Solvent-free one-component primer. Where to use: - To prepare flat, compact and non porous substrates such as ceramic tile and stone material floor and wall coverings before the application of MAPEI smoothing and levelling compounds, - Treatment of poured asphalt, wood, chip-board, PVC and linoleum surfaces. - Protection from moisture for wooden surfaces. Wait until Mapeprim 1K becomes transparent and then apply the smoothing compound. If installation will be carried out after 24 hours of the application of the primer, spread fine sand over the still fresh Mapeprim 1K layer. Use Mapeprim 1K only over dry surfaces and not subject to rising damp.