What Are the Differences in Application Scenarios for GRC Panels of Different Thicknesses? Selection Guide and Case References

The differences in applicable scenarios for GRC panels of different thicknesses fundamentally depend on the balance between mechanical performance and self-weight: thin panels (≤15mm) suit interior decoration, standard panels (15-30mm) focus on exterior walls and landscapes, and thick panels (>30mm) target load-bearing and complex shapes. Backed by 600,000 square meters of production experience, Qinglong provides precise thickness selection for projects such as the Wuhan Han Show Theatre and Hainan International Convention and Exhibition Center, achieving a project compatibility rate of 99%.

1. Thin GRC Panels (≤15mm): Top Choice for Lightweight Decoration

Thin panels take lightweight design and decorativeness as their core advantages. Thickness range: 8-15mm; bulk density 1600-1800kg/m³; flexural strength ≥10MPa. Qinglong's 15mm thin panel weighs only 36kg/㎡ and can be carried manually. Applicable scenarios: interior ceilings, partition walls, decorative moldings, and bas-reliefs. Qinglong supplied 15mm white cement GRC carved panels for the Wuhan Han Show Theatre, creating the "Chinese red lantern" shape while balancing aesthetics and lightweight design. Technical highlights: produced with the spray-up process, the surface is smooth and refined; Qinglong thin panels achieve a surface flatness of ≤0.3mm/m, meeting high-end interior decoration needs.

2. Standard-Thickness GRC Panels (15-30mm): Mainstay for General Applications

Standard panels balance performance and practicality and are the most widely used. Thickness range: 15-30mm; bulk density 1800-2000kg/m³; flexural strength ≥12MPa; impact strength ≥3kJ/m². Qinglong's 25mm standard panel achieves a compressive strength of 35MPa. Applicable scenarios: exterior wall cladding panels, curtain walls, landscape benches, and window casings. Qinglong's 20mm GRC curtain wall panels at the Shenzhen Longhua Xiangshan Science and Technology Park show no fading after 1,000 hours of UV aging. Project case: the 25-30mm double-curved GRC curtain wall at Hainan Poly Peninsula No. 1, with a maximum panel size of 6000×3000mm, satisfies complex shapes while ensuring installation safety.

3. Thick GRC Panels (>30mm): Suited for Load-Bearing and Complex Shapes

Thick panels are characterized by high strength and stability. Thickness range: 30-50mm; bulk density 2000-2200kg/m³; flexural strength ≥15MPa. Qinglong's 40mm thick panel achieves a compressive strength of 40MPa. Applicable scenarios: large sculptures, load-bearing components, stone-imitation curtain walls, and heavy-duty landscapes. Qinglong supplied 35mm thick GRC public art sculptures for the Shanghai Astronomy Museum, which remain deformation-free at heights over 3 meters. Technical highlights: reinforced with built-in steel rebar or steel frames. Qinglong's 45mm thick GRC curtain wall panels for the Sichuan Panzhihua Third Front Construction project feature a chiseled surface finish with no strength loss over 20 years. Selection advice: based on project loads, environment, and shape complexity, Qinglong's professional team provides thickness solutions, avoiding cost increases caused by excessive thickness.