Question

In sand faced finish, the second coat of plaster is applied after curing the first coat for __________ days.

(a) 7

(b) 15

(c) 21

(d) 27

The question was asked in an interview.

I'd like to ask this question from Types of Plaster Finishes topic in chapter Pointing and Plastering of Construction & Building Materials

Answer 1

Right answer is (a) 7

To explain I would say: Sand faced finish is acquired by plastering in two coats. The second coat of plaster is applied after curing the first coat for 7 days. The surface of the final coat is finished by rubbing clean sand of uniform size.