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SOTTOVOCE

SOUND-ABSORBING PLASTER FOR REVERBERATION CONTROL IN INDOOR SPACES

SOTTOVOCE is Edilteco's first lightweight sound-absorbing plaster, the result of more than six years of research and development. Sprayed on interior walls and ceilings, it reduces reverberation so that people can talk and listen without raising their voice – in schools, cafeterias, conference halls, places of worship, restaurants and theaters.

Hydraulic binders and lightweight components give a continuous, seamless surface in white, gray, anthracite gray or black, suitable for exposed finishes. Laboratory tested at 1 3/8 in (35 mm), it reaches αw 0.65, and it is classified A2-s1,d0 for fire safety.

Only water is added on site: the mix is pumped and sprayed with a properly equipped plastering machine, on plasterboard, concrete, brick and steel, in new buildings and renovations. From 1/2 in (13 mm) thickness.

NOTE

Seamless finish in 4 colors
αw 0.65 at 1 3/8 in (35 mm)
A2-s1,d0 fire reaction

Sound absorption at 1 3/8 in (35 mm): αw 0.65 (UNI EN ISO 11654); αp 0.09 / 0.35 / 0.84 / 1.00 / 0.91 / 0.98 at 125-4000 Hz.
Dry density 12.5 lb/ft³ (200 kg/m³); thermal conductivity 0.4 BTU·in/(h·ft²·°F) (0.058 W/(m·K)) (UNI EN 12667).
Compressive strength 174 psi (1.2 N/mm²); flexural strength 15 psi (0.1 MPa); water absorption 0.1 kg/(m²·min⁰·⁵); μ 9 (EN 998-1).
Reaction to fire A2-s1,d0 (UNI EN 13501-1).
Thickness from 1/2 in (13 mm) (single coat); above 9/16 in (14 mm): first coat approx. 13/32 in (1 cm), then coats of max 0.984 to 1.18 in (2.5-3 cm) after 4-24 h.
Mixing water 1.3-1.6 gal (5.0-6.0 L) per bag; plastering machine type PFT G4 or similar, 9/16 in (14 mm) nozzle; primer EDILKRONOS UNIVERSAL.
Consumption approx. 1 lb/ft² per inch of thickness (2.0 kg/m² per cm); application 41 / 95 °F (+5 / +35 °C).
1.7 ft³ (47 L) bags; pallet of 52 bags. Colors: white, gray, anthracite gray, black.

PACKAGING

Acoustic correction in schools, cafeterias, conference centers, religious buildings, restaurants and theaters.
On plasterboard, concrete, brick and steel (with EDILKRONOS UNIVERSAL primer).
New construction and renovation.
Paintable with ECAP® STP or ECAP® SP, by spray only.

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