1. Failure to prescribe the right medicine
Some contaminated lesions look alike.
Some people mistake rust yellow for pigment pollution to treat, mistake water spots for oil stains to treat, and clean oily marker pollution by cleaning pigment pollution. There are also customers who treat the seals that are corroded by acid and burnt by hot oil as pollution.
The prerequisite for effective treatment of pollution and disease is to correctly judge the cause of pollution and disease.
2. Mixed contaminated lesions
The composition of stone is complicated, and the environment is also complicated. Therefore, many kinds of pollution and disease are often patronized together.
Stones that have not been protected or have failed protection will easily absorb water and dirt. Then it is very likely to be contaminated by foreign pollutants and produce rust yellow and back alkali at the same time.
Stones like waterscapes and bathrooms are prone to white bloom and rusty yellow, but also have mold, scale, residues of household chemicals, and corrosion of acid detergents.
Therefore: For stones with complex causes and complex environments, do not expect a single type of cleaning agent to be completely cleaned. Be sure to prepare a few more types of cleaning agents for different types of pollution.
E.g:
Rust remover for marble and granite for rust yellow, VD pigment remover for water-based color pollution, VD whitewash cleaner for alkali, whitewash, scale, etc., water spot with VD water spot cleaner, glue oil and Use VD degreasing and degreasing agent for resin glue and paint pollution, and use Jie Duo or VD degreasing paste for edible oil pollution.
One is not good for two, and two is not good for three. Pollution control must also use "wheel warfare".
3. Deep pollution
We all know that stone is a porous material with densely packed pores inside. Stones that have not been protected or failed to protect can easily be contaminated and penetrate into the deep layer.
Among them, rubber oil penetration is the most typical example. I often receive pictures from customers-the glue used to stick the stone has leaked from the back of the stone to the surface of the stone. The customer said anxiously: "I tried a lot of potions and they didn't work, what should I do?".
For this kind of glue oil pollution, my suggestion is: VD degreasing and degreasing agent should be treated with "applied method".
The customer is very anxious: "I tried it, but the effect is not obvious."
Hey, if this kind of glue that penetrates into the stone is so easy to be solved, then our stone care is too easy to eat.
This kind of pollution returning from the deep layer, and the pollution that penetrates into the deep layer of the stone, you must be patient if you want to clean it completely! patience! patience! patience! In actual operation, it must be applied multiple times to be completely eradicated.
After the first application, the effect is not obvious, but as long as there is a little effect, the method is correct. If you continue to apply it patiently for more than 3 times, the effect will definitely come out.
4. Contaminated lesions are prone to recurrence
After the contaminated lesions of the stone are cleaned, effective protective treatment must be carried out on the stone, and daily cleaning work must also be done to avoid pollution and lesion regeneration.
for example:
If the stone is blackened by mold, if it cannot be cleaned frequently after cleaning, the dirt deposited on the surface of the stone will definitely be moldy again when it meets water and moisture.
After the stone rust and water spots are treated, if there is no effective protection, water spots and rust yellow will definitely occur again in a humid environment for a long time.
Besides, the water scene, as long as there is water, there will be scale, dust and scale again, so it must be cleaned regularly.
