Bleach is alkaline so it doesn t pose the big risk of acidic.
Marble gravestones cleaner.
Clean a marble gravestone.
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Throughout the cleaning process you should avoid dry to dry surface contact so always keep the surface to be cleaned wet and frequently dip soak whatever cleaning implement you re using in fresh water.
Cleaning gravestones with bleach is never a good idea church said but it s especially bad when you re working on porous stone.
Pre wet the stone with clean water.
Steps to clean a marble headstone.
Next thoroughly wet the headstone gravemarker or memorial using your sponge and or by pouring water over the surface s you wish to clean.
It is important that you know what type of stone you are dealing with.
There is a large variety of all purpose marble and granite cleaner on the market but like the klean logik headstone cleaner above they usually include sealers in them that make them not ideal for our purpose.
Marble needs to be treated even more gently than granite.
How to clean a marble headstone.
Inspect the entire headstone for cracks wear and signs of damage.
Make and apply a poultice if steps 1 to 3 fail to remove the mold and mildew stains on the marble headstone make a poultice with cotton balls hydrogen peroxide and ammonia.
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Once the headstone is clean buff the marble dry with a dry and clean cloth.
Headstones can be very porous and can soak up the cleaning solution before it has a chance to work.
If there is growth remove using a wooden scraper.
Soak the stone by spraying it down with a hose or dumping a bucket of clean water over the entire surface.
Never use power washers to clean white marble gravestones as the force can destroy the patina.
Only marble that is in good condition should be cleaned.
Spraying down the headstone first will help maximize the effectiveness of the cleaning solution.
If these are present it may be best to leave it as is.
How to clean marble headstones.
Soak the stone with water to saturate any growth that may be present.
Different types will require different cleaning methods.
This is the opposite of an all to common assumption that extreme measures given the contaminants should be used on exterior marble cleaning.