(Previous date 26.06.2013)
Yki rouhepinnoite - Rough Coating
For plain concrete substrates and screeded surfaces of concrete and masonry structures in socle and wall surfaces. Also suitable for building boards. The screed should be a cement or cement-rich lime-cement mortar. Minimum grain size approx. 2 mm.
Trowel, for spray application, use plaster pump, min. nozzle size 5 mm or funnel sprayer. Coating applied with trowel is finished with Tikkurila plastic float. Sprayed coating can be left as such or finished with Tikkurila plastic float.
Touch-dry the following day
sD,H2O < 0,2 m
w24 < 0,2 kgm-2h-0,5
Remove dirt, dust and salts from unpainted surfaces. Wash down mouldy or moss-covered surfaces with Homeenpoisto Mould Removal according to the instructions. Smooth and glass-like concrete surfaces have to be mechanically processed to create sufficient texture and to remove cement paste. Level block surfaces and uneven concrete surfaces with Yki Värilaasti, Tintable Render for Socles or Yki Levelling Mortar according to instructions.
Previously painted surface:
Remove dirt, dust and salts. Wash down mouldy or moss-covered etc. surfaces with Homeenpoisto Mould Removal according to the instructions. Remove flaking, poorly attached paint coats. Choose the removal method according to the strength of the substrate and the type of paint to be removed (e.g. steel brushing, high pressure washing with hot water or water-sand-washing).
Necessary leveling will be made with Yki Värilaasti, Tintable Render for Socles or Yki Levelling Mortar according to the instructions of the product data sheet.
Application by steel trowel:
Apply by steel trowel a coat as thick as the grain size at a time to an area of approx.1 m². Grind the surface immediately (max. after 15 min.) by pressing lightly with Tikkurila plastic float. If the float does not move lightly, there is too much of coating. Remove the excess coating with a steel trowel. Adjust limits of pauses and borders of various cans to an unobtrusive spot.
Application by spraying e.g. with a plaster pump or a funnel sprayer:
Apply by spraying from approx. 1 m distance in a circular motion upright with the surface. Uniform surfaces are sprayed without interruption. Sprayed surface can be left as such or it can be grinded with a Tikkurila plastic float (see application with a steel trowel). The grinding work is started immediately (max. after 15 min) after spraying by pressing lightly with Tikkurila plastic float.
Protect windows before priming and coating. Clean possible splashes immediately from the windows.
Yki Rough Coating is not suitable for coating of horizontal surfaces of e.g. cold retaining walls or other similar horizontal surfaces.
Homeenpoisto Mould Removal and thorough rinsing can be used for the removal of alga and mould according to the instructions. NOTE! After mould removal the surface always requires a new treatment.
according to Regulation (EC) No. 1272/2008
Safety data sheet