Lustra Marble Venetian Plaster is a lime-based Marmorino containing very small marble powders (their grain size is only 50 microns). This allows you to achieve extremely shiny finishes. Unlike other Venetian plasters, its surface has no alternation of matt and polished areas, but is, on the contrary, uniformly glossy. Thus, Lustra Marble is the ideal material to create mirror Venetian plaster walls.
Due to its extremely fine-grained nature, Lustra Marble possesses practically no pores, which allows for easy waterproofing. This characteristic makes Lustra Marble particularly suitable for bathroom walls, except for wet areas such as shower walls, where it may be prone to mould. Due to its fine texture, Lustra Marble requires thin coats, resulting in low consumption per square meter and higher yield than other Marmoretto.
Document type Technical Data Sheet
Name Lustra Marble
Description Natural, lime-based material for decorative finishes on interior wall surfaces. Naturally
anti-mould and breathable. It belongs to the family of Venetian polished plasters
(Marmorino) of which it is the glossiest and with most visible trowel movements, having
an extra fine grain. Ideal for mirror walls effects.
Composition Aged, slaked lime and selected marble powders.
Grain size Marbles: 50 microns, Lime: 100 microns
Appearance Paste
Colour White, it can be tinted in any colour with lime-compatible colourants
Packaging 20 kg net polyethylene containers
7 kg net polyethylene containers
Application By hand, with a steel trowel
Type of Surface Interior walls
New Wall Surface
Plaster: no priming necessary
Gypsum / Plasterboard / Medium Density: one coat of DEKO PRIMER
Old Wall Surface
Plaster: one coat of DEKO PRIMER
Fast drying / Limewash: brush down and apply one coat of DEKO PRIMER
Polished Lime: Abrade, brush down and apply one coat of DEKO PRIMER
Washable Paint: one coat of DEKO PRIMER
Dilution Ready to use
Consumption 750 g/m2 after three coats
Drying 3 hours at 20°C / 68°F to the touch
48 hours at 20°C / 68°F below the surface
180 days stable
Application temperatures min 5 max 30°C – R.U. < 85% ca
Coat Thickness 0.7 – 0.9 mm for a total of 3 coats
VOC Classification EU Directive 2004/42/CE: EU limit value for this product (cat A/l – water-based
decorative effect coating): 200 g/l (2010). This product contains less than 1 g/l of VOC.
Specific Weight 1.4 ± 0.2 (kg/l)
pH after 30 days 12.5 ± 0.50
Vapour Permeability SD ~ 0,04 m (DIN 52 615)
Flammability European Class of Reaction to Fire A1: non-combustible, no contribution to fire
Mould Resistance ASTM D 3274 – “Standard Test Method to evaluate the degree of surface
disfigurement of paint by microbial, fungal and algae growth.
Result: Front Panel 10/10/10 Back Panel 10/10/10 = no growthJanuary 24 TDS Grassello 2 of 4
Scrub Test Resistance ASTM D 2486-06 method A = was used: scrubbing fine sand + metallic brush for
10,000 cycles
Impact Test UNI EN ISO 6272-2-2006. 1 kg doming punch was dropped from different heights and
only at the height of 8 cm., it left a 5.5 mm. dent in the surface and a tiny crack
appeared around its circumference.
Pencil Hardness ASTM D3363- Pencil hardness 5H
Shore Hardness Norm ASTM 2240 average
Adhesion Norm UNI EN 13892-8 2004 average value = 2,0
Shelf life 36 months when stored according to the recommended guidelines
Storage In original sealed packaging between 5° - 35°C in a dry, dark environment
Safety Norms Irritating. / Risk of serious damage to eyes. / Irritating to the skin. / Keep out of children.
/ Avoid contact with eyes. / In case of contact with eyes, clean immediately with water
without rubbing them, and consult a doctor. / Wear suitable gloves and eyes / face
protection. / In case of ingestion of the products, consult immediately a doctor showing
him the can or the label of the product. Danger labelling under directives 67/548/EEC
and 1999/45/EC and following amendments and adjustments. The product must be
transported, used and stored according to current standards of hygiene and safety.
