Technical Data

ACROSS THE WORLD, ALUCOBOND® A2 is the only non-combustible aluminum composite panel used in architecture.

Due to its non-combustible core, this fantastic product meets stringent fire regulations and hugely increases the possibilities when it comes to creative building design.

As with all ALUCOBOND® products, ALUCOBOND® A2 allows for simple processing, is impact-resistant, break-proof, and weatherproof – and above all non-combustible.

ALUCOBOND® A2 is the only non-combustible aluminium composite panel used in architecture world-wide. Due to its non combustible core ALUCOBOND® A2 meets the high requirements of the fire regulations and enhances the possibilities for the concept and design of buildings.

ALUCOBOND® A2, as indeed all the products of the ALUCOBOND® family, allows simple processing, is impact-resistant, break-proof and weatherproof and, above all, non-combustible.

THICKNESS STANDARDS UNIT 3MM 4MM
Thickness of Aluminium Layers [mm] 0.5 0.5
Weight [kg/m²] 5.9 7.6
Width [mm] 1250 / 1500 1250 / 1500

 

TECHNICAL PROPERTIES STANDARDS UNIT 3MM 4MM
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 EN AW 5005A (AIMg1) H22/H42
Modulus of Elasticity EN 1999 1-1 [N/mm²] 70.000 70.000
Tensile Strength of Aluminium EN 485-2 [N/mm²] Rm ≥ 130 Rm ≥ 130
0.2 % Proof Stress EN 485-2 [N/mm²] Rp0,2 ≥ 90 Rp0,2 ≥ 90
Elongation EN 485-2 [%] A50 ≥ 5 A50 ≥ 5
Linear Thermal Expansion EN 1999 1-1 2.4 mm/m at 100ºC temperature difference 2.4 mm/m at 100ºC temperature difference

 

CORE STANDARDS UNIT 3MM 4MM
Mineral compound, polymer bonded

 

SURFACE STANDARDS UNIT 3MM 4MM
Lacquering Coil Coating Fluorocarbon based (e.g. PVDF) Coil Coating Fluorocarbon based (e.g. PVDF)
Gloss (initial value) EN 13523-2 [%] 30-80 30-80
Pencil Hardness EN 13523-4 HB-F HB-F

 

ACOUSTICAL PROPERTIES STANDARDS UNIT 3MM 4MM
Sound Absorption Factor αs ISO 354 0.5 0.5
Sound Transmission Loss Rw ISO/DIS 717-1, EN ISO 140-3 [dB] 27 27
Loss Factor d EN ISO 6721 Frequency range 100-3200 Hz 0.004 0.005

 

THERMAL STANDARDS UNIT 3MM 4MM
Thermal Resistance R DIN 52612 [m²K/W] 0.002 0.002
Thermal conductivity λ 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 -50 to +80

 

Wind load and permissible panel sizes

ALUCOBOND® A2 3 mm
ALUCOBOND® A2 4 mm
The graphs for 3 mm and 4 mm thick ALUCOBOND® A2 indicate the maximum permissible panel length (σ = 53 N/mm²) (without having to add a stiffener) based in applicable design wind load and panel width. Values apply to 4-side supported panels. Values for other systems on request.