---
title: "Types of paints"
subject: "Engineering Chemistry"
chapter: 8
key: "semester_2/engineering_chemistry:paint-types"
source: https://www.bctengineer.com/q/semester_2/engineering_chemistry/paint-types
site: BCT Engineering
---

# Types of paints

Engineering Chemistry · Chapter 8: Lubricants and Paints

- Asked in: 2069 Bhadra, 2 marks
- Video: [Chemistry of Paints](https://www.youtube.com/watch?v=IG2u8gAme68) — Chemistry Club
- Answer checked by Claude Opus 5.5 (high effort) on 2026-10-14
- Page: https://www.bctengineer.com/q/semester_2/engineering_chemistry/paint-types
- Whole chapter: https://www.bctengineer.com/md/semester_2/engineering_chemistry/chapter-8

## Question

Show your acquaintance with types of paints.

## Short answer

Oil paints use drying oil for wood. Enamel paints use varnish for a hard glossy finish. Emulsion paints are water‑based for interiors. Anticorrosive paints protect steel; cement paints for rough walls; bituminous paints for underground pipes; aluminium and fire‑retardant paints for special uses.

## Answer

Types of paints:
1. **Oil paint:** pigment in a drying oil (linseed oil); used for wood and walls.
2. **Enamel paint:** pigment in varnish; hard, glossy, used on metals and machines.
3. **Emulsion paint:** water-based polymer emulsion; interior walls.
4. **Cement paint:** cement + pigment; exterior rough walls.
5. **Anticorrosive paint:** red lead or zinc chromate for steel structures.
6. **Bituminous paint:** bitumen in solvent; underground pipes and metal in wet places.
7. **Aluminium and fire-retardant paints:** for tanks, heat reflection and fire protection.
Distemper is a water-thinned paint of chalk and glue for ceilings.

## Check yourself

The answer's key points as multiple-choice questions, with the correct option and why.

1. Which paint has pigment in varnish and is used on metals and machines?
   A. Oil paint
   B. Enamel paint
   C. Cement paint
   D. Emulsion paint
   Answer: B. Enamel is pigment dispersed in varnish; it is hard and glossy. (Key point: Enamel)

2. What is emulsion paint based on?
   A. Linseed oil
   B. Bitumen
   C. Cement
   D. A water-based polymer emulsion
   Answer: D. Emulsion paint is a water emulsion of polymer used on interior walls. (Key point: Emulsion)

3. Where is cement paint used?
   A. Underground pipes
   B. On rough exterior walls
   C. Interior ceilings
   D. Metal furniture
   Answer: B. Cement paint is cement plus pigment for rough outside walls. (Key point: Cement paint)