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Which one of the following is used as a binder in paints ?

June 1, 2025 by rawan239

Which one of the following is used as a binder in paints ?

Titanium dioxide

Novolac

Phthalocyanine

Silicones

This question was previously asked in

UPSC NDA-1 – 2019

Download PDF Attempt Online

Novolac is used as a binder in paints.

In paint formulation, a binder (also known as the vehicle) is the component that forms a film to hold the pigment particles together and adhere them to the surface being painted. Titanium dioxide and Phthalocyanine are examples of pigments, which provide color and opacity. Silicones are polymers that can be used in paints, often as additives for properties like water repellency or flexibility, or as binders in specialized coatings, but Novolac (a type of phenolic resin) is a well-established binder, particularly used in durable coatings like primers, can coatings, and industrial finishes due to its excellent chemical resistance and hardness.

Common binders in paints include acrylics, alkyds, epoxies, polyurethanes, and phenolic resins like Novolac. The choice of binder significantly impacts the paint’s properties, such as durability, adhesion, gloss, drying time, and resistance to chemicals and weather. Pigments like titanium dioxide (white) and phthalocyanines (blue/green) provide color and opacity but do not bind the paint components together.

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