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Sandwich Panels, Aluminum and Thermoplastics honeycombs and Foams
PET-STEP is a lightweight sandwich panel with a core in PET foam with glass fibre reinforced with epoxy resin.
This panel offers unique characteristics since it combines lightweight with high mechanical properties. The application of this panels for example permits huge savings as far as weight and thickness of the slabs of natural stones, such as marbles and granite and mosaics are concerned. In this way, also the costs of these materials can be reduced.
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A - FIBREGLASS IMPREGNATED B - CORE
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TECHNICAL FEATURES
Technical data sheet for standard panels (dimensions, materials and special finishes on request) |
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TECHNICAL CHARACTERISTICS OF PANEL |
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panel thickness mm |
from 8 to 60 |
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panel size mm |
standard 1000x2500 other dimensions available on request |
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thickness’ tolerance mm |
±0,4 |
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dimension’s tolerance mm |
± 30 |
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skins’ thickness mm |
0,4 |
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Impregnation |
epoxy resin |
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glass fibre skin type |
Glass fibre Plain 500 gr/m² 600 tex |
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core materials |
PET foam core |
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core thickness µm |
from 7 to 60 |
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diameter of honeycomb mm Ø = mm |
from 3 to 19 |
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core density Kg/m³ |
from 40 to 250 |
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adhesive |
two-component epoxy |
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PANEL PHYSICAL AND MECHANICAL PERFORMANCES |
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panel thickness mm |
10 |
20 |
30 |
10 |
20 |
30 |
panel weight ‡ Kg/m2 |
2,9±0,3 |
3,7±0,3 |
4,5±0,3 |
3,4±0,3 |
4,8±0,4 |
6,1±0,4 |
| core material | PET foam core | PET foam core | ||||
| foam density Kg/m³ | 80 | 135 | ||||
compressive strength ASTM C 365-365 M MPa |
0,83 |
2,3 |
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shear modulus MPa |
16 |
35 |
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| yield load ASTM C 393† N | 220 | 560 | 800 | 390 | 780 | 1400 |
| deflection at yield load ASTM C 393† mm | 16±2 | 11±1 | 7±1 | 26±2 | 14±2 | 10±1 |
| skins E Elastic Modulus ** Mpa | 28’000±1’000 | |||||
| moment of inertia I mm^4/m | 18'400 | 76'000 | 174'000 | 18'400 | 76'000 | 174'000 |
| middle resistance to peeling ** ASTM D1781 | 265 N/76mm - 17 Nm/m | 300 N/76 mm - 23 Nm/m | ||||
| thermal conductivity (referred to foam only) a 23°C W/(m·°K) | 0,034 | 0,037 | ||||
| thermal transmittance U (referred to foam only) a 23°C W/(m²·°K) | 3,8 | 1,8 | 1,2 | 4,1 | 2,0 | 1,3 |
| service temperature ** °C | - 40/ + 80 | |||||
** Tested by Internal Laboratory
*** Approximate value
† Sample dimension with 4 support points (L, W) 540x50 mm
STANDARD DIMENSIONS (other dimensions available on request)
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.