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How to remove stain on marble by BMC

removing stains from marble

How to polish dull marble by hand using MARBLE RESTORE kit

Using the MARBLE RESTORE kit you can get a perfect polishing of “marbles” with high carbonate content. For marbles with spurious carbonate content, on the other hand, you will achieve a polishing with less gloss. In such cases, in order to obtain the same degree of gloss, it will be necessary to complete the work with a specific wax .

cleaning stains off marble

Keep in mind that the “gloss” is the unit of measurement for the brilliance of a material. It varies between 0 and 100% of reflected light and can be measured with a reflectometer or a gloss meter.

How to polish marble by hand

In the MARBLE RESTORE kit you will find three velcro backed diamond plates; they are three abrasive plates made of resin mixed with fine diamond powder. Compared with carborundum abrasive papers, they have the advantage that they never clog, and remain effective until worn out. These diamond plates present grits ranging from 400 to 1500.

Grit is usually identified by a number which in turn is associated with a certain color. The coarser grit included in the kit is the number 200, with a red velcro back.  200 grit is not the coarsest available on the market for this type of abrasive resinoids (grits 60 and 100 are also produced). With a grit 200 plate you are able to eliminate surface roughness that is perceptible to the touch, and even small scratches, if you exercise enough pressure on the pad and if you carry on rubbing for long enough.

Avoid using too rough grits

However, to restore the polishing of a surface, it is not always necessary to start the job with the coarsest grit. On the contrary, it is recommendable to start working with grits as fine as possible in relation to the roughness of the surface to be polished. In principle, you should start with a grit 200 if the roughness of the surface is clearly perceptible to the touch. If, on the other hand, there is a mark that is only visible when looking closely against the light, but is imperceptible to the touch, you can consider sanding with grit 1500, which is the finest of the series and the last one to be used before chemical polishing.

Which abrasive to use?

This following photos will help you decide which grit you should start the sanding work with.

remove stains from marble

Above slight corrosion imperceptible to the touch (etch mark)

 

how to remove stain on marble

The etch mark above can be eliminated using 400/800 grit abrasive

 

how to clean stains from marble

Heavy corrosions : start using grit 200

Polishing phase

After passing the diamond abrasives on the surface, the final phase of the recovery work involves the use of a special polishing powder. This phase aims to replicate the so-called “varnish” process, but is carried out without using lead, machines, oxalic acid, or other toxic substances. In our case, the polishing is obtained simply by hand rubbing a paste made of polishing powder and water with the help of a cloth on the surface previously sanded with diamond abrasives. The secret for a perfect recovery work is a good sanding work, done with the utmost care. You will need to completely erase the signs of the previous grit at each step. The powder contained in the kit is a mixture of resins and metal oxides which, rubbed on the marble, causes the chemical polishing by filling all the micrometer sized pores with calcium molecules. It is not a glazing powder and does not cause the formation of any glass-like film on the marble surface.

Polish marble and granite: restoration procedures

how do you polish marble

How do you polish dull marble and granite

“To restore” means to bring something back to its original condition. When dealing with small scale marble restoration interventions, it is often necessary to work on a small marble part, leaving the non-damaged part unaltered. If the part to be restored is located on the surface – and is therefore? visible – the reparation work must be performed flawlessly, so that no sign of intervention can be seen. That’s why knowing how to replicate the same degree of finishing as the original surface on the area of intervention is of foremost importance. Such goal can be accomplished by faithfully replicating the process through which the original finishing was produced.

So, first of all we will have to find out how things are carried out at the factory level. We will discover that, at an industrial level, the manufacturing of stones differs depending on their nature and mineralogical composition. In light of such discovery, for our convenience, we will roughly divide the stones into two broad categories: “marble” and “granite”. That does not necessarily entail that all the stones included in the “marble” category are strictly marbles, and that those included in the “granite” category are st?rictly granites. Categories simply help us determine the surface treatment method we will need to use for the recovery.

In the industrial world, the distinction between materials – with the purpose of grinding and polishing them – is intricate and complex. However, for our purpose, the simplified marble/granite dichotomy works well enough.

Agglomerated marble is a carbonate material sensitive to acids

how to polshi marble floor

Two different categories for stone work

Rocks with high carbonate content (marble, limestone, limey sandstone, travertine, onyx), i.e. stones mainly composed of calcite and/or dolomite belong to the “marble” category. We will explain the meaning of the term “carbonate” later.

