HPMC (hydroxypropyl methylcellulose) is widely used in construction materials and can significantly improve material performance and construction efficiency.

Cement mortar and tile adhesive: As a water retaining agent and thickener, HPMC can improve the operability and extend the operability time of mortar, increase adhesion, reduce sagging, and improve the opening time and bonding strength of tile adhesive.

Gypsum-based products: In gypsum plasters and joint compounds, HPMC improves consistency, adhesion and crack resistance, enhancing performance and ease of application.

Coatings and Paints: As a thickener and stabilizer, HPMC can improve the application performance of coatings, reduce sagging, and enhance the overall appearance and durability of coatings.

Self-Leveling Compound: HPMC helps achieve a smooth, uniform surface that reduces shrinkage and cracking and is especially beneficial for applications that require a flat and level substrate.

Waterproof material: HPMC can enhance the waterproof performance of certain formulas, reduce water permeability and prevent moisture intrusion, and is suitable for humid environments or areas exposed to water.

Thermal Insulation: HPMC helps form lightweight and thermally efficient building products, improving thermal comfort and energy efficiency.

Fire retardant coatings and systems: HPMC can enhance the char layer formation of the fire barrier, improving fire resistance.

Environmentally Friendly: HPMC is a biodegradable, environmentally friendly additive that is non-toxic and safe for construction workers and the environment, in line with sustainable building practices.

Improved adhesion and substrate wettability: The surface activity of HPMC improves coating spreading on the substrate, increasing adhesion and reducing the risk of coating delamination, peeling and long-term failure.

Efflorescence Control: HPMC helps control efflorescence by providing proper water retention and reducing the permeability of cement-based mixes, improving the appearance of construction projects and reducing maintenance.

Air entrainment: HPMC can be used as an air-entraining agent in cement-based materials to introduce tiny bubbles to enhance freeze-thaw resistance and workability.

Improved admixture compatibility: HPMC is compatible with a variety of other construction chemical admixtures, such as superplasticizers and air-entraining admixtures, ensuring that HPMC can be seamlessly integrated into existing formulations.

These uses demonstrate the versatility and importance of HPMC in construction materials, which can improve the performance, durability and workability of materials, making them more efficient and effective in a variety of construction applications.