RECOMMENDED SPECIFICATION FOR LEVEL-RIGHTFS-10 CEMENTITIOUS SELF-LEVELING FLOOR UNDERLAYMENT FOR TOPPING CONCRETE FLOORS
Summary
This is the recommended specification for Level-Right FS-10 Cementitious Self-Leveling Floor Underlayment
for topping concrete floors.
SECTION INCLUDES
- Level-Right FS-10 Cementitious Self-Leveling Floor Underlayment
- Manufacturer Approved Primer
QUALITY ASSURANCE
Installer's Qualifications: Installation of Level-Right FS-10 shall be by an applicator authorized by the Maxxon
Corporation using Maxxon approved mixing and pumping equipment.
DELIVERY, STORAGE AND HANDLING
General Requirements: Materials shall be delivered in their original, unopened packages and protected from
exposure to the elements. Damaged or deteriorated materials shall be removed from the premises.
SITE CONDITIONS
Environmental Requirements: Before, during and after installation of Level-Right FS-10, building interior shall
be enclosed and maintained at a temperature above 50 degrees F (10 degrees C) and below 100 degrees F (37.7
degrees C) until structure and subfloor temperature are stabilized.
Products
MATERIALS
Cementitious Self-Leveling Poured Floor Underlayment: Floor underlayment compound shall be Level-Right
FS-10 Cementitious Self-Leveling Floor Underlayment as manufactured by Maxxon Corporation, Hamel, MN.
Mix Water: Potable, free from impurities.
Concrete Primer: Manufacturer Approved Primer
Sealer: Manufacturer Approved Sealer
Mix Designs
General Requirements: Level-Right FS-10 mix proportions and methods shall be in strict accordance with
product manufacturer recommendations.
EXECUTION
PREPARATION
Condition and Cleaning of Subfloor: Subfloor shall be structurally sound. Steel troweled concrete, concrete
sealed with curing compounds, or slick or smooth substrate surfaces must be shotblast or scarified. General
Contractor shall clean subfloor to remove mud, oil, grease, and other contaminating factors before arrival of the
Level-Right FS-10 underlayment crew.
Leak Prevention: Fill cracks and voids with a quick setting patching or caulking material where leakage of
Level-Right FS-10 could occur.
Priming Subfloor: Prime concrete subfloor using the Manufacturer Approved Primer. Priming instructions vary
according to the porosity of the concrete, multiple coats may be necessary.
Expansion Joints: Allow joints to continue through the Level-Right FS-10 at the same width.
APPLICATION OF SELF-LEVELING FLOORING
Scheduling: Application of Level-Right FS-10 shall not begin until the building is enclosed, including roof,
windows, doors, and other fenestration. Install after drywall installation unless tenant finish requirements
identify partitioning after the pour.
Application: Place Level-Right FS-10 0 - 3/8” (0 - 10 mm). Spread and float Level-Right
FS-10 to a smooth surface. Except at authorized joints, place Level-Right FS-10 as continuously as possible
until application is complete so that no Level-Right FS-10 slurry is placed against Level-Right FS-10 product
that has obtained its initial set.
Drying: General Contractor shall provide continuous ventilation and adequate heat until
Level-Right FS-10 is dry. General contractor shall provide mechanical ventilation if necessary.
PREPARATION FOR INSTALLATION OF GLUE DOWN FLOOR GOODS
Floor Goods Attachment: See the brochure "Procedures for Attaching Finished Floor Goods to Maxxon
Underlayments" for guidelines for installing finished floor goods. This procedure is not a warranty and is to be
used as a guideline only.
FIELD QUALITY CONTROL
Field Samples: At least one set of 3 molded cube samples shall be taken from each day's pour during the Level-
Right FS-10 application. Cubes shall be tested as recommended by the Maxxon Corporation in accordance with
modified ASTM C 109. Test results shall be available to architect and/or contractor upon request from
applicator.
PROTECTION
Protection From Heavy Loads: During construction, place temporary wood planking over
Level-Right FS-10 wherever it will be subject to heavy wheeled or concentrated loads.