Non-carbonate rocks belong to the “granite” category: stones with low carbonate levels (such as serpentine and green marble), and stones that have a predominant silica SiO2 content (such as granite, quartzite, siliceous onyx).

Depending on the category, stones undergo a different sanding/polishing process. The process is carried out with solely mechanical means for the “granite” category, and with both mechanical and chemical means for “marbles”.

N.B. For greater accuracy we must point out that, apart from natural marbles, all composite materials with carbonate as main component (agglomerated marble, Venetian-style marble terrace floors etc.) are included in the “marble” category.

Note that artificial materials such as the so-called “quartz”, “okite” (more generically known as quartz resin), “Corian” (or similar materials known as cultured stone in English-speaking countries) are not carbonate materials. They must therefore be included in the “granite” category.

Corrosion marks reveal the carbonatic nature of the stone

how to remove stain on marble

How to clean stains from marble

how to polish dull marble

How to polish dull marble by hand

Before acting evaluate the severity of the damage

how to remove stains from marble

Before deciding how to clean and polish the marble ruined by the typical etch marks of acidic corrosion we try to assess the extent of the damage. This type of corrosion can occur with different degrees of intensity. The extent of corrosion will determine the method of our intervention. Unlike what is described in our guide to the removal of corrosion stains, for this type of problem, we proceed a little differently. First of all we try to classify the opaque stains on marble by following an intensity scale. As a general suggestion it is good first thing to try to remove them simply by use of polishing granules. In the case that the engraving imprint remains, which can be seen against the light, we will consider the need to use abrasives.

Below we list the various degrees of corrosion of marble to ascend in order of intensity with relative manual method of removal.

How to remove stain from marble (etch marks)

Water stains or slight shadows that do not disappear by using normal marble cleaners (degree 0+)

Method: rub by microfiber cloth over the opaque spots a bit of baking soda powder, wetting with a little mineral water.

Marks of very slight corrosion (degree 1)

How to remove stain on marble

Method: rub vigorously over corrosion by scottex or microfibre cloth a bit of polishing granules wet with mineral water for about 30 seconds along (video)

Etch marks ( degree 2)

how to remove stain on marble

How do you polish marble

Method: rub abrasive sponge grit 1500/2000 (# 4) until the engraving trace is canceled, then rub the polishing granules as indicated above.

Medium depth etch marks (degree 3)

how to clean stains from marble

How to clean white marble

If by pad # 4 is too hard to erase the corrosion impression, you should use the pad # 3 of 800/1000 grit. Then proceed as above.

Rough etch marks (degree 4)

how to clean stained marble

How to remove stains from marble

In this case it is recommended to start sanding by pad # 2 (400/500 grit), then rub by pad # 3, then # 4 and finish with polishing granules.
Be very careful: completely remove the scratches of the coarser grit previous, otherwise the polishing is compromised.

Deeper etch marks

In the event that even by pad # 2 it was difficult to remove the etch marks, you should consider using professional tools to perform the job.

Remove corrosions on green marble

how to clean marble countertops

How to clean marble countertop

Green marbles are subject to acid corrosion but do not respond well to the chemical polishing of polishing granules. In this case the polishing must be obtained mechanically with the finer-grained abrasives (pad # 5 and pad # 6).

Very damaged marble surfaces

how to polish dull marble

How to clean stained marble

When the corrosions invade the entire surface of a counter, cleaning and polishing marble with manual method can be too expensive. In this case it is useful to evaluate the use of professional electric tools (angular sander variable speed for marble).

Fruit stains on marble

how

“I saw strawberry and lemon stains on marble floor of Verona, how do I do it?”

stain on granite

This request was received. My answer to the removal of fruit stains on marble is in this post.

We can remove the fruit stains on marble with the application of 130 vol hydrogen peroxide for a few hours (see video test)

See here 60+ Amazing Hydrogen Peroxide Uses and Benefits

Perhaps there will be etch marks because strawberries contain moderately acidic substances.
Lemon stains are mainly due to corrosion due to citric acid contained in this citrus.

How to do it for the faint etch marks?

