Rapid Set Level Flor® is an advanced hydraulic cement based self-leveling Underlayment (SLU) that can be used both indoors as well as outdoors. It is ideal for both indoor and outdoor use, and durable in wet and dry environments. LevelFlor offers a quick and economical solution, and is an excellent choice for new floor projects as well as repair projects.

LevelFlor rapidly levels, maintains workability for 30 minutes and produces a flat, strong surface with high bond strength. Perfect for floor projects that require long flow life and working time while achieving high 24 hour strength. LevelFlor can be covered with finished flooring in 6 to 16 hours at 70˚F (21˚C) depending on the flooring type.



The Datasheet explains the performance and technical characteristics of Level Flor®.  It also shows how to use Level Flor® (i.e. surface preparation, mixing, placement and curing).

The Spanish datasheet is also available here.


The Safety Data Sheet (SDS) outlines information and procedures for handling and working with LevelFlor®.


The Specification gives a detailed statement explaining the type of jobs to specify LevelFlor® Acrylic Primer for, the scope of work, thicknesses, performance requirements and usage.

Click here for word document

Standard Practices

Q: What is LevelFlor® and what can it be used for?
A: LevelFlor is a self-leveling underlayment that can be used to fill low spots and correct unevenness prior to installing tile, carpet, or epoxy coatings.

Q: Does LevelFlor require a primer or bonding agent?
A: Yes. When LevelFlor is placed over a porous substrate trapped air in the substrate migrates to the surface causing pin holes and bubbles.  A primer seals the surface of the substrate, reducing or preventing pin holes. Primers can also reduce water loss into the substrate and increase adhesion.

Q: What type of primer should I use with LevelFlor?
A: Rapid Set® Acrylic Primer has been specially formulated for best results with LevelFlor and is ideal for most applications. Rapid Set TRU Epoxy Primer (TXP) is also compatible with LevelFlor and can be used where excellent adhesion is required.

Q: How should I mix LevelFlor® and can it be pumped?
A: LevelFlor can be mixed in buckets or barrels with a 650 rpm drill and “helix style” paddle mixer. A batch mixer and mortar pump can also be used.

Q: How thick can LevelFlor® be applied?
A: LevelFlor can be applied neat up to 1 inch thick or up to 5 inches if extended with pea gravel. LevelFlor can also be troweled to a feather-edge to match existing elevations.

Q: Is LevelFlor as fast as other Rapid Set products?
A: LevelFlor provides much more working time than typical Rapid Set products.  At 70° F, LevelFlor has a 15 minute flow life and can provide up to 30 minutes working time.

Q: Can LevelFlor be used as a finished floor?
A: LevelFlor can be used as a temporary wear surface accepting foot traffic in 3 to 4 hours and rubber wheel traffic in 24 hours but is not designed to be a permanent finished floor surface.

Q: How soon can I place my finished floor over LevelFlor?
A: In most cases, moisture insensitive flooring such as tile can be placed just 4 to 6 hours after placing LevelFlor. Moisture sensitive flooring such as epoxy or VCT can usually be placed in as little as 16 hours.

Jobs & Applications

  • Old Bacardi Headquarters in Miami, FL (underlayment).
  • Disney Polynesian Resort in Orlando, FL, Cornerstone Construction Services (underlayment leveling).
  • Hyatt Andaz Maui Luxury Resort in Wailea, HI, Swinerton Incorporated (underlayment Leveling on every floor).
Leed Product Evaluation

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