Paints dry when the solvent __________. What is the missing word in this sentence?
Answers
Vapourises
Explanation:
When the paints dry a solid film is left behind. This is because the solid chemical is dissolved into that volatile solvent along with the binders. That is why painting is a good way to prevent corrosion of the metal surface because it forms a layer of solid non-permeable substance which cuts the contact of moisture present in the air.
Paints are usually made up of colouring pigmet, binders that are dissolved in suitable solvent to make them usable for long time.
TOPIC: volatility, solvents, paints, adhesives
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evaporates
Explanation:
- A paint can be defined as the colored substance which is applied over the surface leaves a thin protective and decorative coating.
- A paint is applied on the surfaces of the materials to color them and prevent them from rusting.
- The paint consists of four components named as pigment, solvent, binder and additives.
- The pigment impart color to the paint, binder is used as an adhesive so that paint get stick to the surface.
- The additives are added to make the paint thick and impart some necessary properties to the paint.
- The solvent is a liquid material which is used to mix all the components of the paint.
- When the paint is applied to the surface the solvent get evaporated and leaves the dried coating over the surface.
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