Thin repair mortar is typically applied at a thickness of just 3 to 10 millimeters. This narrow range imposes extreme demands. It must bond firmly to the old substrate to prevent debonding, yet stay flexible enough to absorb shrinkage stress and temperature movement without cracking. One property often comes at the expense of the other.
Plaster cracking is the most common quality issue with cement-based mortars. When discussing the role of cellulose ethers, most people instinctively think of water retention. If water retention is poor, cement hydration is incomplete, and shrinkage cracks soon follow. This is true, but it is far from the whole story. The effect of cellulose ethers
Lightweight gypsum plaster is quickly replacing traditional cement plasters thanks to its high coverage and fast application. Yet, cracking and hollow spots remain two major quality killers. Surface hairline cracks, hollow areas at edges, or even large detached patches ruin both appearance and the safety of subsequent decorative layers. Often, the blame falls on poor
Lightweight gypsum plaster is known for its high application speed and excellent coverage. But quick drying and cracking remain the two most frustrating issues for formulators. The surface skins over too fast, leaving no time for finishing. Soon after hardening, hairline cracks appear, failing the quality inspection. Many people instinctively think about adjusting the retarder
Cementitious grout may seem like a secondary material, but it plays a critical role in the final look and long‑term durability of tiled surfaces. Yet cracking and efflorescence often appear one after another, becoming persistent quality headaches. Many manufacturers try to solve the problem by simply adding more cellulose ether for water retention, or just
