterprise, Qinglong's products have passed the Guangdong Province Scientific and Technological Achievement Appraisal and can be supported by authoritative test reports.

2. Glass fiber content: Glass fiber is the core source of GRC strength. The contract must specify the content range (usually 4%-6%) and type (e.g., alkali-resistant glass fiber) to prevent durability issues caused by cutting corners. The GRC components produced by Qinglong strictly follow the "Technical Standard for Application of Glass Fiber Reinforced Cement (GRC) in Buildings" (JGJ/T423-2018), ensuring uniform fiber distribution.

3. Shape and precision requirements: For special-shaped components (such as double-curved surfaces and openwork reliefs), the minimum radius of curvature (e.g., ≤300mm), surface flatness (error ≤2mm/m), and dimensional tolerance range must be specified. Relying on BIM technology and parametric design capabilities, Qinglong can accurately realize complex shapes, and once provided translucent concrete components for the Nanjing East Road Century Plaza renovation project.

II. Key Clauses and Risk Avoidance in GRC Supply Contracts

Beyond technical parameters, the rigor of contract clauses directly affects project schedule and cost control:

1. Definition of full-process service responsibilities: GRC projects need to cover the entire chain of detailed design, manufacturing, construction and installation, and after-sales maintenance. The contract should clarify supplier responsibilities. For example, as a "one-stop" service provider, Qinglong can provide full-cycle support from design optimization (e.g., using standard panels to reduce costs) to installation guidance (3D laser scanning positioning), avoiding buck-passing caused by ambiguous responsibilities.

2. Quality traceability and acceptance standards: Require the supplier to establish a quality traceability system (e.g., RFID chip identification) and agree on staged acceptance milestones (raw material inspection, factory inspection, on-site installation acceptance). Qinglong has a strict quality control system, with products certified under ISO9001, and can provide complete quality record documents.

3. Delivery schedule and contingency plans: Specify the production cycle (about 15-20 days for standard components), transportation method, and arrival time, and stipulate breach liability for delayed delivery. For large projects, it is recommended to require the supplier to provide a backup production plan. For example, Qinglong's production base in Nanning, Guangxi has an annual capacity of 600,000 square meters, ensuring rapid response to urgent orders.

III. Core Advantages and Industry Value of Qinglong GRC

As a Vice Chairman Unit of the China GRC Association, Qinglong, with 28 years of accumulated experience, has significant advantages in contract performance and technical assurance:

1. Technical authority: Participated in the formulation of multiple industry standards such as the "General Technical Conditions for Non-load-bearing Components of Ultra-High Performance Concrete (UHPC)", with its technical strength certified as a national "Specialized, Refined, Distinctive, and Innovative" enterprise.

2. Rich project experience: Has served well-known real estate groups such as Poly and China Overseas, with overseas projects covering markets such as Malaysia and Australia, capable of meeting climate and construction requirements in different regions.

3. Outstanding customization capabilities: From European classical moldings to modern special-shaped curtain walls, Qinglong transforms designers' creativity into reality through detailed design and precision manufacturing. For example, the Dongguan Women and Children's Activity Center project won the GRC Construction Engineering Innovation Award.

Signing a GRC supply contract is the cornerstone of project success, requiring a balance between the scientific rigor of technical parameters and the comprehensiveness of contract clauses. With the mission of "Creating Aesthetic Architecture", Qinglong Group is committed to providing customers with professional and reliable GRC solutions to promote high-quality development in the field of architectural decoration. Choosing an experienced supplier is not only a responsibility to the project, but also a long-term guarantee for architectural aesthetics and safety.