Can Coarse Putty Be Used on New Construction Walls? Yes, coarse putty can be used on new construction walls, particularly when the plastered surface is rough or uneven. It’s meant to deal with more noticeable surface imperfections, including fine pores, pinholes, and uneven areas, before the final finishing stage. New walls aren’t necessarily perfect walls. Concrete, cement plaster and other common construction surfaces can have small variations even when the plastering work has been done reasonably well. A coarse putty layer can help bring those areas closer to an even surface before a finer putty or paint finish is applied. Visit Us:- https://birlanu.com/coarse-putty