Protection for pre-processing the stone is the best way to solve the problem, reduce the water absorption and absorption. For stone disease has occurred, to actively seek remedial measures, such as during cleaning to renovation after coloring, but also to carry out protective treatment.
1) Stone shall meet the basic requirements Protectant
Clean-up of: to remove surface stains and salt stone, repair cracks, color;
Protection: The surrounding environment can alleviate or stop the erosion of the stone, destruction and defacement;
Compatibility: the role of protective agent itself and the process can not produce negative effects on the stone, such as changes to the yellow stone, color, increased robustness, etc.
Weather resistance: The protection of the stone should be treated as long as possible protective life;
Recoatability: The protection of the stone treated, age and failure to achieve protection, the protection can be handled by re-re-generated protective effect.
2) the proper selection of protective agent
The stone used must have a better protective agent protective effect, should also consider the stone's surface due to the different conditions that may arise for the protection and decorative effect. Use should have an important principle, that is, no matter what level of protective agent, a large area before the construction should be carried out in the local small scale, and then confirm the effect of large-scale use. Do yourself a pretty good idea, you can avoid the stone material and protectants incompatibility does not match the adverse effects of care. The specific choice of method can be simply summarized as follows:
(1) Smooth Stone stone can be used to increase the gloss of the protective agent;
(2) decorative effect required to deepen the color of the stone should be used by Yan protective agent;
(3) to maintain the original appearance of the stone color protective agent should be used
(4) installation of the wet paste when the bottom of the stone as far as possible without affecting the selection of stone and cement mortar bond fastness Protectant;
(5) to consider the environmental requirements of construction in a confined space, should try to use water repellant or protective agent without volatile organic solvents;
(6) stone surface or hanging the stone surface, waterproof protective agent can also be water-repellent protective agent;
(7) regular contact with the oil, and should be used in anti-oil-repellant;
(8) Environmental temperature is too low, water-based protective agent can not be frozen because of the construction, then they should use oil-repellant, the construction should pay attention to fire safety.
3) The elements of the construction process and
Protectant different stone have different construction requirements, before the construction should be based on the use of protective agent used in the actual situation of instructions and on-site construction program to develop feasible cut. Construction, stone finishes and must be related to the type of protective agent to determine the way of protective construction.
Note the pre-construction
(1) thorough cleaning of stone water spots, rust, yellow, white China, mildew and other stains and salt. If stone, tile surface waxing, you should use oil, wax removers remove wax, oil. Protective agent can effectively penetrate the stone, tile interior.
(2) dry stone surface. Using the oven or gas gun or use of sun drying. To ensure the use of protective agent before the stone is completely dry.
(3) cool stone, tile surface to 40 ~ C ~ 50 ~ C.
(4) maintaining the construction site of a well-ventilated.
Protective construction:
(1) uniform spray repellant, do not neglect any one corner.
(2) put it aside for 5 ~ 10rain. When non-reflective surface of the liquid to be a second brushing.
(3) If circumstances required for the third time brushing, you can repeat the operation in turn. According to test results and the small amount of stone to choose appropriate protective agent tips instructions.
(4) the way the construction of stone protection
Brush (with brush), painted (with sponge), rub (cloth), spray (low pressure spray gun), soak (with immersion tank),
Tu (with rollers), poured over (fabric covered with container and wet).
Effect of consolidation
Just finished with the stone should be placed in ventilated dry room for 24 hours, this period can not be wet. Test ban drops to prevent rain. To ensure that nature conservation should be waterproof effect 5 days after use. Best results is 7 days later.
Special Note
(1) a large area with a small area before experiments to confirm results.
(2) Please read the packaging before using instructions or operating procedures.
(3) the protective effect of good or bad, and the repellant quality, construction, technology and professional skills of construction workers in it protection is best to consult a professional before the construction of stone curing agent professional stone manufacturers and maintenance companies, which can the quality of the protection guaranteed.
(4) stone surface of the water droplets can not be the protector of the evaluation criteria. Care agent deal with the same substrate, the surface contact angle of water droplets over rough surfaces and delicate, with a large dose of the contact angle greater than the dose is small, air temperature and humidity, surface contact angle is greater than the area of small temperature and humidity areas. Determine the effect of water quality or the protective agent should go to a qualified inspection agency to test.
5 Outlook and recommendations
As the material conditions and information technology advances in the protection industry is also the stone and then rapidly. New technologies, new products, new conservation content, new look at the standard are occurring. The overall trend has the following aspects: the traditional silicate products will be high-end affordable care agent to replace the pure silicone and features and variety-style diversity, cost will be higher. Professional stone manufacturer will be a protective agent, will bring more modified varieties. Professional stone care company will produce, they can provide good customer service and efficient care and a solid construction. Related to this country, industry standards and specifications will be soon.
We also need to practice constantly sum up, learning experiences and learn from their counterparts at home and abroad to jointly improve the protection of stone.
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