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The Function of a __________ in varnish is to accelerate the process of drying.

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The Function of a __________ in varnish is to accelerate the process of drying.

(a) Solvent

(b) Resin

(c) Coolant

(d) Drier

I have been asked this question in an interview.

Question is taken from Characteristics of Varnishing in chapter Painting, Varnishing, Distempering, etc of Construction & Building Materials

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Right choice is (d) Drier

To elaborate: The function of a dryer in Varnish is to accelerate the process of drying. The common dryers used in vanishes are Litharge, white copper and lead acetate. Depending upon the nature of resin, the type of solvent is decided.

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