Question

In: Chemistry

What is the difference between a paint and a coating? 2. What is a binder?   What...

What is the difference between a paint and a coating?

2. What is a binder?   What are the categories of coatings? What is a varnish?

What is a primer? What is a clearcoat?

3. How should paint be collected if it is fragile or fragmentargy?

4. What does a microtome do?

5. What is a problem with solubility testing of paints?

6. What types of instrumentation are routinely used to analyze paints?

7. What is a color system? Name two.

8. What is a batch lot?

9. How does the age of a vehicle affect the significance of a paint match? Why?

10.   How would you go about finding out how many 2009 cares are registered to drivers?

Solutions

Expert Solution

1.) Coating is a covering that is applied to the surface of an object [substrate]. Coatings are applied to improve surface properties of the substrate, such as adhesion, appearance, wet-ability, corrosion resistance, wear resistance, and scratch resistance. Coating may be applied as liquids, gases or solids.
However, painting is the practice of applying paint, colour, pigment, or other medium to a surface. Paintings may have surfaces as walls, paper, canvas, wood, glass, lacquer, clay or concrete for support.

2.) Binder: Binder is a substance which is used to make other substances, substrates or materials mix or stick together.

Different types of coating are:

  1. Protective Coating
  2. Industrial coating
  3. Architectural Coating (polymer coating)
  4. Special purpose Coating (Automotive Refinish Coatings, Industrial Maintenance Coatings)

Varnish: Varnish is a clear transparent hard protective finish or film. It can also be defined as resin dissolved in a liquid for applying on wood, metal, or other materials to form a hard, clear, shiny surface when dry.

Primer or undercoat: A primer/undercoat is a preparatory coating put on materials before painting. Primer/undercoat ensures better adhesion of paint to the surface. It increases paint durability.


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