Hydroxypropyl methylcellulose (HPMC) is a non-ionic cellulose ether added to cement-based and gypsum-based building materials.
Main Functions
- Retains water so the wet mix does not dry out too quickly.
- Thickens the mix and makes it easier to spread, trowel and finish.
- Helps mortar resist sagging and helps wall tiles resist slipping during installation.
- Helps extend the time available to place tiles after the adhesive has been spread.
Uses
Tile adhesives, plastering mortars, masonry mortars, insulation mortars, repair mortars, wall putties and gypsum-based products.