HDA / Self-levelling compound for wooden floors

Surface preparation

The base must be dry and firm, all cracks and voids must be filled
Clean the surface from less persistent and/or separable layers
In places where the floor connects to the wall, columns, etc., damping tape should be used
The distance between the logs should be < 65 cm, the thickness of the boards should be < 20 mm
Wooden surfaces must be primed with SAKRET UG (concentrated) primer. Prime the OSB boards with SAKRET QG primer. When in doubt, prime and apply HDA on a small surface area
Absorbent surfaces must be primed with the primer SAKRET UG (in a ratio of 1:2)
Dry and highly absorbent surfaces must be primed twice!
It is forbidden to use SAKRET HDA on gypsum or anhydride bases!
When using SAKRET HDA on heated floors, the heating must be turned off 5 days before and must not be turned on 28 days after the application of the material!

Usage

Mix SAKRET HDA in a clean container with cold water until a homogeneous mass without lumps is formed
It is recommended to use a mixer with 600 turns per minute
After ripening time ~3 min. mix again
Pour the mass onto the prepared surface (layer thickness >3mm) and level with a needle roller
Deformation joints must not be filled with leveller
When levelling the bases, the amortizing material should be incorporated around the perimeter

Strength class	Flexural strength class	Consumption	Finishing flooring may be laid	Fire safety class	Storage time	Abrasion resistance class (according to LVS EN 13813)
C25	F7	1,6 kg/m²/mm (where the layer thickness is 10 mm)	After ~ 48 h	Euroclass A1 (non-flammable)	6 months	A12