Disposal Product must be disposed of according to norms and regulations in force. Containers
must be sent for recycling. Follow directions on the packaging
Application Instructions WARNINGS
Water on the surface of the material in the bucket is normal and should be removed
before use or addition of colourants. All lime-based products lose their viscosity when
mixed and need a period of 6/12 hours after mixing to regain their density. This
product is dense, and ready for use; thus it may be necessary to use an appropriate
drill attachment to stir for a few minutes to reduce viscosity. Choose the colour and
add the toner additive to the container and continue mixing until a homogeneous shade
is obtained. Let the product rest for about 5 hours before you begin to use it.
We recommend using materials from the same production batch for the same project.
If you must use different batches, we suggest mixing their material together to avoid
any slight variations in shading.
To ensure proper usage, dilution, and application of the products mentioned in these
pages, please consult the corresponding technical data sheets.
When preparing the surface and applying the materials, we advise using appropriate
tools and personal protective equipment (PPE).
During application and for the following 72 hours, protect the surfaces from sudden
temperature change, direct sun light and water. Don’t apply in temperatures below 8°C
or above 35°. During application make sure that the work area isn’t too damp to avoid
problems with application times.
Remember to have a strong light parallel to the wall and situated on only one of the
two sides of the wall you are working on (usually on the same side as other sources of
light such as windows). In this way the shadow of the trowel allows you to see the
actual state of the finish. Every so often, during the second and third coat, the lightJanuary 24 TDS Grassello 3 of 4
should be moved so that the wall doesn’t dry out too much in one spot from the heat of
the lamp.
APPLICATION
Protection of the work area: Masking tape and protective material over the baseboards
and around windows and doors.
STUCCO Lustra Marble is a very thin material. For this reason, it has to be applied on
very smooth surfaces.
Using approximately 350-400 g/sqm, apply this coat on the primer taking care to apply
it evenly and without ridges. Make sure not to polish this coat, as it will lead to
adhesion problems in the final coat. You can remove any ridges with the help of a
spatula or light sanding.
Dust the surface and apply the second coat. Begin applying the second coat, after the
first is completely dry, using about 250-300 g/sqm. Make sure that the surface is as
smooth and ridges-free as possible, but do not induce any shine.
Apply the third coat of STUCCO Lustra Marble when the drying process of the second
coat is beginning. Use about 120 g/sqm for the final coat. For this coat, use a clean
stainless-steel trowel well prepared with the edge of the blade well-polished and
rounded, not sharp. Go over several times with the trowel to polish the surface. The
wall becomes shiny by pressure applied by the blade of the trowel on the wall. A final
polishing can be done with a non-woven fabric.
SPECIAL EFFECT: To obtain a spatulate effect it is recommended to apply the second
layer with single small strokes of the trowel alternating a full space to an empty space
and returning after a few minutes on the same area to complete the application by
putting spatulates/strokes of material where we left empty spaces. The last coat will be
applied normally
Finish Protection Interior: HYDROCALCE / BEESWAX / MINERAL WAX / MARSEILLE SOAP
A protective treatment is optional in most circumstances. It is however necessary in
bathroom, kitchen and splashback walls.
After a minimum of 24 hours, at least one coat of the following can be applied:
A) MARSEILLE SOAP protective coating with a steel trowel. After 12 hours, go over
the surface with a cloth to remove the coat of surface powder produced by unabsorbed
soap.
B) NATURAL BEESWAX applied with a sponge. After a little while, before it dries, rub
vigorously with a woollen or soft cloth to obtain an even polish.
C) MINERAL WAX can be applied. First apply a coat of BEESWAX and soon, once it
is completely dry, a very thin layer of MINERAL WAX, which gives an extra shine effect
and a strong and durable water resistance.
Maintenance Little maintenance is needed, brushing off dust occasionally
Tools SI TROWEL, CORNER TROWEL, BIANKO, SCRAPERS, NON-WOVEN FABRIC
Clean with water immediately after use
Complements METALLIC BEESWAXJanuary 24 TDS Grassello 4 of 4
We have drawn up the material presented above to the best of our technical and experiential knowledge. Nevertheless,
our suggestions and recommendations are not guaranteed. All responsibility for the obtained results lies solely with the
method and conditions adopted for the application of the product. Such indications constitute valid support for verifying
the product's suitability for the specific case. We reserve the right to make modifications to the present information