ARDEX X 90 Outdoor MicroteC3, Rapid-Set, Cement-Based Flexible Thinset Mortar, 40 Lb (18 Kg) Bag, Freeze Thaw Resistant Flooring Underlayment for Stone, Ceramic Tile for Exterior Applications, White (37480)

Product Features:

• MicroteC3 Performance Technology: Advanced cements, polymers, and microfibers deliver exceptional bond strength, flexibility, and reliable lasting durability.
• Extreme Freeze-Thaw Resistance: Tested beyond 150 cycles and exceeding ANSI A118.15 requirements, it provides dependable protection in harsh climates.
• Rapid-Set Cold-Weather Use: Allows grouting and foot traffic in only 2 hours and installs over substrates as cold as 40 F (5 C) for faster completion.
• Maximum Efflorescence Control: Helps reduce salt migration and surface staining, preserving cleaner tile and stone finishes in exterior and damp areas.
• Driving-Rain Weather Protection: Resists heavy and driving rain shortly after installation, supporting reliable performance in demanding outdoor conditions.
• Interior and Exterior Versatility: Ideal for floors and walls on concrete balconies, patios, pools, facades, and high-load commercial installation areas.
• Large-Format System Compatibility: Bonds large-format tile securely over uncoupling membranes and waterproofing membranes for dependable installation.
• Thin-to-Medium Bed Capability: Supports application thicknesses up to 5/8 inch (15 mm), making it suitable for large tiles, stone, and uneven substrates.
• Extended Working Properties: Offers 30 minutes open time and 60 minutes pot life, while its creamy texture improves coverage, troweling, and tile placement.
• Superior Multi-Tile Adhesion: Delivers excellent bond strength for porcelain, ceramic, glass, marble, granite, mosaic, and natural stone floor or wall tile.

Product Description:

ARDEX X 90 Outdoor MicroteC3 Rapid-Set Flexible Thinset Mortar is a premium cement-based tile adhesive engineered for demanding interior and exterior tile and stone installations. Its advanced MicroteC3 formulation combines specialty high-performance ARDEX cements, polymers, and reinforcing microfibers to provide exceptional bond strength, flexibility, and long-term durability. Designed to withstand harsh weather conditions, it delivers outstanding freeze-thaw resistance, moisture protection, and efflorescence control for dependable professional results.

This high-performance thinset mortar is ideal for exterior and interior floors and walls, including concrete balconies, patios, swimming pools, facades, and high-load commercial areas. It can be installed over substrates with temperatures as low as 40 F (5 C), helping contractors and homeowners continue tile installation projects in cooler conditions. Its rapid-setting technology withstands heavy and driving rain shortly after application and allows grouting and foot traffic in as little as 2 hours, significantly reducing project downtime.

ARDEX X 90 Outdoor MicroteC3 supports thin-to-medium bed applications up to 5/8 inch (15 mm), making it an excellent choice for standard and large-format tile installations. It provides secure bonding over properly prepared concrete substrates, uncoupling membranes, and approved waterproofing membranes. The creamy, easy-to-spread consistency improves mortar coverage, simplifies troweling, and supports accurate tile placement, while up to 30 minutes of open time and 60 minutes of pot life allow efficient installation and adjustment.

This versatile polymer-modified mortar provides excellent adhesion for porcelain tile, ceramic tile, glass tile, mosaic tile, marble tile, granite tile, and most moisture-insensitive natural stone tile. It is suitable for floor tile and wall tile applications in residential, commercial, and outdoor environments. Its advanced efflorescence resistance helps reduce salt migration and surface staining, preserving the clean appearance of tile and stone installations exposed to moisture, changing temperatures, and severe weather.

For proper installation, prepare the substrate according to project requirements, mix the mortar to a smooth consistency, and apply it using the appropriate notched trowel for the selected tile size. Place and adjust the tile within the available open time while ensuring proper mortar coverage and contact. Packaged in a 40 lb (18 kg) bag with zero VOC content, ARDEX X 90 Outdoor MicroteC3 provides contractors, professional installers, and home improvement users with the strength, workability, weather resistance, and rapid turnaround required for reliable tile and stone installations.