Terrazzo is
a man-made flooring consisting of natural stone pieces set in a cement or epoxy
medium and it is either poured on site or precast as tiles. Marble pieces in
the mix allow polishing to a high shine, and often the floors will have
decorative patterns and features.
Terrazzo’s durability
makes it a very popular flooring choice in high traffic environments such as
supermarkets, airports and train stations – and restoring Terrazzo floors can
produce stunning results.
The process
involves diamond grinding, honing, polishing and, in some cases, crystallisation.
First, the
floor is cut to remove deep scratches and any unevenness. Honing with finer grade diamond
abrasives prepares the floor, while polishing with very fine grade diamonds
gives the Terrazzo a high gloss look. Crystallisation will also give Terrazzo (and
other floors containing calcium) a high, glass-like shine by using a polishing
powder to chemically alter the surface of the stone.
Sealing
Terrazzo floors can improve cleaning results dramatically.
For best results,
the floor needs grinding, honing and polishing to the desired level before coats
of stone floor sealer are applied to protect the floor from stains and light
scratching.
Natural
Stone impregnators can counter the porosity of Terrazzo, marble, Travertine, granite,
slate, sandstone, limestone and other natural stone. By penetrating the surface
of the stone, impregnators close small pores and reduce larger pores,
preventing the absorption of liquid molecules. This prevents staining and dirt
formation but allows the stone to breathe.
To test the
porosity of your floor, pour a tablespoon of water onto the floor and leave for
5-10 minutes. If the water has been absorbed into the stone your floor is
porous and susceptible to staining.
Stone restoration is a very
skilled process with no short-cuts and only well-trained and experienced
operators should carry out stone restoration. Although all stone floors will
become dull and worn when exposed to traffic, a planned maintenance programme will ensure your beautiful Terrazzo floor fulfils its potential.