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**How does HPMC improve gypsum adhesive performance?**.
1. **What is HPMC?**.
Hydroxypropyl Methyl Cellulose (HPMC) is a white powder that is commonly used as a thickening agent, water retention aid, and rheology modifier in various construction materials.
2. **How does HPMC enhance the performance of gypsum adhesive?**.
HPMC improves the performance of gypsum adhesive in several ways. Firstly, HPMC acts as a water retention agent, which helps to prolong the workability of the adhesive mixture. This means that contractors have more time to apply the adhesive before it starts to set, resulting in a more efficient installation process.
3. **What are the benefits of using HPMC in gypsum adhesive?**.
In addition to extending the workability of the adhesive, HPMC also improves the adhesion strength of the gypsum adhesive. This means that the adhesive can form a stronger bond with the substrate, resulting in a more durable and long-lasting finish.
Furthermore, HPMC helps to prevent the adhesive from sagging or sliding when applied vertically, ensuring that the adhesive stays in place until it sets. This is especially important for overhead installations or applications on walls.
Overall, the addition of HPMC to gypsum adhesive improves workability, adhesion strength, and prevents sagging, leading to a more efficient and effective installation process.
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