Smooth marmorino finish on cement screed.

Structure type

Cement-based screed with a marmorino-effect microcement finish.

Detail

Finish coating on a cement-based screed.

Application cycle

1. Aerated concrete, or a mix of cement and polystyrene, expanded clay or other lightweight aggregate, at least 5 cm thick, laid on the floor structure as a lightweight insulating screed that can also house the building services and provides an even surface for laying the screed.
2. Existing screed, or RALLK Massetto K BS cement screed (normal drying) for low-profile radiant heating (2-4 cm), or fast-drying RALLK Massetto K RA, 4 cm thick or more, with or without radiant heating.
3. RALLK Marmo K Floor finish coating, also available in custom earth tones, based on air lime, hydraulic binders and celluloses, for smooth, walkable marmorino-effect surfaces that can later be ground if desired and protected with natural or synthetic waxes.

Additional information

1. When laying the finish coating on existing screeds, check that they are sound, cohesive and free of hairline cracks.
2. When laying the finish coating on existing screeds with cracks, first establish their cause and make sure they are stable and no longer developing. For cracks wider than 1 mm, open them up and fill them with RALLK Kerasiv K Flex powder adhesive, embedding a 150 g/m² glass fiber mesh if needed.
3. If required, the finish coating can be ground or sanded 1 week after laying, and in any case only after checking that it has reached sufficient strength.
4. See the individual product data sheets for application methods and precautions.