ARDEX TL 1000 Portland Cement-Based Self-Leveling Underlayment for Large and Super-format Tile Installations on Concrete Subfloors, 50 lb (22.7 kg) Bag (12509)

Product Features:

• Extended Working Time: Self-levelling cement underlayment with extended working time for easy placement and smooth finishing, helping support efficient floor preparation.
• Fast Interior Floor Leveling: Designed for fast interior floor leveling prior to installing tile, stone, or large-format flooring, helping reduce project downtime.
• Versatile Subfloor Compatibility: Ideal for concrete subfloors, cementitious terrazzo, and existing ceramic, quarry, or porcelain tile in interior spaces.
• Curing Compound Compatibility: Compatible with select concrete curing compounds when properly prepared, supporting versatile concrete floor preparation.
• Membrane Prefill Solution: Excellent prefill solution over uncoupling membranes and floor heat membranes, helping create a smooth base for tile installation.
• Large-Format Tile Performance: Specifically engineered for large-format and super-format tile installations requiring a smooth, flat, dependable surface.
• 6-Hour Tile Installation: Tile and stone can be installed in as little as 6 hours after application, helping support efficient same-day installation schedules.
• Walkable in 4 to 5 Hours: Walkable in approximately 4 to 5 hours under normal conditions, helping minimize downtime on interior flooring projects.
• Flexible Installation Thickness: Installs from feather edge up to 1 1/4 in (3 cm) in a single pour, helping correct low areas and meet existing elevations.
• Water-Only Mixing: Mixes with water only, no additives or latex required, allowing simple and efficient preparation using approximately 5 quarts per bag.
• High-Coverage Formula: High coverage rate of approximately 25 sq ft at 1/4 in thickness per bag, helping improve material planning and jobsite efficiency.
• Self-Smoothing Leveling Formula: Self-smoothing formula seeks its own level for a flat, durable floor surface with minimal placement and finishing labor.
• Multi-Use Interior Applications: Suitable for residential, commercial, and light industrial interior applications requiring smooth, durable floor preparation.
• On, Above, or Below Grade: Can be installed on, above, or below grade in interior environments for versatile new construction and renovation projects.

Product Description:

ARDEX TL 1000™ Self-Leveling Underlayment is a high-performance, polymer-modified, cement-based leveling compound engineered specifically for fast and reliable interior floor preparation before installing tile, natural stone, or other finished flooring. Formulated with a blend of Portland cement, other hydraulic cements, and polymers, this professional-grade flooring underlayment creates a durable, smooth, and flat surface with minimal labor. Its pourable or pumpable consistency seeks its own level, helping eliminate uneven areas and reducing the need for traditional backer boards that must be cut, fitted, glued, and mechanically fastened.

Designed for use on, above, or below grade, ARDEX TL 1000 can be installed over properly prepared interior concrete subfloors, cementitious terrazzo, and existing ceramic, quarry, or porcelain tile. It may also be suitable over concrete treated with certain compatible curing compounds. The smooth, level surface is ideal for ceramic tile, porcelain tile, marble tile, granite tile, mosaic tile, natural stone, large-format tile, and super-format tile installations. It is an excellent floor preparation solution for residential renovations, commercial flooring projects, bathrooms, kitchens, living areas, dining rooms, bedrooms, foyers, hallways, and other interior spaces requiring dependable flatness and long-term durability.

ARDEX TL 1000 is particularly valuable for demanding tile installation projects where substrate flatness and surface quality are critical. It can help prepare floors for large and super-format tile, heated flooring systems, radiant floor heating applications, tile membrane underlayment, and compatible uncoupling membrane systems. The material can be installed at an average minimum thickness of 1/4 inch and up to 1 1/4 inches thick in a single application. It can also be tapered to meet existing elevations, making it suitable for correcting low areas, transitioning between floor heights, and smoothing irregular concrete or existing tile surfaces.

The easy-to-use formula mixes with water only, requiring no additives. Use approximately 5 quarts or 4.75 litres of clean water for each 50 lb. or 22.7 kg bag. Once mixed, the material provides approximately 10 minutes of flow time for efficient placement and smoothing. One bag covers approximately 25 square feet at a 1/4-inch thickness, although actual coverage will vary based on the texture, porosity, and condition of the surface being leveled. The floor can typically be walked on after approximately 4 to 5 hours, and non-moisture-sensitive tile or stone can be installed in as little as 6 hours. Most other compatible floor coverings may be installed after approximately 24 hours, helping support efficient same-day and next-day flooring schedules.

Engineered for lasting performance, ARDEX TL 1000 develops a compressive strength of approximately 4,000 psi and a flexural strength of approximately 1,000 psi after 28 days. Its VOC content is 0, making it a practical choice for indoor residential and commercial floor preparation. Each 50 lb. bag should be stored unopened in a cool, dry area away from direct sunlight and has a shelf life of approximately one year when properly stored. For contractors, flooring installers, tile professionals, and experienced DIY users, ARDEX TL 1000 provides a fast, dependable, and labor-saving solution for creating a smooth, flat, tile-ready floor surface backed by the ARDEX L.P. Standard Limited Warranty.