A2 core

1. Coil-coating finish 2. Aluminium (0.5 mm) 3. primer (protective paint)

Structure of the PREFABOND aluminium composite panel with A2 core

	Standard	Unit	Value
Total thickness	—	mm	4 (±0.2)
Plate thickness	—	mm	0.5
Core thickness	—	mm	3
Width	—	mm	1,000 \| 1,250 \| 1,500 \| 1,750 \| 2,015 (±2.0)
Length	—	mm	max. 7,300 (±4.0)
Bending allowance	—	mm/m	max. 0.5% (5.0 mm/m) of the length and/or width
diagonal deviation	—	mm	max. 5

	Standard	Unit	Value
Weight	—	kg/m²	8.4
Tensile strength	ASTM E8	N/mm²	43
0.2% yield strength	ASTM E8	N/mm²	41
Elongation at break	ASTM E8	%	3.8
Modulus of elasticity (E)	ASTM D393	kN/mm²	38.5
Heat deflection temperature	ISO 75-2	°C	110
Thermal expansion	ASTM D696	10^–6/°C	19

Reaction to fire classification

A2-s1, d0 — non-combustible

Land	Tested to …	Result and rating
EU (applicable in Europe, Switzerland and Turkey)	EN 13823 \| EN ISO 1716 EN 13501‑1	Class A2-s1, d0
Switzerland	VKF	RF1 (BKZ 6.3)
Austria	ÖNORM B 3800‑5	passed

Land	Certification and approval
Germany	Technical approval — DIBt
International	Environmental Product Declaration (EPD)

Coating properties	Standard	2 coatings
Coating thickness	EN 13523‑1 ASTM D 7091	35 μm to 40 μm Colours: standard colours, special colours (Basics, Anodized)
Gloss	EN 13523‑2 \| ASTM D 523	High gloss, satin finish, matt and MattXtrem
Corrosion resistance	EN 1396	Category 4: Industry, extreme conditions \| sea and coasts (less than 3,000 m distance from the sea, depending on the topography of the landscape) \| high UV radiation and extreme conditions
Pencil hardness	EN 13523‑4 \| ASTM D 3363	> HB
Resistance to rapid deformation	EN 13523‑5 \| ASTM D 2794	no formation of cracks, no peeling
Adhesion after indentation	EN 13523‑6 \| ASTM D 3359	100% adhesion
Resistance to Cracking on bending	EN 13523‑7 \| ASTM D 4145	very good flexibility (0.5 T); depending on alloy and state
Resistance to salt spray	EN 13523‑8 \| ASTM G 85	1,000 hrs.
Resistance to water immersion	EN 13523‑9 \| ASTM D 870	3,000 hrs.
Resistance to humidity	EN 13523-25 \| ASTM D 2247	3,000 hrs.
Resistance to acids: 10% HCl solution (15 min at 23 °C) 20% H2SO4 solution (18 hrs at 23 °C) nitric acid	AAMA 2605 ASTM D 1308	hydrochloric acid: no effect sulphuric acid: no effect nitric acid: ΔE < 5 units (with the exception of a few blue and metallic tones)
Resistance to detergents 3% VIGOR solution (72 hrs at 30 °C)	AAMA 2605	no effect
Outdoor resistance of the paint	45° South Florida EN 13523‑3 \| ASTM D 2244	After 5 years: colour variation on 5 to 10 units (ΔE); depending on the colour
Chalking resistance	45° South Florida ASTM D 4214	Level ≥ 8

Coating properties	Standard	3 coatings
Coating thickness	EN 13523‑1 ASTM D 7091	50 μm to 55 μm Colours: Special colours (Effects, Wood, Mineral, Natural, Concrete)
Gloss	EN 13523‑2 \| ASTM D 523	High gloss, satin finish, matt and MattXtrem
Corrosion resistance	EN 1396	Category 4: Industry, extreme conditions \| sea and coasts (less than 3,000 m distance from the sea, depending on the topography of the landscape) \| high UV radiation and extreme conditions
Pencil hardness	EN 13523‑4 \| ASTM D 3363	> HB
Resistance to rapid deformation	EN 13523‑5 \| ASTM D 2794	no formation of cracks, no peeling
Adhesion after indentation	EN 13523‑6 \| ASTM D 3359	100% adhesion
Resistance to cracking on bending	EN 13523‑7 \| ASTM D 4145	very good flexibility (0.5 T); depending on alloy and state
Resistance to salt spray	EN 13523‑8 \| ASTM G 85	1,000 hrs.
Resistance to water immersion	EN 13523‑9 \| ASTM D 870	3,000 hrs.
Resistance to humidity	EN 13523-25 \| ASTM D 2247	3,000 hrs.
Mortar resistance	AAMA 2605	no effect
Resistance to acids: 10% HCl solution (15 min at 23 °C) 20% H2SO4 solution (18 hrs at 23 °C) nitric acid	AAMA 2605 ASTM D 1308	hydrochloric acid: no effect sulphuric acid: no effect nitric acid: ΔE < 5 units (with the exception of a few blue and metallic tones)
Resistance to detergents 3% VIGOR solution (72 hrs at 30 °C)	AAMA 2605	no effect
Outdoor resistance of the paint	45° South Florida EN 13523‑3 \| ASTM D 2244	After 5 years: colour variation on 5 to 10 units (ΔE); depending on the colour
Chalking resistance	45° South Florida ASTM D 4214	Level ≥ 8

Note

Despite the greatest possible care taken when carrying out content controls, PREFA assumes no liability for the completeness and accuracy of the contents. Subject to technical modifications and errors.

The aluminium composite panels may only be used at temperatures of –50 °C to +80 °C. Allow for material expansion when deciding which type of fastening system to use.

To absorb thermal expansion, a joint must be made in the panel joint with a width that depends on the change in dimensions to be expected. However, we recommend a width of at least 8 mm. The panel must be attached with fixed and sliding points.

The thermal expansion coefficient of the PREFABOND aluminium composite panel with an A2 core is 0.019 mm/m/°C.

Length of plate	Expansion at a temperature difference of 60°	Expansion at a temperature difference of 100°
2 m	2.28 mm	3.80 mm
3 m	3.42 mm	5.70 mm
4 m	4.56 mm	7.60 mm
6 m	6.84 mm	11.40 mm

A2 core

Product dimensions – Dimensional tolerances – Mechanical values

Reaction to fire (classified according to EN 13501-1)

finish

Coating properties — 2 coatings

Coating properties — 3 coatings

Material expansion

A2 core

Product dimensions – Dimensional tolerances – Mechanical values

Reaction to fire (classified according to EN 13501-1)

finish

Coating properties — 2 coatings

Coating properties — 3 coatings

Material expansion

Note

Coating properties — 2 coatings

Coating properties — 3 coatings