When should drier be added to the paint?(a) 12 hours before paint is used(b) Immediately after opening it(c) 1 hour before paint is used(d) When paint is ready to useI had been asked this question in an interview.My question is from Characteristics and Ingredients of Paint in chapter Materials for Construction of Basic Civil Engineering

When should drier be added to the paint?(a) 12 hours before paint is u

1.	When should drier be added to the paint?(a) 12 hours before paint is used(b) Immediately after opening it(c) 1 hour before paint is used(d) When paint is ready to useI had been asked this question in an interview.My question is from Characteristics and Ingredients of Paint in chapter Materials for Construction of Basic Civil Engineering
Answer» The correct option is (d) When paint is ready to use For explanation I would say: Driers when ADDED to paint, will START doing their ACTION as a catalyst immediately.This will LEAD to hardening of paint, DECREASING workability.

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