Surface must be structurally sound, clean, dry and free
from dirt, oil sealers or any contaminants that would
prevent a good bond. CeraZorb must acclimatize in
their sealed packaging for 48 hours at a temperature
of 65 degrees.
Inspect concrete sub floor for any open cracks and
fill with a high grade patch. Remove any excess
concrete lumps or residue that may interfere with the
installation of CeraZorb. The concrete slab should be
fully cured, dry, smooth, flat, and accept water
penetration. Concrete must be free of efflorescence
and not subject to hydrostatic pressure. A good quality
concrete waterproof sealer may be required if moisture
in the slab is above 10%.
Gypsum substrates must have a PSI
greater than 2000
and must be first primed or sealed per manufacturer’s
The sub floor should be
permanently dry, smooth,
flat, and clean free from dirt, grease, wax, paint,
oil or anything that would hinder a good bond.
Plywood sub flooring should be of a good grade.
Variations in floor level over 1/8” within a 3 foot
span should be leveled before installing underlayment.
Any nails or other protrusions should be pounded flat
or removed. Sub floor should have L360 for deflection.
CeraZorb is bonded to the sub floor with Impacta T-700
bond coat adhesive. Use a 1/8" x 1/8" x 1/16" V-Notched
trowel. Apply only enough adhesive as can be covered by
a 4' x 4' sheet. Clean up any extra before the adhesive
skins over. Impacta T-700 and the sub floor must be at
Set the CeraZorb into the adhesive while it is still wet.
Do not allow adhesive to skin over. Lift a corner periodically
to see if the adhesive is transferring 100%. If adhesive is not
transferring, apply additional adhesive. Flat trowel the
CeraZorb to smooth out air pockets. Continue to install
CeraZorb sheets making sure to install with edges butted tight
to each other, do not overlap seams. After first row is
completed, roll the mat with a 35 lb roller. Install second row
with staggered seams to the first row and repeat steps above.
It is recommended to wait 8-12 hours before installing tile on
top of CeraZorb.
Installation of Tile, Stone or Marble
Before installation of the
flooring, install CeraZorb perimeter isolation strips with PSA
backer or cut 1" wide by 4' lengths off the sheet. Fasten the
perimeter strips to the wall of the entire sub floor use T-700
or mastic if cutting strips. Make sure to follow applicable
ANSI A.108/A.118/A.136 for proper installation of ceramic tile.
When applying tiles to CeraZorb always use a polymer-modified
mortar meeting ANSI A118.4 or A118.11 standard. It is
recommended to key-in/burn-in a thin layer of thin set into the
surface of CeraZorb as a first step to tiling.
After finished floor is installed and grouted, trim the excess
perimeter isolation strip flush with the floor. Prior to
installation of cove or base molding seal isolation foam with
either Sound Seal acoustic caulk or any waterproof acrylic
caulk. Adhere the base or cove to the wall. The base board
must not touch the floor to avoid sound/vibration to flank
through the walls.