High-flow self-leveling underlayment designed to level and smooth interior substrates. Provides excellent strength, fast drying, and versatile application for a wide range of flooring installations.
Brand: Ardex
Availability: Sold In Store - Ships From Store (373 available in store). (More Info)
Shipping: Standard (More Info)
Ardex V 1300 High Flow Self-Leveling Underlayment is a premium-grade solution designed to level and smooth interior substrates prior to the installation of finished flooring. Engineered for performance and efficiency, it offers excellent flow characteristics, making it easy to achieve a flat, even surface with minimal labor.
This versatile underlayment can be applied over a variety of substrates, including concrete, wood, terrazzo, and properly prepared non-porous surfaces. Its variable water ratio allows installers to adjust the mix for optimal flow and coverage, depending on project requirements.
Capable of being installed up to 2 inches thick in most applications without aggregate, Ardex V 1300 is ideal for correcting uneven floors and preparing substrates for a wide range of floor coverings. It can be applied by pouring or pumping, making it suitable for both small residential jobs and large commercial installations.
With a rapid drying profile, the surface becomes walkable within 2 to 4 hours. Moisture-insensitive tile and stone can be installed after just 6 hours, while most other floor coverings can be applied after 24 hours, helping to accelerate project timelines.
Designed for dry, interior environments, Ardex V 1300 provides a smooth, durable base that supports long-lasting flooring performance.




Mixing Ratio: 4-3/4 — 5-1/4 quarts (4.5 – 4.9 L) of clean water per 50 lb (22.7 kg) bag
Coverage:
Coverage will vary depending on surface profile, density, and porosity.
Application Thickness:
Flow Time: 10 minutes at 70 °F (21 °C)
Working Time: 10 minutes at 70 °F (21 °C)
Walkable: 2 – 4 hours
Install Flooring:
Compressive Strength (ASTM C109/mod – air cure only): 5,500 psi (38 MPa; 386 kg/cm²) @ 28 days
Flexural Strength (ASTM C348): 1,000 psi (7 MPa; 70 kg/cm²) @ 28 days
Flow Time: 10 minutes
VOC: 0 g/L
Initial/Final Set: Approx. 30 / 90 minutes (ASTM C191 equivalent)
Installation Temperature: Minimum 50 °F (10 °C) ambient and substrate
pH Tolerance: Compatible with standard concrete substrates per ASTM F3191
Moisture Testing: ASTM F2170 – RH must not exceed 99%
Packaging: 50 lb (22.7 kg) bag
Storage: Store in a cool, dry area. Do not expose bags to sun
Shelf Life: 12 months if unopened and properly stored
Warranty: Ardex Standard Limited Warranty applies. Eligible for Ardex SystemOne Warranty when used as part of a qualified system
| SKU | AR V1300 |
|---|---|
| Weight (lbs.) | 50.0 |
| Non-Returnable | No |
| Manufacturer | Ardex |
| Manufacturer Part Number | 47362 |