boric acid
It is best to wash the stone with boric acid, which is the weakest acid and has a great effect on cleaning the stone without harming the essence of the stone.
The following are common stone cleaning methods:
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1, oxalic acid cleaning.
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Soak the stone in a 3%-5% oxalic acid solution, and it can be seen that most of the attachments have fallen off by themselves for 3-4 hours. Then soak in water for about 1 hour, and finally rinse with clean water with a brush or steel ball to continue cleaning.
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2, acetone cleaning.
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Acetone is a chemical raw material, decontamination is very strong, especially suitable for those stones exposed outside for many years (such as Gobi stone). Rub with cotton, wipe with a dry cloth, and rinse without water.
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3, leather cleaning agent cleaning.
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Commercially available for leather clothes, leather sofas and other leather cleaning agent cleaning, simple, just wipe can be. The disadvantage is that the cost is a little high.
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4, sand blasting cleaning.
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For the so-called \"leakage\
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5, ordinary water scrub.
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According to the surface of the stone, choose different hardness of the bristles to dip in water to clean the stone surface.
First, washing powder soaked in hot water, rub with steel wire, where there are gaps, use shoe brushes, and then small gaps can be folded into sand paper knife friction, shape can be changed, stick, corner, etc.
Second, generally only need to soak in water for a few hours, and then use a brown brush or loofah tendon to scrub off its moss and scale. Such as infiltration of seaweed, shellfish and other attachments, can use 1:5 diluted glacial acetic acid soaking, half a day to a day later, that is, the line falls off, and then repeatedly washed with water rinse until satisfied.
Three, it is best to soak in clean water for two or three days, use a nylon brush or wire brush to clean the dirt and impurities on the stone and remove the odor.
Fourth, it is best to spray with high pressure faucets, if necessary, you can add detergent or detergent and other chemical detergents, easy to carefully observe the texture of the ornamental stone, color, shape, etc.
Fifth, suitable for the water plate of the stone can generally be water cultivation. Water it once a day or two to keep it moist and alive. The stone that should not be sprayed with water should also be wiped often with a dry cloth to keep it clean.
Wash the stone with vinegar.
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Vinegar cleaning stone must pay attention to grasp the concentration.
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Stone is an alkaline substance, while vinegar is an acidic substance. The use of acid-base neutralization reaction can clean the surface of the stone smooth, but to the right amount, too much concentration will corrode the stone, thus playing a counter-effect.
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1, soaking method:
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For the stones with more spots can use the soaking method, first take a basin to add the right amount of water, add the right amount of vinegar, stir evenly and put the stone, and pay attention to observe, until you feel that you can wipe it out, wipe it with a towel, and wash it with clean water.
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2, wipe test method:
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The surface is relatively smooth spots not many stones, you can use the rub test method can be used, take a wet towel dip a little vinegar, in the stone has spots on the place to wipe a few more times on it, wipe a few times after washing with water, feel not clean in the repeated wipe several times can wipe clean.