DUROFLOOR-CMT is a pourable, self-leveling flooring based on cement and epoxy resins, without solvents. It offers the following advantages:
- Simple and affordable application.
- High early and final mechanical strength.
- Superior adhesion to the substrate.
- High vapor permeability.
- Exceptional self-leveling capacity.
- No corrosion action (safe for steel reinforcement).
DUROFLOOR-CMT is used for:
- repairing,
- smoothing, and
- leveling
concrete floors to be covered with:
- epoxy flooring (DUROFLOOR)
- polyurethane floorings
- plastic floorings,
- carpet,
- wooden parquet, etc.
It is also applied when concrete is relatively fresh in order to create the proper substrate-of at least 2 mm thickness-for the application of epoxy layers, to avoid problems of detachment etc. Also, it is appropriate as final flooring, at a thickness of up to 3mm, for smoothing, leveling and increasing surface resistance to mechanical loads.
Substrate
The surfaces to be treated must be:
- Stable and dry or slightly wet, without standing water.
- Clean, free of materials that prevent bonding, such as dust, loose particles, grease, etc.
For very absorbent or porous substrates, the surface should be first primed with the water-based epoxy primer EPOXYPRIMER-500, as it is or diluted 30% with water by weight. The primer is applied by brush or roller in one layer.
Primer consumption: 200-300 g/m2.
The application of DUROFLOOR-CMT follows after the primer can be walked on. (Approximately 6 hours later, depending on the temperature and humidity of the application area).
Mixing of DURFLOOR-CMT
Components A, B and C are packaged in predetermined mixing proportions. At first, component A must be stirred well in its container and then should be moved to a clean vessel of approx. 30 l volume. Subsequently the entire contents of component B should be added to component A. Mixing of the two components should carry on for approx. 30 seconds, with a low-revolution mixer (300 rpm). It is important to stir the mixture thoroughly near the sides and bottom of container, to achieve uniform dispersion of the hardener. Finally, the component C is added under continuous stirring. Mixing is done with a low-revolution mixer and is carried on until the mixture becomes completely uniform (approx. for 3 minutes). No water should be added in the mixture.
Application procedure
DUROFLOOR-CMT should be applied at a thickness of up to 3 mm by using a notched trowel. Alternatively a large rubber trowel (squeegee) or a metal trowel can be used as well. In order to release air trapped into the self-leveling layer, the surface must be rolled over with a special spiked roller. This prevents formation of bubbles and helps to achieve a uniform thickness.
