ALUCOBOND® A2
Our non-combustible aluminium composite panel.
ALUCOBOND® A2 is our non-combustible aluminium composite panel for façades which meets all relevant standards worldwide. ALUCOBOND® A2 fulfils very exacting requirements of the fire safety regulations thanks to the mineral-filled core, and increases the scope for building concepts and design. Like all products in the ALUCOBOND® family, ALUCOBOND® A2 is easy to process, break-proof, impact-resistant, weather-resistant and, most notably, non-combustible.
Product properties
ALUCOBOND® A2 in comparison with solid aluminium sheets
Required thickness and corresponding weights with the same bending stiffness
| ALUCOBOND® A2 | Aluminium | ||||
|---|---|---|---|---|---|
| Flexural rigidity (E·I) | Section modulus (W) | 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 |
Product range
ALUCOBOND® A2
Thickness: 3/4mm
| Width [mm] | 1000 | 1250 | 1500 | 1575 | 1650 |
|---|---|---|---|---|---|
| Length [mm] | 2000-6800 | 2000-6800 | 2000-6800 | 2000-6800 | 2000-6800 |
| Solid | ● | ● | On request | ||
| Metallic | ● | ● | On request | ||
| Spectra & sparkling | ● | ● | |||
| Anodized Look | ● | ● | On request | ||
| NaturAL* | ● | ● | |||
| ALUCOBOND® legno – premium wood | ● | ● | |||
| Vintage | ● | ● | |||
| Façade design – Customised decor | ● | ● | |||
| Rocca | ● | ● | |||
| Mill finish | ● | ● |
* Exception: ALUCOBOND® naturAL Reflect is only available in ALUCOBOND® PLUS in a width of 1250 mm.
Dimensional tolerances (standard)
Due to manufacturing processes, a lateral misalignment of the cover sheets (up to 2 mm) may occur at the panel edges .
Thickness: ± 0.2 mm ( mill finish | stove-enamelled | anodized )
Width: - 0 / + 4 mm
Lengths: 2000 - 4000 mm; - 0 / + 6 mm
Lengths: 4001 - 6800 mm; - 0 / + 10 mm
Colours and finishes
Other colours and finishes are available on request. These are subject to our minimum quantities.
Technical data
| Thickness | Standard | Unit | 3 mm | 4 mm | |
|---|---|---|---|---|---|
| Cover sheet thickness | [mm] | 0.5 | 0.5 | ||
| Weight | [kg/m²] | 5.9 | 7.6 | ||
| Production widths | [mm] | 1250 / 1500 | 1250 / 1500 | ||
| Technical properties | |||||
| Section modulus | W | DIN 53293 | [cm³/m] | 1.25 | 1.75 |
| Flexural rigidity | E·J | DIN 53293 | [kNcm²/m] | 1250 | 2400 |
| Alloy / temper of the cover sheets |
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 the cover sheets | EN 485-2 | [N/mm²] | Rm ≥ 130 | Rm ≥ 130 | |
| Proof stress (0.2 limit) | EN 485-2 | [N/mm²] | Rp0.2 ≥ 90 | Rp0.2 ≥ 90 | |
| Elongation | EN 485-2 | [%] | A50 ≥ 5 | A50 ≥ 5 | |
| Linear expansion coefficient |
EN 1999 1-1 | 2.4 mm/m at 100 K Temperature difference |
2.4 mm/m at 100 K Temperature difference |
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| Core | |||||
| Mineral fillers with polymer binder |
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| Surface | |||||
| Lacquering/Coating | High-quality polymer coating systems applied using the coil coating process |
High-quality polymer coating systems applied using the coil coating process |
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| Acoustic properties | |||||
| Sound absorption factor | αs | ISO 354 | 0.05 | 0.05 | |
| Rated sound reduction index | Rw | ISO 717-1 | [dB] | 27 | 27 |
| dissipation 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 | λ | DIN 52612 | [W/mK] | 1.99 | 1.77 |
| Heat transistion coefficient |
U | DIN 52612 | [W/m²K] | 5.83 | 5.80 |
| Temperature resistance | [ºC] | -50 to +80 | -50 to +80 |
Wind loads and panel dimensions
In Germany, the dimensioning of ALUCOBOND® façade systems is regulated by the general building 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 at Technical extras.
Fire rating
| Country | Test according to ... | Rating |
|---|---|---|
| EU | EN 13501-1 | Class A2-s1, d0 |
| Germany | EN 1187 (method 1) / DIN 4102-7 (roofing) |
passed |
| Great Britain England / Wales / Scotland |
BR 135 | Requirements of the LUL fulfilled |
| Switzerland | VKF | RF1 |
| Poland | EN 13501-1 | Class A2-s1, d0 |
| Russia | GOST 30244-94 GOST 30402-95 GOST 12.1.044-89 GOST 12.1.044-89 |
G1 (combustibility) W1 (spread of flame) D1 (smoke generation capacity) T1 (toxicity of fumes) |
| Australia | AS ISO 9705 AS 1530.3 Indices EN 13501-1 |
Group 1 material SMOGRA 0.630 m2 / s2 0 (combustibility) 0 (spread of flame ) 0 (heat development) 0-1 (smoke development) A2-s1, d0 |
| Country | Large fire test | Rating |
|---|---|---|
| Austria | ÖNORM B 3800-5 | passed |
| France | Lepir 2 | passed |
| Hungary | MSZ 14800-6 | passed |
| Great Britain | BS 8414 part 1 & 2 | passed |
| Poland | According to ITB specifications | passed |
| Russia | GOST 31251 | passed |
