Meska Joinway Construction Grade Hydroxypropyl Methylcellulose (HPMC) is a construction additive.
Due to its excellent water retention, thickening properties, work rheology regulation, film-forming properties, and adhesion, it plays a key role in various dry-mix mortars and water-based systems, significantly improving the workability, bond strength, and surface quality of the materials.
Effectively reduces water loss during construction, extends the open time, and prevents dry shrinkage and cracking.
Improve the consistency of mortar to ensure smooth construction and prevent sagging and delamination.
Enhance the adhesion between mortar and base materials, such as the base layer and brick body.
Ensure the uniform dispersion of cement, fillers and additives in the system to enhance overall stability.
Maintain strong performance in highly alkaline or saline conditions.
| Application field | RV Viscosity range | Modified Products Series | Grade | |
| EIFS/ETICS | Adhesive | 60000-90000 mPa·s | MeskacelTM A3 | A300T/A301T/A302E |
| Basecoat | 40000-60000 mPa·s | MeskacelTM P3 | P310/P3007 | |
| Plaster | Gypsum based | 30000-60000 mPa·s | MeskacelTM P2 | P206/P216/P218 |
| Cement based | 40000-70000 mPa·s | MeskacelTM P3 | P310/P3007 | |
Putty
| Exterior wall | 50000-70000 mPa·s | MeskacelTM P3 | P310/P3007 |
| Interior wall | 40000-60000 mPa·s | MeskacelTM P2/P3 | P206/P216/P218/P310/P3007 | |
Tile adhesive
| C0 | 60000-80000 mPa·s | MeskacelTM A3 | A300T/A301T/A302E |
| C1 | 50000-60000 mPa·s | |||
| C2 | 20000-50000 mPa·s | |||
| C2TES1/C2TES2 | 4000-20000 mPa·s | |||
| Self-leveling mortar/Grouting material | 200-10000 mPa·s | MeskacelTM F1 | F130(H)/F1030/F1230 | |
| Waterproof coating/slurry | 10000-40000 mPa·s | MeskacelTM W1 | - | |
| Latex paint/Stone-like coating | 50000-90000 mPa·s | MeskacelTM SL | - | |
Meska Joinway’s HPMC construction additive ensures consistent performance and reliability as a high-quality functional support for building materials.
Providing enhanced workability, improved water retention, and increased final strength, Meska Joinway’s HPMC construction additive is essential in modern high-performance dry-mix mortars. It delivers reliable functional support for both cement-based and gypsum-based systems.
Low viscosity HPMC: Offers good fluidity and works well for self-leveling mortars and grouting materials.
Medium viscosity HPMC: Balances water retention and workability; used in putty powder and gypsum plaster.
High viscosity HPMC: Provides strong water retention and anti-slip. Use it for tile adhesives and exterior wall mortars.
Meska Joinway offers viscosity grades tailored to your application needs.
HPMC slightly delays setting time, extending open and workable time. This aids complex or large projects.
Meska Joinway can adjust substitution and solubility to suit system needs and ensure balanced performance.
HPMC provides thermal gelation and water retention. Even in high temperatures, it prevents rapid water loss, ensuring smooth work and stable quality.
