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Construction Materials

August 12, 2017 18:08

Plastering gypsum - what it is and what options are


  • 1 composition plaster
  • 2 Types of plaster
  • 3 main advantages of gypsum plaster
  • 4 Application plaster
  • 5 How to prepare the solution?

plaster beacons Plaster called the building material, which is widely used in the finishing of surfaces.The material is indispensable for carrying out plastering work in internal domestic premises.
Plastering gypsum - an environmentally friendly material, which is based on gypsum, which is a natural component.
Using plaster, you can: create a special microclimate in the room, save heat, reduces noise insulation, improved flame retardancy.

Due to the porous structure of the material in the premises any excess moisture removed, and with an increase in air temperature again saturated with moisture.These properties allow the plaster to maintain a healthy microclimate.
plaster of gypsum become more and more popular today.For the treatment of surfaces it is used more often than the sheets of plasterboard or a mixture of cement and lime.

composition plaster

basis of plaster mixture of gypsum.To improve various properties of the lightweight fillers include various additives and modifiers.Their inclusion improves the adhesion of the composition, reduces material consumption, reduces the time to fully dry.

gypsum plaster produced in the form of dry mixes, which are packaged in kraft bags.Put up drywall is stored in special conditions.Shelf life is not more than 6 months from the date of issue.This period may be limited to improper storage conditions.The storage room should be dry.
plaster gypsum is best suited for finishing surfaces in dry areas.
gypsum plaster is allowed to throw a thick enough layer, removing virtually any bumps, holes or deep damage.

Types of plaster

plaster Knauf Plaster gypsum company VOLMA-layer consists of gypsum binder, and as a lightweight aggregate used supplements, including minerals and chemicals.
This is an excellent material in the lining of ceilings and walls.Using a mixture of plaster provides a surface that has a suitable paint, cladding or wallpapering.
higher quality has plaster Knauf.But it is much more expensive than plaster Volma company.

main advantages of plaster of gypsum

Application plaster can improve the insulating properties of the room, reducing heating costs.
plastered stucco walls have an increased sound insulation, increase the level of fire protection.
In areas improved indoor climate.Walls are able to absorb the excess moisture and release it with the rapid increase in temperature.
Gypsum plaster can hide defects from potential spillage.If you flood the neighbors, after complete drying, usually defects themselves eliminated.
Stucco allows you to create a surface that does not require further finishing work such as putty.
surface is obtained already prepared for final processing.On it can be applied decorative coatings.
If the plaster is applied to the concrete base, the surface pre-primed.
complete drying time of plaster layer does not exceed 5 days.

consumption of gypsum plaster of significantly less composition of cement.
plaster of gypsum can be applied up to 60 mm thick without fear of cracking, delamination or the formation of shell effect.

Application plaster

To apply a plaster layer of gypsum required to comply with certain conditions.
Before applying plaster surface is required to be cleaned from dirt, old paint, dust, old plaster and primed in multiple layers.
works are carried out at a temperature of + 5 ... 25 ° C and humidity of 60%.

How to prepare the solution?

in a clean container filled with water and is filled with the dry mixture.At 0.5 liters requires 1 kg of dry mix.It is easy to calculate that a 30 kg bag of 15 liters of water is required.
resulting mixture was well kneaded using a mixer.The mixed solution was kept for 5 minutes and stirred again.
shelf life of the solution prepared in this way is less than half an hour.During this time you have to develop a ready solution.
new solution is prepared in a clean container.

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How plaster wall stucco

solution of gypsum can throw on the surface of up to 50 mm thick, and in some places up to 80 mm.The solution was applied on the walls and upwards leveled rule.
to apply the solution to the ceiling, you must first fix the reinforcing mesh.
Surplus material can be cut after 40 minutes.

If necessary, stripped and plastered surface is moistened with water and rub clean sponge float.This is done on plaster, not a finger is pressed (about 10 ... 20 minutes after stripping).
to get the best coverage you need in the room during the day to eliminate drafts, direct sunlight, do not apply intensive drying.At the end of the cycle
room ventilated necessarily, excess moisture is removed.
to fully dry the plaster layer is required up to 14 days.At the same time the surface becomes light and dry.
Remember!Under painting suitable surface with humidity no more than 1%.
gypsum surface can not be painted with lime paints.

From ready-mix plaster Knauf recommend using a mixture of domestic and Volma or miners.

To prepare a plaster solution with your hands is best to use plaster, natural or artificial fillers.
Prepare yourself stucco can only be a professional builder.
Beginners plasterers better to use ready-made dry mix, recommended above.

Below are recipes for plaster mixtures with their own hands.

Recipe 1
Ingredients: Ekonips mixtures bag Rotband ABS or pick up a bag of sawdust as possible the small size and add 3 ... 4 bag plaster.
Mix thoroughly dry all its components to obtain a homogeneous mass.

way, the resulting mixture can be stored in this form.It is only necessary to pour it into a dry plastic bags.

mixture used in small pieces.It is added to a small amount of water, and the mixture was diluted with a mixer until smooth.
Sawdust serve as vlagozaderzhivayuschego element.Presence allows you to adjust the layer of sawdust drying speed.Zoom speed can be setting solution by dobkavleniya wallpaper paste into it.

Remember!With gypsum is not compatible wallpaper glue CMC.

Recipe 2
per kilogram of gypsum is recommended to take three kilograms of chalk.The resulting mixture is added to a 5% solution of wood glue.In the first stage
chalk carefully crushed, mixed with dry gypsum.
poured into a clean container and mix the right amount of glue is added gradually.You need to get a semi-liquid, without lumps, light gray mass.

Remember!This filler composition dries quickly after application.

added just before use glue mixture.
This mixture is recommended for finishing plastering works.

Recipe 3
Take 2 pieces of plaster 1 part linseed oil and desiccant 1/10 of NF-1.Desiccant is used to accelerate the speed of drying the composition.

Instead of gypsum is allowed to use chalk, which allows the use of a mixture of a long period of time.

Recipe 4
To prepare the plaster with Slow drying speed it is advisable to use a mixture on the basis of lime.
Slow drying solution is capable of applying a thin layer.
prepared solution of 1 kg and 3 kg of gypsum mortar.
in a clean container is diluted with water to obtain a gypsum plaster test, and add small portions of lime mortar.The composition is thoroughly mixed for one minute.More
should not interfere.This reduces the strength of the solution.

sure to use individual safety equipment when preparing plaster hands.Wear masks, goggles, rubber gloves.

Good luck!