Hydroxypropyl Methylcellulose (HPMC) is added to wall putty for several key reasons:
Improved Workability: HPMC enhances the consistency and smoothness of the wall putty, making it easier to apply and spread on surfaces.
Water Retention: It helps retain moisture in the putty mix, preventing it from drying out too quickly. This ensures proper adhesion and reduces the risk of cracking during application.
Increased Adhesion: HPMC improves the bonding between the wall putty and the surface, leading to better adhesion to walls and substrates.
Thickening Agent: It acts as a thickener, helping control the viscosity of the putty and preventing it from becoming too runny during application.
Enhanced Durability: It can improve the long-term durability of the putty, reducing issues like shrinkage or cracking once the putty has dried.
In essence, HPMC is added to enhance the overall performance, application ease, and longevity of the wall putty.
