LITHOCELLNatural Stone M4
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LITHOCELL® Natural Stone – MA4

MA4 is a sandwich panel with a cosmetic finish consisting of a thin marble slab (4 mm). It has an aluminium honeycomb core and skins made of glass fibre fabric. It is obtained by gluing a marble finish slab to a panel without finish such as the RAWCELL® Fiber panel (bonding performed by external marble workers, our partners, customers). Main fields of application: construction, furniture, shipbuilding, lifts.

Layers

1) INTERNAL CORE
aluminium honeycomb
(Starcell production)
aluminium alloy: 3000 series
density: 29 – 50 – 56 – 65 – 80 kg/m³
cell diameter:
6.35 mm (standard);
10 – 12.7 – 19 mm (on request)

2) ADHESIVE
thermoplastic or thermosetting
(Starcell formula)
bonding of finishing materials
performed by our customers and
partners who work with natural stone

3) EXTERNAL SKINS
glass fabric impregnated with epoxy resins
(impregnated fabric weight: 1000 g/m² per side)

4) FINISHING
4 mm thick marble
slab

Category:

Technical sheet of the panel

LITHOCELL® Natural Stone - MA4
PRODUCT ID CODE
Code structure Value in this sheet Meaning
LITHOCELL® family to which the product belongs
Natural Stone subfamily to which the product belongs
MA4 (n/n)(n-n) panel type
MA4 (n/ )( ) 6,35/ = size (mm) of the hexagonal honeycomb cell
MA4 ( /n)( ) /n = panel thickness (mm)
MA4 ( / )(n-n) 0,5 - 0,5 thickness (mm) of the two skins
S(n) 8 = standard dimensions (mm) - S(8) = 1.300 X 3.050
CHARACTERISTICS OF MATERIALS AND COMPONENTS
Front finishing layer
material: marble slab
standard thicknesses (mm): 4,0
surface appearance: smoothed - bush-hammered
adhesive on request: bonding performed by specialized external laboratories
Structural skins
material: glass fibre roving fabric
type: (impregnated weight 1000 g/m² - 600 tex)
standard thicknesses (mm): 0,5
impregnation: epoxy resin (Starcell formula)
surface appearance: raw
standard adhesive: thermoplastic film (Starcell formula)
on request adhesive: epoxy film
Hexagonal cell honeycomb
material: aluminium foil
type: 3000 series alloy
foil thicknesses (µm): 60 - 70
density (kg/m³): 29 - 50 - 56 - 65 - 80
standard cell sizes (mm): 6,35 - 10 - 12,7 - 19
PHYSICAL AND DIMENSIONAL CHARACTERISTICS OF THE PANEL
Dimensions
standard (mm): S(9) = 1.300 X 2.550 - S(13) = 1.550 X 3.050
special (mm): maximum width: 1.550 - maximum length: 4.300
tolerance (mm): ± 1 (squared panels)
Thicknesses
standard (mm): 5 10 12,7 15 20 25 30
special (mm): from 4 to 60
tolerance (mm): ± 0,3
Weights*
weights referred to standard thicknesses (kg/m²): 3,06 3,39 3,56 3,71 4,04 4,36 4,69
tolerance (kg/m²): ± 0,2
*The weights refer to panels with the following characteristics: cell size (mm): 6,35
foil thickness (µm): --
thickness of the skins (mm): 0,5
MECHANICAL CHARACTERISTICS OF THE PANEL
The characteristics of this sheet refer to the following type of panel:
LITHOCELL® Natural Stone - MA4 (6,35/n)(0,5-0,5)S(8)
Starcell's Technical Department will gladly work with customers to determine the features of other panel configurations
Type Standard Characteristic value
standard thicknesses - 5 10 12,7 15 20 25 30
maximum load* (N): DIN 53293; EN 14125 251 479 515 1.583 1.835 2.337
deflection at Max* load(mm): DIN 53293; EN 14125 11,42 4,41 6,12 8,86 8,01 12,59
resistance to peeling* (N): DIN 53295 > 130 (min.) - >350 (average)
compressive strength* (Kg/cm²): UNI 4913 21,97 ± 10
elasticity modulus (E)* (N/mm²): DIN 53293 14.460 16.130 12.169 18.817 23.777 19.022 61.840
moment of inertia (I)* (mm⁴): DIN 53293 253 1.128 2.363 3.942 9.506 18.758 32.634
operating temperature (°C): - from -40°C to +80°C
maximum distributed load** (Kg): - 2.000
deflection**(mm) for a distributed load of: 300 kg - 1,50
(*) values obtained by Starcell's Internal Laboratory.
(**) value obtained on a panel held on 4 sides: size (mm): 1.000 X 1.000
thickness (mm): 20
cell size (mm): 6,35
CERTIFICATIONS
Type Standard Sector Class
fire behaviour of the honeycomb ISO 1182 0
PROPERTIES
  • Very high resistance to bending, shear and tensile stress.
  • Excellent resistance to peeling.
  • Excellent dimensional stability, also in terms of flatness over time.
  • Very good compressive strength (due to aluminium honeycomb).
  • Maximum mechanical performance, compared to the high lightness of the panel.
  • Excellent weather resistance.
  • Wide operating temperature range.
FIELDS OF APPLICATION
Typical applications for the LITHOCELL® Natural Stone - MA4 panel include building façades, interior design and lift systems.
STORAGE
The LITHOCELL® Natural Stone - MA4 panel is a product in the “semi-finished products” category and therefore is subject to further processing; we recommend storing the panels horizontally in a closed and dry environment, possibly away from heat sources and to support them along their edges.

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