RECOMMENDED SPECIFICATION FOR LEVEL-RIGHT® CEMENTITIOUS SELF-LEVELING FLOOR UNDERLAYMENT
Summary
This is the recommended specification for Level-Right Cementitious Self-Leveling Floor Underlayment.
Section Include
- Level-Right Cementitious Self-Leveling Floor Underlayment
- Maxxon Floor Primer
- Maxxon Overspray
QUALITY ASSURANCE
Installer's Qualifications: Installation of Level-Right 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, 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 Self-Leveling Floor Underlayment as manufactured by Maxxon Corporation, Hamel,
MN.
Sand Aggregate: Sand shall be silica aggregate meeting requirements of Level-Right Sand
Specification 101.
Mix Water: Potable, free from impurities.
Subfloor Primer: Maxxon Floor Primer
Sealer: Maxxon Overspray
Mix Designs
General Requirements: Level-Right 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. General Contractor
shall clean subfloor to remove mud, oil, grease, and other contaminating factors before arrival of
the Level-Right underlayment crew.
Leak Prevention: Fill cracks and voids with a quick setting patching or caulking material where
leakage of Level-Right could occur.
Priming Subfloor: Prime concrete subfloor using the Maxxon Floor 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 at the same width.
APPLICATION OF SELF-LEVELING FLOORING
Scheduling: Application of Level-Right 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 from 3" (76 mm) to featheredge. Spread and float
Level-Right to a smooth surface. Except at authorized joints, place Level-Right as continuously
as possible until application is complete so that no Level-Right slurry is placed against
Level-Right product that has obtained its initial set.
Drying: General Contractor shall provide continuous ventilation and adequate heat. With
Level-Right there's no extensive curing time. Ceramic tile can be thin set within 2 to 4 hours.
Other floor goods can be installed once Level-Right passes a moisture test.
PREPARATION FOR INSTALLATION OF GLUE DOWN FLOOR GOODS
Sealing: Seal all areas that receive glue down floor goods with Maxxon Overspray according to
the Maxxon Corporation's specifications. Any floor areas where the surface has been damaged
shall be cleaned and sealed regardless of floor covering to be used. Where floor goods
manufacturers require special adhesive or installation systems, their requirements supersede
these recommendations.
Floor Goods Procedures: See the Maxxon Corporation's "Procedures for Attaching Finished
Floor Goods to Maxxon Underlayments" brochure 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
Slump Test: Level-Right mix shall be tested for slump as it's being pumped using a 2 inch by 4
inch (50 mm by 101 mm) cylinder resulting in a patty size of 9 1/2 inches (241 mm) plus or
minus 1 inch (25 mm) diameter.
Field Samples: At least one set of 3 molded cube samples shall be taken from each day's pour
during the Level-Right 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 wherever it will be subject to heavy wheeled or concentrated loads.