Paint thinners — match common coatings with their usual thinners and identify the correct combined statement. Choose the best option.

Civil Engineering Building Materials Difficulty: Easy
Choose an option
  • A
    For lacquer paints, the thinner is alcohol
  • B
    For cellulose paints, the thinner is ethyl acetate
  • C
    For oil paints, the thinner is naphtha
  • D
    For distemper, the thinner is water
  • E
    All of the above

Answer

Correct Answer: All of the above

Explanation

Introduction / Context:Every coating system has compatible thinners that adjust viscosity and drying characteristics. This question checks practical knowledge of typical thinners used with common paint categories in building works.

Given Data / Assumptions:

  • Lacquer paints (nitrocellulose or similar), cellulose paints, oil-based paints, and distemper are considered.
  • We assume standard, widely used thinner pairings.
  • Only one option correctly aggregates all matches.

Concept / Approach:Correct thinning ensures proper atomization, leveling, and film formation. The usual pairings are: alcohols for many lacquers, esters/ketones like ethyl acetate for cellulose paints, petroleum distillates (e.g., mineral spirits/naphtha) for oil paints, and plain water for distemper (a water-based paint).

Step-by-Step Solution:

1) Lacquer paints: Commonly thinned with alcohols and compatible solvents.2) Cellulose paints: Ethyl acetate and related solvents are standard choices.3) Oil paints: Mineral spirits/naphtha serve as conventional thinners.4) Distemper: A water-borne paint; water is the thinner.

Verification / Alternative check:Manufacturer data sheets and trade practice guides confirm these pairings as standard recommendations for application and cleanup.

Why Other Options Are Wrong:Each single statement captures only one pairing; the comprehensive, correct grouping is the “All of the above” choice.

Common Pitfalls:Using an incompatible thinner can cause poor film formation, slow drying, or surface defects like orange peel and pinholing.

Final Answer:All of the above

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