LAP / LAP Fine / Acoustic Plaster

For creating light, heat-insulating and sound-insulating surfaces on various mineral bases, fibrolite, ceramic bricks and blocks, aerated concrete blocks;
Suitable for plastering walls in one or more layers, forming a layer of up to 70 mm;
For filling various cavities, where high mechanical strength of the material is not required;
Workable manually or with plastering machines;
For outdoor and indoor works.

The base must be firm, dry, durable and without cracks;
Clean the base from less durable and/or separable layers;
Water-absorbing surfaces must be primed with SAKRET BG primer or diluted SAKRET UG primer in a ratio of 1:3. To create an adhesion layer on smooth surfaces, prime with quartz primer SAKRET QG;
Mix SAKRET acoustic plaster in a clean container with cold water until a homogeneous mass without lumps is formed;
After ripening time, approx. 3 minutes, mix again;
The material that has started to harden must not be diluted with water!
All works must be carried out in accordance with the regulations for plastering works. To obtain a very flat surface, use fine-grained plaster SAKRET LAP Fine for the final layer.

Thermal conductivity, λ	Noise blow impact (100mm thick layer SAKRET LAP/LAP FINE and 30mm mineral wool (density from 80-110 kg/m3 ), in compliance with ISO 10140-3:2011	Consumption	Volume of ready mortar	Strength class (according to LVS EN 998-1)	Fire safety class	Sound absorption rate, in compliance with ISO 354:2003 (Layer thickness 40 mm)	Sound absorption rate, in compliance with ISO 354:2003 (Layer thickness 90 mm)	Layer thickness	Water for mixing 12.5 kg of dry mixture	Volumetric weight of material, kg/m³
0,117 W/m*K	ΔLw=37 dB	Approx. 20 kg/m² of dry mixture, if layer thickness is 50 mm	From 12,5kg to approx. 32l	CS I	A1 (non-flammable)	αw=0,35, class D	αw=0,45, class D	20-70 mm	6,8 – 7,0 l	~450