WILLSTRONG® Stone Honeycomb Panel bonds natural stone veneer to lightweight aluminum honeycomb, retaining elegance and reducing weight by up to 70% versus solid stone.
Engineered for high-rise facades, luxury interiors, and retrofits, SHP offers impact resistance, flatness, and easy installation without overloading structures.
Panel Thickness: 10mm 15mm, 20mm, 25mm, 30mm, 50mm, 100mm
Metal Sheet Thickness | 0.5-1.2mm | ||
Width | Customized to stone dimensions | ||
Length | Custom cut length | ||
Color Options | |||
White Series | √ | √ | √ |
Gray Series | √ | √ | √ |
Beige / Travertine Series | √ | √ | √ |
Black / Brown Series | √ | √ | √ |
Green Exotic Stone Series | √ | √ | √ |
Colorful Exotic Stone Series | √ | √ | √ |
Granite Series | √ | √ | √ |
Stone-Pattern Heat Transfer Series | √ | √ | √ |
Design | √ | √ | √ |
Special Finishes | √ | √ | √ |
Remark: Custom dimensions are available upon request
THICKNESS | STANDARDS | UNIT | 10 | 12 | 20 | 25 |
|---|---|---|---|---|---|---|
Fire | FR-A2, S1,d0 | FR-A2, S1,d0 | FR-A2, S1,d0 | FR-A2, S1,d0 | ||
Metal Surface Thickness | mm | 0.7-1.0mm | ||||
Weight | kg/㎡ | |||||
Width | mm | 600-1200mm | ||||
TECHNICAL PROPERTIES | ||||||
Section modulus | W | cm³/m | 18.1 | 23.1 | ||
Rigidity | EJ | KNc㎡/m | 16500 | 34400 | 138900 | 221600 |
Alloy/Temper of Aluninum Layers | 3003H26 | 3003H26 | 3003H26 | 3003H26 | ||
Modulus of Elasticity | N/m㎡ | 70000 | ||||
Tensile Strength of Aluminum | N/m㎡ | ≥130 | ||||
0.2%Proof Stress | N/m㎡ | ≥90 | ||||
Elongation | % | ≥5 | ||||
Linear Thermal Expansion | 2.4mm/m at 100°c temperature | |||||
CORE | AL | |||||
SURFACE | ||||||
Lacquering | Marbel | Marble | ||||
Thickness | mm | 5 | 5 | |||
Gloss(initial value) | 20-80 | 20-80 | ||||
Hardness | ||||||
ACOUSTICAL PROPERTIES | ||||||
Sound Absorption Factor | 0.05-0.07 | |||||
Sound Transmission Loss | db | 21-25 | ||||
THERMAL PROPERTIES | ||||||
Thermal Resistance | R | ㎡k/w | 0.07 | 0.09 | ||
Thermal conductivity | w/mk | 0.49 | 0.44 | |||
Heqt transition coefficient | U | w/㎡k | 5.68 | 5.58 | ||
Temperature Resistance | °c | -10 | 40 | -50 | 80 | |
EU | EN13501-1 | A2-s1, d0 |
EU | EN13501-1 | B-s1, d0 |
Germany | DIN4102-7 | Passed |
Sigapore | BS476-Part 6 | Fire propagation index=1.0 |
Sigapore | BS476-Part 7 | Class 0 |
USA | NFPA285 | Passed |
USA | ASTM E84-15a | Flame Spread Index 5, Smoke Developed Index 0; |
China | GB 8624-2012 | A2-s1, d0 |
China | GB 8624-2012 | B-s1, d0 |
Russia | GOST31251 | Passed |
Color difference (ΔE) | Within same batch: ≤ 2.0; Between different batches of same color code: ≤ 3.0 | |
Impact resistance | ≥50kg.cm | |
Pencil hardness | ≥2H | |
Adhesion | Class 0 (cross-cut) | |
Gloss deviation | Gloss < 10 | ±5 |
20 ≤ Gloss < 40 | ±7 | |
Gloss ≥ 80 | ±10 | |
Resistance to hydrochloric acid | No change (5% HCl solution) | |
Resistance to nitric acid | No blistering or other changes; ΔE ≤ 5.0 | |
Solvent resistance | No substrate exposure | |
Mortar resistance | No change | |
Abrasion resistance | ≥5L/ μm | |
Salt spray resistance | Class 1 or better | |
Resistance to accelerated weathering | Color difference ΔE ≤ 3.0; Gloss retention ≥ 60%; Other aging properties: Class 0 | |
Damp heat resistance | Class 1 or better | |
Boiling water resistance | Cross-cut test: Class 0 | |








Case Study
WILLSTRONG supplied its ultra-lightweight stone honeycomb panels for the Hangzhou Louis Vuitton Tower facade, blending natural stone elegance with advanced composite engineering. The system delivers exceptional flatness, high rigidity, and significant weight reduction, enabling sophisticated modern architectural statements. A wide variety of natural stone veneers and custom finishes allows a perfect match for high-end retail brand identities.









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