Why is Cellulose ether Important in Wall Putty?

Cellulose ether is an important additive in the formulation of wall putty because it prevents cracking and shrinkage. When lime or cement is added, small cracks form on the surface, which can lead to larger problems over time. However, adding cellulose ether to the wall putty reduces cracking during the drying process. Cellulose ether also helps to prevent shrinkage, which is an important factor.

When putty dries, it shrinks, but cellulose ether reduces shrinkage and keeps the drywall flat. Wall putty is typically applied to drywall, and it must not shrink or crack as it dries. Otherwise, the putty will develop small cracks and be difficult to paint or patch.