MAPEI Ultraflex LHT is a polymer-modified, nonsag and nonslump mortar for large-format and heavy tiles. Its smooth, creamy consistency and Easy Glide Technology™ allow precise application on floors, walls, and countertops, ensuring durable, professional-quality installations.
MAPEI Ultraflex LHT Professional Large & Heavy Tile Mortar Grey 50 lb
High-Performance Mortar for Large and Heavy Tiles
MAPEI Ultraflex LHT is a professional-grade, polymer-modified mortar specifically engineered for large-format and heavy tile and stone installations. Its advanced formulation provides superior adhesion to both substrate and tile, ensuring long-lasting, stable results even in demanding environments.
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Ideal for floors, walls, and countertops
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Supports heavy tiles with consistent, secure bonding
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Polymer-enriched for enhanced performance
This makes Ultraflex LHT a trusted choice for contractors and homeowners seeking durability and reliability.
Nonsag and Nonslump Formulation for Precision Installation
Ultraflex LHT features a nonsag formula for vertical surfaces and nonslump properties for horizontal applications. This ensures tiles remain in place during installation without slipping or uneven settling, even when working with thick bond coats up to 1/2" (12 mm).
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Wall applications: nonsag performance
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Floor applications: nonslump performance
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Maintains precise tile alignment throughout curing
The dual-action consistency reduces installation errors and creates a smooth, professional finish.
Suitable for a Variety of Substrates
MAPEI Ultraflex LHT is versatile and approved for use over multiple substrates, including plywood and standard concrete. Its strong adhesion and polymer-modified composition ensure proper bonding across diverse surface types, expanding its usability for residential and commercial projects.
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Works over plywood, concrete, and prepared subfloors
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Compatible with interior and exterior installations
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Suitable for floor, wall, and countertop applications
This versatility makes it a practical solution for various large-format tile projects.
Professional-Grade Support for Large-Format Tile
Designed with embedded thickness in mind, Ultraflex LHT supports large and heavy tile installations, reducing the risk of voids, uneven surfaces, or insufficient adhesion. Its professional-grade properties ensure durable, stable, and long-lasting tile installations that meet high standards of quality.
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Embedded thickness support up to 1/2" (12 mm)
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Reduces tile lippage and movement during curing
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Ensures long-term performance for heavy-tile installations
Contractors can rely on Ultraflex LHT for challenging projects where standard mortars may fall short.
Additional information
| Weight | 23 kg |
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| Dimensions | 47 × 32 × 10 cm |







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