Panel with aluminium skins and foam core
The COMPOCEL® ALF sandwich panel is made of aluminium skins and a PET or PVC foam core. It is a versatile solution suitable for various sectors, including shipbuilding and yachts, construction, and railway applications.
For specific requirements, a fire-certified version is available on request, designed for the shipbuilding and railway sectors. This version is exclusively produced with:
- PET foam core
- Thicknesses ranging from 10 to 23 mm
- Aluminium skins
The certified version is not standard but a custom variant tailored for applications requiring fire reaction specifications.
A - SKINS OF ALUMINIUM
Thickness mm: 0,5 - 0,8 - 1 (standard)
B - STRUCTURAL ADHESIVE
C - CORE IN FOAM
The sandwich panel COMPOCEL ALF is available on request with:
- skins in different colours
- different types and thicknesses of foam
Dimensions
Applications
Technical datasheet
Technical data sheet for standard panels (dimensions, materials and special finishes on request) |
||||||||||
| TECHNICAL CHARACTERISTICS OF PANEL | ||||||||||
Panel Thickness mm |
from 5 to 100 |
|||||||||
panel size mm |
standard 1250x2500/1500x3000 other dimensions on request |
|||||||||
thickness’ tolerance mm |
± 0,4 |
|||||||||
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 |
|||||||||
core materials |
PET foam/PVC foam |
|||||||||
foam density Kg/m³ |
from 40 to 250 |
|||||||||
adhesive |
Two-component polyurethane |
|||||||||
skin characteristics |
rough/primer/polyester/PVDF |
|||||||||
| PANEL PHISIC AND MECHANIC PERFORMANCES | ||||||||||
type panel (some examples) - Panel Thickness mmtype panel (some examples) - Skin Thickness mm |
10 |
15 |
20 |
25 |
30 |
10 |
15 |
20 |
25 |
30 |
1,0 + 1,0 |
1,0 + 1,0 |
|||||||||
panel weight ‡ Kg/m2 |
6,8 |
7,2 |
7,6 |
8,0 |
8,4 |
7,3 |
8 |
8,6 |
9,3 |
7,6 |
core material |
PET foam |
PET foam |
||||||||
foam density ISO 845 Kg/m³ |
80 |
135 |
||||||||
compressive stabilised strength
|
0,9 |
2,3 |
||||||||
shear modulus CORE ISO 1922 MPa |
16 |
35 |
||||||||
maximum load* ‡ ASTM C 393 † N |
320±30 |
460±50 |
610±60 |
760±80 |
900±90 |
560±60 |
830±80 |
110±100 |
1370±130 |
1640±160 |
deflection at maximum load* ‡ ASTM C 393 † mm |
6±1 |
5±1 |
4±1 |
4±1 |
3±1 |
9±1 |
6±1 |
5±1 |
4±1 |
4±1 |
skins E Elastic Modulus Mpa |
68.000 - 70.000 |
|||||||||
moment of inertia I ** mm4/m |
40600 |
98100 |
180600 |
288100 |
420600 |
40600 |
98100 |
180600 |
288100 |
420600 |
average resistance to peeling *
|
> 440 N/76 mm - 17 Nmm/mm |
> 480 N/76 mm - 23 Nmm/mm |
||||||||
maximum service temperature ** °C |
- 40 / + 80 |
|||||||||
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.
PROCESSING METHODS
Technical data sheet for standard panels (dimensions, materials and special finishes on request) |
|||||
| TECHNICAL CHARACTERISTICS OF PANEL | |||||
Panel Thickness mm |
from 10 to 23 |
||||
panel size mm |
standard 1250x2500/1500x3000 other dimensions on request |
||||
thickness’ tolerance mm |
± 0,4 |
||||
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 |
||||
core materials |
PET foam |
||||
foam density Kg/m³ |
110 |
||||
adhesive |
Two-component polyurethane |
||||
skin characteristics |
raw/primer |
||||
| PANEL PHISIC AND MECHANIC PERFORMANCES | |||||
type panel (some examples) - Panel Thickness mmtype panel (some examples) - Skin Thickness mm |
10 |
15 |
20 |
25 |
30 |
1,0 + 1,0 |
|||||
panel weight ‡ Kg/m2 |
8,2 |
9,8 |
11,6 |
13,30 |
15 |
core material |
PET P90 100 foam |
||||
foam density ISO 845 Kg/m³ |
110 |
||||
compressive stabilised strength
|
1,4 |
||||
shear modulus CORE ISO 1922 MPa |
20 |
||||
maximum service temperature ** °C |
- 40 / + 80 |
||||
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.
| FIRE REACTION | |||
| SECTOR | NORM | CLASSIFICATION | DESCRIPTION |
|
SHIPBUILDING |
FTP CODE 2010 3.18a
0407 |
LOW FLAMESPREAD (Thickness from 10 to 23mm) MOD. B.
|
COMPOCEL ALF
|
|
|
U.S. Coast Guard |
MOD. B.
USCG Approval Nr.
|
COMPOCEL ALF
|
|
|
UNI EN 45545-2 |
HL3 Hazard level |
COMPOCEL ALF
R2 Suspended ceilings, countertop
|
LIABILITY DISCLAIMER: The above data are to the best of our knowledge correct and are intended to give information about our products and their potential applications. No warranty is given or implied in respect of certain properties of the products or their suitability for a particular application. We reserve the right for technical changes without further notice. We guarantee impeccable product quality under our terms of sale.
IMPORTANT
To allow us to offer you a panel with particular finishes or colors 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.