Coating of which plastic is used on the uniforms of firemen to make them flame resistant?
- ((a))
Polythene
- ((b))
PVC
- ((c))
Melamine
- ((d))
Bakelite
Show Answer
Melamine
The correct answer is Melamine.
Concept:
Plastic is also a polymer like synthetic fibre.
There are two types of plastics: thermoplastics and thermosetting plastics.
- Thermoplastics
- Some plastic gets deformed easily on heating and can be bent easily are known as thermoplastics.
- Polythene and PVC are some examples of thermoplastics.
- Thermoplastics are used in the manufacturing of combs, toys, and various containers.
- Thermosetting plastics
- Some plastics, on the other hand, which when moulded once, can not be softened by heating are known as thermosetting plastics.
- Bakelite and melamine are two examples of thermosetting plastics.
Explanation:
Melamine
- Melamine is a thermosetting plastic.
- Melamine resists fire and can tolerate heat better than other plastics.
- Melamine is a poor conductor of heat and is fire resistant.
- The majority of synthetic fibers are poor conductors of heat and electricity.
- Melamine, on the other hand, is used as a flame-resistant coating on firefighter uniforms.
- The uniforms of firemen have a coating of melamine plastic to make them flame resistant.
- Melamine is also used for making floor tiles, kitchenware, and fabrics which resist fire.
- It is also used to prevent the spread of fire in airplanes, buses, and other vehicles.

Additional InformationBakelite
- Bakelite is a thermosetting plastic.
- Bakelite on heating becomes malleable and liquefiable.
- However, as it cools, it becomes permanently rigid and hard, as it is a thermosetting plastic.
- It is used for making electrical switches, handles of various utensils, etc.
PVC
- PVC is a thermoplastic
- PVC stands for Poly Vinyl Chloride.
- PVC has two basic forms: rigid and flexible.
- It is used in the manufacturing of rain (PVC) coats, handbags, vinyl flooring, and water pipes.
Polythene
- Polythene is a thermoplastic.
- Polyethylene is a compound made from the polymerization of ethylene.
- Polyethylene is a lightweight, versatile synthetic plastic.
- It is the most commonly used plastic in the world, with applications ranging from shopping bags and clear food wrap to automobile fuel tanks and detergent bottles.















