Methyl hydroxyethyl cellulose

Methyl hydroxyethyl cellulose is a nonionic cellulose ether that thickens water and retains moisture in cementitious mortars. Hydrated polymer chains increase aqueous-phase viscosity, helping keep mixing water available for binder hydration. Their influence on mortar rheology also supports body, spreadability and resistance to movement after application.

The selected construction-grade powder is blended with dry mortar ingredients before water is added. In tile adhesives, water retention limits rapid drying against absorbent backgrounds and helps preserve the period available for tile placement. In renders and skim coats, it improves consistency and reduces water separation. These effects complement the adhesion supplied by the cement and any polymer binder; MHEC is not itself the complete bonding system.

Typical Applications

• Cement-based tile adhesives: Used to improve water retention, troweling consistency and tile-placement time, with appropriate formulations also gaining resistance to vertical tile slip.
• Cement renders and repair mortars: Used to maintain workable consistency and reduce premature water loss when mortar is spread onto absorbent masonry or concrete.
• Wall putties and skim coats: Used to build body and improve application uniformity in thin leveling layers, helping the wet material remain cohesive during finishing.

Specifications

Specifications describe the standard grade. Tolerance, test method and documentation package are confirmed per order.