All of these stones are much softer than granite and require different cleaning methods.
Cleaning marble tombstone with pressure washer.
The first step in cleaning a headstone correctly is to select the right cleaner.
Do not use normal household cleaners soaps and detergents ivory formula 409 bleach tsp laundry detergents dish detergents etc to clean headstones.
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Taking this into consideration it is best to use a pressure washer only on granite tombstones that have no contrasting paint in the engraved areas.
Clean a marble gravestone.
Clean a granite headstone.
You should look for a cleaner that contains non ionic detergents as these will be the most gentle.
Never use a pressure washer on a tombstone as it will erode the stone and accelerate the wear and tear on the stone while removing the crisp edges of engravings.
Most of these websites are for monument companies and seem to be making.
With a careful gentle hand and a bit of elbow grease you can refresh a headstone or grave marker making it easier to read and restoring some of the stone s beautiful finish as first created by the crafting stonemason.
The pressure washer can and will strip it out leaving little or no contrast for the viewer to read the lettering on the tombstone.
And others take on tombstone cleaning for things like eagle scout projects.
Once you have checked out the stone you are ready to start actually cleaning.
A search of the internet will find hundreds of websites all with a similar wrong message in most cases moss or most stains can be removed by pressure washing and professional cleaning.
You want to keep the marble wet throughout the cleaning process by continually wiping the marble headstone with a cloth and clean water.
Pressure washing of gravestones is a somewhat new and serious threat to cemeteries.
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Never use power washers to clean white marble gravestones as the force can destroy the patina.
Cleaning tombstones and monuments has become quite popular among many individuals and groups.
Headstones can be constructed from a variety of materials including limestone marble and sandstone.
Now knowing that using the pressurized nozzle of a hose could even damage a headstone just imagine the damage a pressure washer would do at 2 000 or even 3 100 psi.
Rinse and wipe the marble headstone once all of the debris has been removed by the soapy water mixture rinse the entire surface of the marble headstone thoroughly with clean water and a clean cloth.
Others are individual descendants doing much the same things.
Commercial pressure washers generally operate between 750 and 30 000 psi which can damage the marble s surface however pressure washing at 500 psi or below and at a distance of 12 inches from the stone face or more is acceptable.