surface and environmental conditions It should be free of dirty material such as dust, oil and paint. The surfaces such as extremely dry, hot and highly absorbent should be moisturized with water. The surfaces of the ceiling should be roughened before applying the plaster or undercoated with material to ensure attachment of the mortar. It should be paid attention that there is no air current and circulation in the environment during application. The application temperature should be between +5 to +40 °C application 5,5-6,0 liters of clean water is down into mixture bowl; 10kgs of PERONAT plaster is added by sprinkling into the water. It is awaited for a period of approximately 2-3 minutes in order to the plaster absorbs the water. It is mixed with a hand mixer or with the help of a trowel in order to obtain a homogenous mixture. The prepared morter is applied on the surface by a steel storage At most 15 bags should be stockpiled one on another at a dry place. The bags must not be in contact with the floor and they must be protected from humidity and condensation. It must be used within 6 months after production date.