How to close up gypsum cardboard seams on a ceiling

How to close up gypsum cardboard seams on a ceiling

Gypsum cardboard it is easy to mount, do of it simple and difficult designs on a ceiling. He does not create load of overlappings. A basis of drywall is plaster which at change of humidity inflates or dries, forming thin, but perfectly visible cracks in places of joints. Therefore at a repair stage carefully prepare all gipsokartonny design for the subsequent decorative registration.

It is required to you

- painting knife;
- wide brush;
- pallet;
- primer;
- hard putty;
- serpyanka.

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Instruction

1
Embroider seams between sheets of gypsum cardboard. At installation of designs on a ceiling it is not always possible to join it those places where there is a factory facet. Therefore take a usual sharp or painting knife and remove a self-made facet, that is cut off edges of a cardboard and expand seams.

2
Will mark a wide brush of a place of joints. Remove cardboard agnails and dust from plaster.

3
Prepare a primer. Pay attention that indoors with the increased humidity you need moisture resistant impregnation. Miss the mark seams with protective soil by means of a brush. Well dry. At once wash out a brush after work in water.

4
Prepare mix for filling of joints between sheets of gypsum cardboard. You can use ready hard putty on a latex basis which is on sale in plastic buckets. It does not shrink and well looks on a ceiling which will be painted. And can make weight for seal of seams of usual finishing hard putty which was got for certain for repair.

5
Fill necessary amount of plaster finishing mix in a bucket, fill in with water and stir the construction mixer which fix on a drill. Weight reminds dense sour cream on a consistence, it should not flow down from the pallet. At ready hard putty uniform structure. Any not placed lump or a slice of old mix will spoil your work. It will leave on the plastered furrow surfaces which are difficult for removing.

6
Hook rather narrow pallet on a small amount of hard putty. Pressing weight into a joint between sheets, smear it along all seam.

7
Cut off a piece of a serpyanka which corresponds to length of a proshpaklevanny seam. Paste it in a joint place on already put fresh plaster weight. Level and iron everything the pallet. The grid has to be densely pressed into hard putty. Let's time dry to completely closed-up joints.

8
Fix a fine-grained emery paper in the special machine or on usual wooden whetstone. Put on a respirator and construction glasses. Oshkurte all seams. The surface has to turn out absolutely equal.

9
Miss the mark oshkurenny seams with a primer and dry. Now your ceiling is ready to painting or pasting by wall-paper.