If we do not know how to deal with the problem, the most popular solution is to camouflage with wax based products that disguise opacity but do not solve the problem. It is the same thing to clean by putting the dust under the carpet.
We suggest solving the problem at its root.
If these stains on marble are in quantity or very large on the floor then professional work is needed for floor re-polishing or brushing.
If it is only a few stains you can opt for a DIY intervention in complete safety and calm.
Only use three small diamond pads to rub in wet grain on the stains and then rub with a bit of polishing powder.
On BMC store you find everything you need low-cost, but we’re not ready with the video tutorials that explain how we go in detail, but it’s a matter of little time and we’ll post it to you.

But be careful!

Once the stains on marble are removed and the polishing is restored, the problem may occur again and again, so it is advisable to have a preventive water-repellent treatment. This kind of treatment makes the limestone stones almost completely waterproof, but …

Still care !!

The surface corrosion problem remains unaltered.

Is there a solution to acid attack while maintaining a natural surface?

The answer is yes, as long as the acidic substances are not allowed to act too long on the floor.
The best known solution is surface waxing. This solution to many does not like, because it makes the floor slippery. If this is the case then get used to washing the floor with Marseille soap and water frequently. A Marseille soap film is similar to a wedge without the disadvantage of slippage.

Last tip, occasionally add a spoon of bicarbonate to the bucket to wipe the surface more thoroughly.

P.S.  Does it frighten the use of hydrogen peroxide, because it is very dangerous for contact with skin and eyes? Then, alternatively, you can fold over the bleach in gel to spread on the stains and let it work for a few hours. The bleach is not creeping, but it is notoriously toxic, while hydrogen peroxide is not. In addition, bleach can lighten dark marbles.

Marble test: clean the colored stains

how

Today we make a clean test on a piece of quartzite (very absorbent) heavily stained with cranberry juice.
Remove the stain seems hopeless. We also thought:
Following the indications of video-post “here’s how to remove stains of wine, fruit and coffee,” Let’s see how it went …

Great,  right?

If you liked this video, leave a tip, it will help us to give you the solutions you are looking for. Thank you!

Marble: how to remove stains of wine, fruit and coffee

how

By this video-test we offer a permanent solution to remove stains from marble that are formed due to absorption of colored organic substances such as wine, coffee and fruit juices.

The marble surfaces untreated, then without the prior application of water-oil repellent products, absorb liquids in depth and, if this one are colored, reveal obvious stains that can not be removed with normal cleaning surface.

What products to choose? Who to trust?

Looking on google you’ll come across a number of tips about home, sometimes quite risky and that will expose you to the risk of ruining your beautiful marble surfaces. On the other hand in specialist shops offer a wide range of specific products for the treatment of marble surfaces, but that does not always prove to be decisive.

To find an answer to this question we tested various solutions, using products more or less specialized, but paying special attention to the methods “home”, those based on products that are easy to find.

In this video, and in those that follow, we propose the solutions found to be more effective in our tests.

Today we see in action two different types of product: Hydrogen Peroxide 35%, and, for comparison, a specific stain remover for marble.

Enjoy!

The tests showed that the hydrogen peroxide 35% in a definitive manner removes the colored spots, the product of comparison seems, at a first application, not be decisive.

What do I need?

So if you need to remove the stains of wine, coffee or fruit (in the video was cranberry juice) here’s what you need to provide:

Hydrogen Peroxide 35% (available at any pharmacy)

Gloves and goggles

What to do?

Wash the marble surface with mild detergent and water, then let it dry.

Observing safety precautions, cover the stain with plenty of Hydrogen Peroxide 35% and wait until completely dry.

The Hydrogen Peroxide does not release toxic fumes but oxygen, media dry and leaves no residue.

The halo residue that may have visible against hydrogen peroxide, but it is not caused by the same staining agents that contain acidic substances have corroded the surface of the marble.

The Hydrogen Peroxide in fact does not affect the polish and shine of marble.

 

Caution!

  • Hydrogen peroxide 35% causes burns, it is the one normally used in the disinfection that has a concentration of 3%use gloves and gogglesnot touch the surface of the treated area without gloves before complete drying, ie prior to the complete separation of oxygen from wateravoid contact with metals (oxygenated water has a corrosive effect on them)

The Hydrogen Peroxide NOT remove:

  • oil stains with soap or cosmetics (frequent on the marble top of the bathroom)corrosion caused by acidic substances to remove etch marks (here)>>>These and other topics else on will be detailed in the next video test. Leave your suggestions below. Thanks: =)