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__________________ are specially adapted for exposed works which require frequent cleaning.

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__________________ are specially adapted for exposed works which require frequent cleaning.

(a) Oil Varnish

(b) Spirit Varnish

(c) Water Varnish

(d) Turpentine Varnish

I had been asked this question in a job interview.

I would like to ask this question from Characteristics of Varnishing topic in section Painting, Varnishing, Distempering, etc of Construction & Building Materials

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The correct option is (a) Oil Varnish

To explain: The linseed oil is used as a solvent in oil vanishes. The hard resins such as Amber and Copal are dissolved in linseed oil and if the Varnish is not workable, a small quantity of turpentine is added. The oil vanishes dry slowly, but they form hard and durable surface for cleaning.

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