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]	R_m ? 130
0.2 % Proof Stress		EN 485-2	[N/mm²]	R_p0,2? 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	R_w	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

Brand

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