Maintenance |
Methods of Polishing and Restoration |
| Method |
Description |
| Coatings (e.g., wax and urethane) |
Are used as quick fixes and are more of a problem than a solution.
These coatings prevent the stone from "breathing"
and may yellow light colored stones, and the chemicals used
for stripping the coatings off can damage the floor. These finishes
are no answer to imperfections in a stone floor and in the long
run may only exacerbate problems. The best approach is to not
use coatings at all. |
| Polishing powders |
Polishing powder is applied with a buffing machine to bring
out a mirror like shine. This is a good regular maintenance
choice. Periodic honing and polishing by a floor maintenance
contractor will maintain the luster and more importantly, significantly
inhibit re-soiling and deterioration. Mechanical honing with
fine screens creates a smooth surface, followed by buffing to
a polished finish with slightly abrasive putty and synthetic
felt or wool pads. This may be done monthly or quarterly, depending
on the wear the floor receives and the quality of finish the
congregation desires. Daily in-house maintenance is crucial
to the durability of the polished finish and saves money by
reducing deterioration and the need for more extensive professional
treatment. |
| Sanding with diamond abrasives |
Is the most durable polishing method and is also the only
choice for restoration. This method involves grinding the floor
down with commercial grade diamond abrasive pads. Successively
finer pads are used to bringing out a mirror like shine. If
a marble floor is scratched, deeply soiled, or has a build-up
of yellowed wax or discolored sealers, the luster and natural
color can be restored by wet sanding and chemical stripping.
Sanding is followed by honing and polishing. Repeated heavy
sanding can noticeably wear down a floor, producing visible
depressions; thus it is best to avoid the need (and the expense)
of this procedure by maintaining the polished finish. |
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Methods of Maintenance |
| The loss of polish on stone floors is mostly caused by dust, dirt,
sand and other fine particles scratching the surface from foot traffic.
Removing the dust and dirt from the floor will help keep this scratching
to a minimum. The less scratching that occurs, the less frequently
polishing or restoration will be needed. A good quality cotton mop
works best. Do not over wet the floor, light damp mopping is all that
is needed. If grout lines start to darken scrub well and wet vacuum
out debris.
Make certain that the cleaner you use has a neutral pH of seven. High
alkaline or mild acidic cleaners can dull or damage the finish, particularly
"no streak" cleaners. Although they may be neutral pH seven,
some contain "Chelates" which dissolve or destroy calcium
in the water and eliminate hard water deposits. Since marble and some
stone contain a large amount of calcium, these cleaners attack the
finish on stone floors.
Test: Drop a small
amount of the concentrated cleaner in an inconspicuous location and
let it sit for 5-10 minutes then wipe up. If the spot is dull then
the cleaner is not neutral and will etch your floor. |
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