What Are the Differences in Application Scenarios for GRC Panels of Different Thicknesses? Thickness Selection Guide and Application Matching Strategies

The thickness of GRC panels directly determines their strength, weight, and suitable applications. Products of different thicknesses differ significantly in load-bearing capacity, shape realization, and environmental adaptability, so scientific selection requires precise matching with project requirements. Drawing on multi-sector project experience, Qinglong explains the applicable scenarios and selection points for GRC panels of different thicknesses.

I. Application Scenarios for Ultra-Thin GRC Panels (Thickness ≤15mm)

Ultra-thin GRC panels take lightweight construction and flexible shaping as their core advantages and are suitable for specific scenarios. Interior decoration scenarios: such as shopping mall atrium ceilings and theater wall features, with a thickness of 10-12mm and light weight (1400-1600kg/m³), capable of achieving complex curved surfaces and openwork shapes; in the Meixihu Boston MIZU Salon project, Qinglong used 12mm ultra-thin GRC panels to create artistic walls. Temporary buildings and exhibition decoration: thickness of 8-10mm, easy to install, demountable and reusable, suitable for short-term use scenarios. Interior walls in old building renovations: thickness of 12-15mm, reducing building loads and fitting the load-bearing limits of aging structures. Note that ultra-thin panels have relatively weak impact resistance and should be avoided in crowded areas prone to collisions.

II. Application Scenarios for Standard-Thickness GRC Panels (15-30mm)

Standard-thickness GRC panels balance performance and economy, making them the most widely used type. Exterior wall cladding panels: thickness of 20-25mm, with sufficient strength and weather resistance, suitable for commercial complexes and residential exterior wall decoration; for example, Guangzhou Zengcheng Qiangwei Garden used 22mm GRC cladding panels to create a minimalist facade. Interior partition walls: thickness of 15-20mm, with sound insulation reaching over 40dB, meeting office and residential partition wall requirements. Landscape features: thickness of 25-30mm, such as benches and flower beds, balancing load-bearing capacity and durability. Through mix optimization, Qinglong's standard-thickness GRC panels achieve a compressive strength of 18MPa at 20mm thickness, meeting diverse scenario requirements.

III. Application Scenarios for Thick GRC Panels (30-50mm)

Thick GRC panels feature high strength and high durability as their core characteristics, making them suitable for demanding scenarios. Outdoor load-bearing components: such as large sculptures and landscape bridge decks, with a thickness of 30-40mm and load-bearing capacity ≥5.0kN/㎡; in the public art project of the Shanghai Astronomy Museum, Qinglong used 35mm-thick GRC panels to create large sculptures. Exterior walls in high wind pressure areas: thickness of 35-45mm, with wind pressure resistance reaching over 1.5kPa, suitable for coastal typhoon regions; for example, Hainan Poly Bandao No.1 used 40mm-thick GRC double-curved panels to withstand sea winds. Industrial building exterior walls: thickness of 40-50mm, with strong wear and impact resistance, suitable for factories, warehouses, and similar environments.

IV. Key Decision Factors and Considerations for Thickness Selection

Selection requires comprehensive consideration of multiple factors. Key factors: load requirements (uniform loads, concentrated loads), span size (the larger the span, the thicker the panel needed), environmental conditions (outdoor/indoor, corrosive/dry), and shape complexity (complex shapes require balancing thickness and weight). Considerations: avoid blindly increasing thickness, as excessive thickness adds building loads and costs; ultra-thin panels should be used with stiffening ribs to improve stability; thick panels require optimized installation methods, using embedded connectors to ensure secure fixing. Qinglong provides customized thickness solutions that precisely match project parameters, achieving a balance between performance and cost.