Gypsum Special Grade Cas No 9004-65-3 HPMC

Hydroxypropylmethylcellulose (HPMC) is a polymer commonly used in various industries, including construction and gypsum-based products. When referring to a special grade of gypsum with HPMC, it typically means that HPMC is added to gypsum formulations for specific purposes, such as enhancing the performance, workability, or other properties of the gypsum product.

Regarding the provided CAS number (9004-65-3), this is the CAS number for hydroxypropylmethylcellulose (HPMC). CAS numbers are unique identifiers assigned to chemical substances.

Here’s a general overview of how HPMC might be used in gypsum-based products:

HPMC in Gypsum-Based Products:

1. Consistency and Workability:

• HPMC is often added to gypsum formulations to act as a thickening agent, contributing to the consistency and workability of the mixture. This is crucial for achieving the desired application characteristics and ease of use on construction sites.

2. Water Retention:

• One of the essential properties of HPMC in gypsum applications is its excellent water retention capability. This feature ensures that the gypsum maintains the right moisture balance, allowing for extended work time and preventing premature drying.

3. Adhesion:

• HPMC enhances the adhesion of gypsum to various surfaces, including walls and ceilings. Improved adhesion contributes to the overall strength and stability of gypsum constructions.

4. Film-Forming Properties:

• HPMC contributes to the formation of a thin film on the surface of the gypsum product. This film can enhance the adhesion, durability, and water resistance of the gypsum material.

5. Improved Durability:

• The film-forming properties of HPMC create a protective layer on the surface of the gypsum, enhancing its durability and making it more resistant to environmental factors.

6. Compatibility with Other Additives:

• HPMC is often compatible with a variety of other additives commonly used in gypsum formulations. This compatibility allows for flexibility in formulation, enabling manufacturers to tailor the gypsum product to meet specific performance requirements.

CAS Number (9004-65-3):

The CAS number 9004-65-3 corresponds to hydroxypropylmethylcellulose (HPMC). This number is used to uniquely identify this specific chemical compound.

If you have a specific “special grade” of gypsum with HPMC in mind and are looking for detailed information about that particular product, it’s recommended to consult the product specifications provided by the manufacturer or supplier. They can offer specific details about the formulation, intended use, and performance characteristics of the gypsum product containing HPMC.