Question: What is pigment? Give its two functions
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Subject : Applied Chemistry 2

Topic : Alloys

Difficulty : Moderate

applied chemistry 2 • 33 views
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modified 7 days ago by gravatar for Yashbeer Yashbeer ♦♦ 130 written 6 weeks ago by gravatar for Vibhavari Kulkarni Vibhavari Kulkarni50
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Pigment: Solid substance which is essential constituent of paint It provides capacity, strength & desired color to paint. It also gives pleasing look. It gives protection to the surface by reflecting UV rays It increases resistance towards moisture.

Example:

White - Zn & Ti oxide

Red - Iron oxide

Green - chromium oxide

Pigment should be opaque, nontoxic, chemically inert & freely mixable with oil.

Vehicle: It is called as drying oil. It is film forming constituent of paint. These are esters of fatty acids generally present in animal & vegetable oil like linseed & soya bin oil

Functions:

  • It supplies film
  • It gives toughness
  • It increases adhesion
  • It plays important role in water proofing
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written 7 days ago by gravatar for Vibhavari Kulkarni Vibhavari Kulkarni50
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