Following are the tools used for plastering:
1. Laying Trowel
Laying trowel is the ordinary trowel and is useful for applying or spreading or laying material and for trowelling so as to attain the desired finish. The trowel has a pointed or bull-nosed end. There are two types of trowels one can use to get a good work. The first one is with a stiff blade which is used for applying the rendering. The second one has got a thin blade which has a slightly springing action and is used exclusively for finishing coat (Fig. 26.1).
Figure 26.1 Laying trowel
2. Plum Bob
This is used to check the verticality of a surface (e.g., forming screeds in the same vertical plane) (Figs. 26.2 and 26.3).
Figure 26.2 Plumb bob
Figure 26.3 Dots and screeds
3. Gauging Trowel
This is another type of ordinary trowel and is useful for applying mortar to mouldings, corners, etc. It has a pointed as bull-nosed end.
4. Float
Floats are used to spread the mortar on the surface. The wooden float is known as the skimming float and is used for final or finishing coat of plaster. A float which is provided with nails projecting by about 3 mm from the surface is known as the devil float. It is used to make zigzag lines on the plastered surface so as to form a key for the next coat (Fig. 26.4).
Figure 26.4 Types of floats
5. Floating Rule
This tool is used to check the level of the plastered surface between the successive screeds (Fig. 26.5).
Figure 26.5 Floating rule
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