ARDEX A 38 MIX Rapid Set Premixed Screed - High-Strength Cement for Tile & Stone - 40 lbs (18 kg) (20290)

Product Features:

• Fast-Drying & High-Strength Screed: ARDEX A 38™ MIX sets rapidly, achieving 6,300 psi compressive strength at 28 days for durable flooring foundations.
• Early Walkability: Walkable in just 3 hours, with tile and stone installation possible in 4 hours, making it ideal for fast-track construction projects.
• Versatile for All Screed Applications: Suitable for bonded, unbonded, and floating screeds, ARDEX A 38™ MIX adapts to residential, commercial, and industrial flooring needs. Its advanced formulation ensures long-lasting performance and structural stability in diverse installations.
• Ideal for Wet Areas & In-Floor Heating: Designed for interior and exterior use, it is perfect for swimming pools, showers, wet rooms, and moisture-prone spaces.
• Radiant Heat Compatible: ARDEX A 38™ MIX is also fully compatible with in-floor heating systems, ensuring efficient heat transfer and lasting durability.
• Premixed with Sand for Easy Installation: Factory-blended with pre-mixed sand, this screed ensures consistent quality and faster application, and reliable results.
• Just Add Water: Simply add water and mix, eliminating the need for additional aggregates, which improves efficiency and job site productivity.
• Rapid Flooring Installation: Unlike traditional screeds that take weeks to cure, ARDEX A 38™ MIX allows tile and stone installation in just 4 hours and vinyl or wood flooring in 48 hours, significantly reducing downtime and accelerating project timelines.

Product Description:

ARDEX A 38™ MIX Rapid Set, Premixed Screed is a precision-engineered, polymer-modified cement screed designed for fast, durable, and versatile flooring installations. Suitable for residential, commercial, and industrial projects, this professional-grade floor preparation solution sets, hardens, and dries rapidly to significantly reduce project timelines. It can be used to create bonded, unbonded, or floating screeds for interior and exterior applications, providing a strong, stable, and dependable foundation for tile, natural stone, vinyl plank, laminate flooring, wood flooring, and other approved floor coverings.

Premixed with sand for increased productivity and consistent results, ARDEX A 38 MIX eliminates the need to measure or add separate aggregates at the jobsite, simplifying installation and improving overall efficiency. Its rapid-hardening formulation allows the completed screed to be walked on in only 3 hours and permits tile, natural stone, or waterproofing installation after just 4 hours, even when used as an unbonded or floating screed. Unlike traditional cement screeds that may require weeks to cure, ARDEX A 38 MIX allows vinyl and wood floor coverings to be installed after only 48 hours, making it ideal for fast-track renovations, flooring installations, and time-sensitive construction projects.

Designed for indoor and outdoor use, ARDEX A 38 MIX is ideal for swimming pools, showers, wet rooms, bathrooms, kitchens, closed balconies, patios, and other moisture-prone or high-humidity environments. Its water-resistant performance provides lasting durability and creates a reliable base beneath ceramic tile, porcelain tile, marble tile, granite tile, stone tile, mosaic tile, and compatible waterproofing membrane systems. It can also be used with in-floor heating systems, radiant floor heating, electric floor heating, and hydronic underfloor heating installations, supporting efficient heat distribution without compromising structural integrity.

ARDEX A 38 MIX delivers exceptional early and long-term strength, exceeding the 28-day strength properties of ordinary cement screeds after only 1 day. At 28 days, it achieves a compressive strength of approximately 6,300 psi and a flexural strength of approximately 775 psi, creating a durable, crack-resistant, and long-lasting flooring foundation for demanding residential and commercial applications. Its VOC 0 formulation supports healthier indoor air quality while delivering the dependable performance expected from a professional floor leveling, floor preparation, and flooring underlayment product.

For proper installation, mix each 40 lb. (18 kg) bag with no more than 44 oz. (1.3 L) of clean water and follow the recommended mixing and placement procedures. One bag covers approximately 7 to 8 sq. ft. at a 3/4" thickness, or approximately 0.65 to 0.74 sq. m at 18 mm, depending on the texture and condition of the prepared surface. Store unopened bags in a cool, dry area away from direct sunlight, and protect unused material by removing excess air from the bag and sealing it tightly. The unopened product has a shelf life of approximately 1 year and is covered by the ARDEX L.P. Standard Limited Warranty. With its rapid hardening, superior durability, installation versatility, and dependable strength, ARDEX A 38 MIX is an excellent screed solution for flooring professionals, contractors, installers, and experienced DIY users alike.