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Fire ratedCORE AL FR is a sandwich panel with a core in aluminium honeycomb bonded to two skins of aluminium.
CORE AL FR offers superior mechanical properties and excellent fire ratings. CORE AL FR has passed the most stringent tests of European Regulation as far as fire reaction is concerned in shipbuilding, building and railway sectors.
Our panels are produced according to the needs of our clients, who determine size and other panel characteristics. Panel for false ceilings and ventilated facades, in class A2, therefore non-combustible. Thanks to special assembly techniques, CEL AL FR A2 meets the requirements of the UNI-EN 13501-1 standard.
A – ALUMINIUM SKINS
Thickness mm: 0,5 – 0,8 – 1 (standard)
B – STRUCTURAL ADHESIVE
C – CORE IN ALUMINIUM HONEYCOMB
Aluminium honeycomb (Alloy series 3000*)
with hexagonal cells
Diameter: Ø1/4”, Ø3/8”, Ø1/2”, Ø3/4”
Thickness Foil: from 50 to 70 microns.
These precision processes are performed by numerical control machines (CNC).
To obtain special shapes and processes, it is necessary to provide a DWG or DXF format drawing in advance.
The CORE AL FR Sandwich Panel has been certified with different types of powder or liquid coatings to adapt to the various stylistic, aesthetic and environmental needs.The skin material can be painted in different RAL colours. The external layers are available in different thicknesses and coatings, anodised or with primer.
User manual indicates the conditions in which the material must be stored and preserved in an optimal manner. Here are some of the most important factors that influence the conservation of the panel: storage temperature, handling, exposure to light and atmospheric agents.
Particular attention must be paid in the presence of protective films that could be difficult to remove when subjected to atmospheric agents or following prolonged storage times.
The panel can be easily cleaned and degreased, however the use of acidic substances or with abrasive components is not recommended as they could compromise its aesthetic qualities.
To allow us to offer youna panel with particular finishes or colours without minimal pigment variations, it is recommended to place an overall order , so that we can plan the production with the rolling mills that will carry out the painting of the sheets in a batch.
The CORE AL FR panel is 95% recyclable as it is composed of 95% aluminum, which can be melted and reused several times.
Size: 1300×2600 8mm, 12mm, 15mm, 10mm, 20mm.
Technical data sheet for standard panels (dimensions, materials and special finishes on request) | |||||||
| TECHNICAL CHARACTERISTICS OF PANEL | |||||||
panel size mm | standard 1250 x 2500 / 1250 x 3000 / 1500 x 3000; On request up to 2000 x 7000 | ||||||
thickness’ tolerance mm | ± 0,3 | ||||||
dimension’s tolerance mm | ± 30 | ||||||
planarity *** mm/m | +/-1 | ||||||
skins’ thickness mm | from 0,5 to 5,0 | ||||||
skin alluminium alloy | 1000 series, 3000 series, 5000 series | ||||||
honeycomb alluminium alloy | 3000 series, 5000 series | ||||||
thickness of honeycomb foil μm | 50 and 70 | ||||||
diameter of honeycomb Ø = mm | from 3 to 19 | ||||||
honeycomb density Kg/m³ | from 20 to 163 | ||||||
adhesive | two-components polyurethane adhesive/thermoplastic film/ epoxy film/ two-components epoxy adhesive | ||||||
skin characteristics | rough/primer/polyester/PVDF/ anodised | ||||||
| PANEL PHISIC AND MECHANIC PERFORMANCES | |||||||
type panel (some examples) – Panel Thickness mmtype panel (some examples) – Skin Thickness mm | 6 | 10 | 15 | 10 | 15 | 20 | 25 |
0,5 + 0,5 | 1,0 + 1,0 | ||||||
panel weight ‡ Kg/m2 | 3,8 | 4,0 | 4,3 | 6,7 | 7,0 | 7,3 | 7,6 |
compressive stabilised strength MPa ** ‡ ASTM C 365-365 M Mpa | 2,9 | ||||||
maximum load ** ‡ ASTM C 393 † N | 190 | 340 | 520 | 600 | 1.000 | 1.350 | 1.700 |
deflection at maximum load ‡ ASTM C 393 † mm | 14 | 8 | 6 | 8 | 6 | 4 | 3 |
skins E Elastic Modulus Mpa | 68.000 – 70.000 | ||||||
moment of inertia I ** mm4/m | 7.600 | 22.000 | 52.000 | 40.000 | 98.000 | 181.000 | 288.000 |
average resistance to peeling ** ‡ ASTM D1781-98 (2012) | > 280 N/76 mm or 40 Nmm/mm | ||||||
maximum service temperature ** °C | – 40 / + 60; on request + 80 / + 100 / + 150 | ||||||
thermal expansion coefficient ** °C-1 | 2,3 x 10-5 | ||||||
** Tested by Internal Laboratory
*** Approximate value
† Sample dimension with 4 support points (L, W) 540x50mm;
distance among the lower points 500mm, distance among the upper points 250mm
‡ Values for a panel with a honeycomb core of Ø6 56kg/m3 (Ø 1/4”)
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