ALUCOBOND® A2

ALUCOBOND® A2 is our non-combustible aluminium composite panel used in architecture that fulfills the respective standards worldwide. Thanks to its mineral-filled core, ALUCOBOND® A2 meets the strict requirements of the fire regulations and enhances the possibilities for the concept and design of buildings. ALUCOBOND® A2, just like all the products of the ALUCOBOND® family, allows simple processing, is impact-resistant, break-proof and weatherproof and, above all, non-combustible.

  • Description

PRODUCT PROPERTIES

ALUCOBOND® A2 compared with solid aluminium
Required thickness and actual weights of panels with same rigidity

ALUCOBOND® A2 Aluminium
Rigidity (E·J) Section modulus Thickness Weight Thickness Weight
1250 kN cm²/m 1.25 cm³/m 3 mm 5.9 kg/m² 2.7 mm 7.3 kg/m²
2400 kN cm²/m 1.75 cm³/m 4 mm 7.6 kg/m² 3.3 mm 8.9 kg/m²

TECHNICAL DATA

Thickness Standards Unit 3 mm 4 mm
Thickness of Aluminium Layers [mm] 0.5
Weight [kg/m²] 5.9 7.6
Width [mm] 1250 / 1500
Technical properties
Section modulus W DIN 53293 [cm³/m] 1.25 1.75
Rigidity E·J DIN 53293 [kNcm²/m] 1250 2400
Alloy / Temper of Aluminium Layers EN 573-3 EN 515 EN AW 5005A (AIMg1) H22 / H42
Modulus of Elasticity EN 1999 1-1 [N/mm²] 70’000
Tensile Strength of Aluminium EN 485-2 [N/mm²] Rm ? 130
0.2 % Proof Stress EN 485-2 [N/mm²] Rp0,2 ? 90
Elongation EN 485-2 [%] A50 ? 5
Linear Thermal Expansion EN 1999 1-1 2.4 mm/m at 100ºC temperature difference
Core
Mineral-filled core with polymer adhesives
Surface
Lacquering Coil Coating Fluorocarbon (e.g. PVDF)
Gloss (initial value) EN 13523-2 [%] 30-80
Pencil Hardness EN 13523-4 HB-F
Acoustical Properties
Sound Absorption Factor ?s ISO 354 0.05
Sound Transmission Loss Rw ISO 717-1 [dB] 27 27
Loss Factor d EN ISO 6721, Frequency range 100-3200 Hz 0.004 0.005
Thermal Properties
Thermal Resistance R DIN 52612 [m²K/W] 0.002 0.002
Thermal conductivity ? DIN 52612 [W/mK] 1.99 1.77
Heat Transition Coefficient U DIN 52612 [W/m²K] 5.83 5.80
Temperature Resistance [ºC] -50 to +80

Wind load and permissible panel sizes

In Germany, the dimensioning of ALUCOBOND® façade systems is regulated by the general building inspectorate approval (abZ) No. Z-10.3-774. In the Technical Extras section, you can find this and other documents, including load tables, dimensioning aids and various design examples

FIRE CLASSIFICATION

Country Test accord. to … Classification
Australia AS ISO 9705 AS 1530.3 Indices EN 13501-1 Group 1 material SMOGR A 0.630 m2 / s2 0 (ignitibility) 0 (flame spread) 0 (heat evolved) 0-1 (smoke developed) A2-s1, d0
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