DESCRIPTION A. Terrazzo flooring
is composed of marble chips set into Portland Cement.
Additional marble chips are sprinkled over the surface
prior to the final set. After setting, the floor
is ground to a smooth hard surface with heavy grinding
machinery. Generally 75% of the floor will be marble
chips with the remainder being concrete.
PREPARATION A. Newly installed Portland Cement Terrazzo
should be properly cleaned prior to seal ing. A
neutral or very mild acid cleaner should be used
to remove all surface dirt and foreign matter from
the floor. If a gray cast appears on the floor,
this is a result of salt deposits which should be
removed with a mild acid cleaner. Rinse well with
clean water and allow to dry. B Old terrazzo floors
should be thoroughly stripped with a stripper/degreaser
to re move all old soap film, wax, or salt deposits
and other residual matter. Rinse well with clean
water and allow to dry.
SEALING A. Because of the concrete portion of the
floor, all new terrazzo should be sealed to protect
the grouting and to avoid penetration of stains
into the floor. New floors may be sealed with a
water-based sealer undercoater formulated for hard
surfaces, or for a more permanent seal the new stain
resistant Aquathane HP sealer may be used may be
used. Old terrazzo may require two coats of sealer.
FINISHING A. Terrazzo floors may be finished with
a non-slip, non-buffable floor finish to avoid excessive
slip conditions. Urethane fortified or finishes
designed for hard surfaces would be the coatings
of choice. Degree of gloss desired would also have
a bearing on finish selection. Apply two coats using
a standard wet mop. Allow proper dry time between
coats and prior to traffic on floor.
The
Janitech Companies
106 High Street
Cumberland, RI 02864
(Tel) 401-724-4300, (Fax) 401-724-4900
