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One key benefit of using HPMC in gypsum is its ability to enhance the water retention capacity. Gypsum, being hygroscopic, tends to absorb moisture from the environment, which can lead to reduced workability and increased cracking. HPMC helps maintain an optimal moisture balance, allowing for smoother application and reducing the risk of shrinkage or cracking during drying HPMC helps maintain an optimal moisture balance, allowing for smoother application and reducing the risk of shrinkage or cracking during drying HPMC helps maintain an optimal moisture balance, allowing for smoother application and reducing the risk of shrinkage or cracking during drying HPMC helps maintain an optimal moisture balance, allowing for smoother application and reducing the risk of shrinkage or cracking during dryinghpmc for gypsum.

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building coating adhesive hpmc