Q. Which constituent of paints reduces the cracking wasping and shrinkage of the paint surface?

A
Lead oxide
B
Aluminium oxide
C
Barium sulphate
D
Iron oxide
Solution:
  • The formation of bubbles below the surface of paint is known as blistering.
  • Aluminium oxide powder is used to prevent the cracking, wasping and shrinkage of the paint surface.
  • Aluminum Oxide is a harder abrasive than most, resulting in less shatter of the particles which results in lower dust levels.
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