redispersible latex powder RDP for tile adhesivesDecember 7th 2023
HPMC or Hydroxypropyl methyl cellulose is a non-ionic cellulose ether that functions as a thickener, water retention agent, and binder, which improves the performance and workability of various construction materials, including wall putty and tile adhesives.
Here’s how HPMC works in wall putty and tile adhesive:
Thickener: HPMC effectively thickens the mixture, preventing excessive bleeding or seeping of the material. This ensures that the putty or adhesive remains in place and adheres properly to the surface.
Water retention agent: HPMC helps retain moisture within the mixture, extending the workability time and preventing premature drying or cracking. This allows for better handling and adjustment of the material before it sets.
Binder: HPMC enhances the adhesion and bonding properties of the mixture, ensuring a strong and durable bond between the putty or adhesive and the surface. It also improves the overall cohesion of the material, preventing crumbling or flaking.
Benefits of using HPMC in wall putty and tile adhesive:
Improved workability: HPMC enhances the workability of the mixture, making it easier to apply and adjust, even in vertical applications.
Extended workability time: HPMC helps retain moisture, prolonging the workability time before the material sets, allowing for more precise application and adjustments.
Enhanced adhesion: HPMC strengthens the bond between the putty or adhesive and the surface, resulting in a more durable and long-lasting application.
Reduced cracking and slumping: HPMC’s water retention properties prevent premature drying and cracking, while its thickening effect minimizes slumping or sagging.
Improved flexibility: HPMC imparts flexibility to the mixture, allowing it to accommodate slight movements or expansions without breaking or cracking.
Overall, HPMC is a valuable additive in wall putty and tile adhesive formulations, offering significant benefits in terms of workability, adhesion, and durability.