Description
FEATURES AND BENEFITS
▪ Fluid self-leveler; easily installed from 1/4″ to 2″ (6 mm to 5 cm) neat
▪ Quickly hardens within 2 to 3 hours and is ready to accept stains, sealers or coatings within 24 hours
▪ High compressive strength
▪ Ultratop [NA] can be extended with decorative terrazzo aggregate, resulting in unlimited finished
appearances.
▪ Available in white or natural gray
▪ For diamond-polishing guidelines, see the technical bulletin “Polishing Ultratop” in the Concrete
Restoration Systems section of MAPEI’s Website.
WHERE TO USE
▪ Interior use only
▪ Suitable for light industrial floors, commercial, retail and residential applications
▪ The installation of Ultratop [NA] products is limited to professional installers only. Please contact MAPEI’s
Technical Services Department for recommendations
SUITABLE SUBSTRATES▪ Concrete must be structurally sound, dry, stable and cured for at least 28 days.
Consult MAPEI’s Technical Services Department for installation recommendations regarding substrates and
conditions not listed.
SURFACE PREPARATION
▪ Concrete surfaces must be clean and free of loose particles, efflorescence, paints, tars, grease, asphaltic
materials, bond breakers, curing compounds, wax and any foreign substances.
▪ Mechanically profile and prepare concrete surfaces by engineer-approved methods in accordance with the
most current ICRI 310.2R Guidelines.
▪ Always use caulking or foam tape to round off any sharp corners that protrude into the room receiving the
topping, as well as column bases, supports and equipment pedestals, etc., including the use of foam tape
around the perimeter of the pour.
▪ Always prime the prepared surface with MAPEI’s Primer SN [NA] and squeegee it into place, scrub it into
the substrate, and then back-roll to ensure a uniform application at a thickness of 15 to 20 wet mils. While
Primer SN [NA] is still wet, follow immediately with a full sand broadcast (to rejection) with #16 to #30 mesh
sand. After Primer SN [NA] has cured for at least 16 hours, vacuum up the excess sand. Alternative primers
such as MAPEI’s fast-setting Primer SN Fast can be used in accordance with their Technical Data Sheets
(TDSs). Consult MAPEI’s CRS Technical Services Department for recommendations.
▪ All existing construction/control/expansion joints, or saw-cuts, and all moving cracks must be properly
repaired up through the topping by installing a flexible sealing compound for control/expansion joints or
epoxy adhesive for monolithic sealing of cracks in slabs or other materials specifically designed for use in
joints or cracks. Ultratop [NA] must not be installed over any joints or any cracks if they are not properly
repaired or prepared; otherwise, the control joints or cracks will cause Ultratop [NA] to show cracks or
pattern reflective after Ultratop [NA] has been installed. MAPEI cannot be responsible for problems that
arise from existing cracks, new cracks or joints that may develop after Ultratop [NA] has been installed.
