Science, asked by DavidDicostta1, 1 year ago

why do panter use sand paper in whitewashing the wall and polishing door

Answers

Answered by Oscar04
0
because it helps to smooth it
Answered by mehreennaikoo123
0

Sandpapers provide very high force of friction. Painters rub the sandpaper on the wall and on the door for increasing the roughness of the surface of the wall and the door. When roughness increases, force of friction increases and thus adhesive force also increases. Adhesive force is the force of attraction acting between the molecules of different substances. Paint sticks to the surface of the wall and the door on account of adhesive force.

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