How to apply plaster venetian plaster finish how to

How to apply plaster – Repairs should always start with plastering , ie applying plaster or putty. It will allow to align plastering walls and prepare them for further decorating . Often have to make repairs with their hands, and therefore, not all know how to apply the plaster . Meanwhile plastering – this most important and time-consuming step of having to repair , its technology .

Today we consider the steps of applying plaster on the walls and ceiling , and those who already know refresh knowledge.

Technology plastering

1. It is important before starting work to make preparations .

Clean the surface of old plaster and dirt.
After the first cleaning walls often remains Nabeul – layers of glue , paint and wallpaper residues . All this must be removed to prepare the surface and re- plaster it .
Finishing materials must have good traction with the surface of the ground , so pre- inspect it and repair .

Walls plastered surface should be smooth and free of cracks . Check the docking location of the walls. If you have cavities , they need to patch up . Peeled old wall coverings need to align with a finishing mixture 2-3 times and carefully sanded . To control the drying of plaster used hygrometer .

When plastering plaster bases must first be primed them . Connection joints between concrete slabs cover the metal mesh .
Also, the solution should not be applied on frozen ground.

After such preparation the dry mixture in the proportions pour water at room temperature ( in the cold water can be slightly warmed ) , then all stir well . Some mixtures after mixing to survive for some time , and then stir again .

Walls of brick or concrete blocks before plastering moisturize, and you can use a vacuum cleaner in spray mode .

Plaster curing speed matters. If you are preparing a solution themselves , while finishing the interior to the solution will need to add gypsum , while Exterior finishing or wet rooms – cement with latex adhesive PVA – 20% by weight of cement .

Prepared surface is first treated with a primer composition for the absorption of the base . Primer – is an aqueous polymer solution capable of penetrating deep into the porous wall structure , which enhances the surface layer of the base and eliminates settling of dust and maximizes the level of adhesion of repair compositions with a base material .
After the primer has dried bumps and potholes damaged areas are sealed cement-lime mortar .

2 . Stages plastering

Plaster applied to the surface in three stages. Before applying each successive layer the previous layer carefully leveled . Especially carefully leveled the last layer of the soil.

The first layer – scratch coat . Throw on the surface with a trowel or shovel thick continuous layer solution that creates bonding layer between the surface and the next layer of plaster .
When  should not work the entire arm , but only brush . For a thin layer and a wide swing to be sharp , and for a thick and narrow – smooth.

The second layer – the ground. It is applied after hardening or setting of the first layer .
Primer is applied in one or two layers or more, depending on the surface condition. Never apply a thick layer of mortar at a time , as it will crack when dry .

Thickness of the layer of plaster on concrete ceiling can reach 5 mm.
A brick , not to be seen laying seams , plaster is applied at least 10 mm .
A layer on wooden ceilings – not less than 25 mm.
If differences of height 3.5 cm, on the surface of the first metal needs to fix a reinforcing mesh , as it – the plaster . Metal grid attached straps , hooks or ” pinks ” with wide hats .

When the plaster is dry, apply a layer of leveling putty.

When plastering falcon in his left hand is taken falcon dialed back side of a trowel and spread on the solution surface. On the wall solution with Falcon applied from the bottom up , and the ceiling – short straight strips parallel to one of the husks .

When plastering trowel with the entire length of the working plane trowel impose a solution in the form of beds. Then trowel pressed longitudinal side to plastered surfaces and advanced along the wall – from the bottom up to the ceiling – from themselves. Web width spreader should not be less than 120-200 mm.

Plaster to obtain a uniform solution at overlaying the surface allow the pressure force on the tool .

Clay quickly smoothed trowel or rule. If you have any defects can be eliminated : add solution or remove it surplus. Note smoother than get a primer layer , the easier it will be applied  .

Third layer – Covered . Float to align its thickness 2.3 mm.
solution prepared in the same manner as the solution for the soil. And in order to acquire a more even surface , and could do without spackling , use small and sifted sand.

For a more durable finish coat adhesion and soil  applied when the ground is already seized , but still wet . If the ground is dry before applying the finish coat it moistened with water .

The finishing solution was coated directly on the basic plaster after hardening. A solution containing gypsum is applied after application to the surface of the plaster core , and a finishing latex cement mortar is applied onto the plaster base layer in one hour.

3 . After setting produce grout surface.
Grout can be done only after the solution hardens, but not completely dry . If Covered dried up , it should be moistened with water .
Grout make a circular motion , press firmly to the surface of the grater .
Excess coating solution after the surface clean and can be reused.
Each layer of plaster dried up sand. Subsequent layers of plaster applied after complete solidification of the previous ones.

The finished mixture is kept indoors, preventing it from drying out. When the plaster hardens and dries , start putty .

After working tool should be cleaned from plaster and wash with warm water.
By plastering refers alignment ceiling, floor ( screed ) and surface preparation for laying work .

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