Construction scheme of real stone paint for cerami

2022-08-04
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Construction scheme of real stone paint for renovation of exterior wall tiles

construction scheme of real stone paint for renovation of exterior wall tiles_ Analysis of the largest stone paint supplier in Northwest China September 3, 2018

the society is constantly developing, people's living standards are also constantly improving, the public's desire for natural beauty is only increasing, and the exterior wall decoration has always been the focus of public attention. Genuine stone paint is a kind of imitation stone paint which is very similar to marble and granite. It has a natural and real natural color, gives people an elegant, harmonious and solemn aesthetic feeling, and has the characteristics of fire prevention, waterproof, acid and alkali resistance and pollution resistance. It is non-toxic, tasteless, strong adhesive force, and never fade. It can effectively prevent the erosion of buildings by the harsh external environment and prolong the service life of buildings. It has become the preferred coating for the market and consumers in the exterior wall decoration of China. However, ceramic tiles have been very popular in the past ten years. Almost all exterior walls are made of ceramic tiles. Now many people plan to transform the exterior wall tiles into stone paint. They don't know how to construct. Lesbon paint manufacturer has been selling real stone paint directly for more than ten years. It supports labor and material contracting and customized production. It sells well in the northwest. Engineering cases are all over the country. It shares the construction scheme for ceramic tile transformation of real stone paint to everyone. You are welcome to leave a private message if necessary

process flow of real stone paint for ceramic tile renovation base surface treatment

spraying or rolling sand resistant primer

batch scraping ceramic tile renovation putty

spraying or rolling in addition, such as PPS, ASA Pctg and engineering alloy materials also use the application of sealing primer primer primer

trench division treatment

spraying natural colored sand stone paint

spraying dust-proof finishing coat

the first step of the construction guide base surface treatment

as the condition of the base surface directly affects the construction quality of Jianrong stone paint, the base surface must be carefully inspected and accepted before decoration. The specific requirements are introduced as follows:

the base surface shall be flat and clean without oil, floating ash or other pollutants

for the original old coating on the old wall or other base surface, the adhesion shall be confirmed by test; If the adhesion is poor, it must be completely removed

base acceptance standard:

surface flatness: generally, the dislocation shall be less than 3mm. If it exceeds this range, it shall be polished to make it smooth

no delamination, hollowing, no crack on the surface layer, no wind crack greater than 0.2mm, no obvious sand hole and other defects

the surface layer reaches advanced plastering, that is, the perpendicularity of the production surface is not more than 3mm, the surface flatness is less than 2mm, the perpendicularity of the internal and external corners is less than 2mm, and the squareness is 2mm

the surface must be flat, clean, uniform in color, free of cracks, obvious joints, dust, oil stains, exposed reinforcement, iron wire, sawdust, red corners and gray lines, straight, square, clear and beautiful

the corner protection shall comply with the construction specifications, and the width and depth of the separation joint (strip) shall be uniform, flat and smooth, with neat edges and corners, horizontal and vertical

alkalinity of base course: pH value of base course wall is lower than 10

moisture content of base course: the moisture content of base course is less than 8%, and the newly painted mortar surface course can only be constructed after about 3 weeks

surface dirt: the surface dust, oil stain, etc. shall be removed with steel wire brush, synthetic detergent, etc., or polished with coarse emery cloth. The construction can be carried out after cleaning and polishing

step 2: spray or roll the sand proof primer

the sand proof primer can quickly penetrate into the interior of the substrate, form a tight sealing and isolation layer, and the paint film has good flexibility, which can effectively prevent the external acid, alkali, water, oil and other substances from eroding the wall, achieve the best pH balance, effectively prevent the falling off of the paint film, efflorescence of the paint film, and flower of the paint film, and also prevent the external wall decoration effect from being affected by the mold of the substrate; Improve the adhesion and high hiding power of the finish paint, and save the exterior wall finish paint

it is applicable to all kinds of outdoor substrates, such as cement, masonry, concrete and other new and old walls, especially for new walls and walls with heavy alkaline base materials

construction ratio: see the product manual of each model for details

brushing or roller coating: add clean water to dilute and mix evenly. Appropriate adjustment can be made according to the difficulty of construction and the difference of ambient temperature, and excessive dilution is not allowed

ordinary spraying: add 5 ~ 10% clean water to dilute and stir evenly

airless spraying: it is not recommended to dilute with water

it is better to put the adjusted material to be matured for 10 ~ 15 minutes and then mix it evenly

theoretical brushing area: kg/㎡

construction method: brushing, roller coating and spraying

step 3: apply ceramic tile renovation putty and polish

(1) apply putty with trowel, scraper or steel batch from top to bottom. Each time of putty shall not be applied too thick, which is easy to crack and fall off. Generally, one layer of exterior wall putty is about 0.5~1.0mm

(2) the putty is usually applied twice. The interval between the two putties cannot be too short. The second putty must be applied after the first putty is dry

(3) do not scrape back and forth too much when applying putty to avoid curling, falling off or extruding the rubber in the putty, and the sealed surface is not easy to dry

(4) when applying putty, pay attention to the method, press the blade with your index finger, press the putty into the defect, fill it up, and scrape the putty around to minimize the traces of putty

(5) after the putty is completely dry (usually 12 hours in sunny days), polish it with corresponding sandpaper and clean the dust

step 4 construction of exterior wall primer: (exterior wall alkali resistant primer or sealing primer)

painting exterior wall primer is the third process in the coating structure. After painting, a film is formed on the putty layer. The particle size of its lotion is very small and can deeply penetrate into the coated base. It has the following functions:

the primer can quickly penetrate into the interior of the base material and the putty layer to form a tight sealing and isolation layer. The paint film has good flexibility and can effectively prevent the external acid, alkali, water, oil and other substances from eroding the wall, achieve the best pH balance, effectively prevent the falling off of the paint film, efflorescence of the paint film and the blooming of the paint film, and also prevent the mold breeding in the base material or the putty layer from infiltrating and affecting the decorative effect of the external wall. It can improve the adhesion and high hiding power of the top coat. At the same time, it can also use color paste to color and save the top coat of the external wall

it is applicable to all kinds of outdoor substrates, such as cement, masonry, concrete and other new and old walls, especially for new walls and walls with heavy alkaline base materials

construction ratio: see the product specifications of various models for details.

brush or roll coating: add clean water to dilute and mix evenly. Appropriate adjustment can be made according to the difficulty of construction and the difference of ambient temperature, and excessive dilution is not allowed

ordinary spraying: add 5 ~ 10% clean water to dilute and stir evenly

airless spraying: it is not recommended to dilute with water

it is better to put the adjusted material to be matured for 10 ~ 15 minutes and then mix it evenly

theoretical brushing area: ㎡/kg/time

construction method: brushing, roller coating and spraying. Construction thickness (wet film) greater than 30 μ m. For best results

construction conditions: the environment and wall temperature are above +5 ℃, and the relative humidity is not higher than 85%. The water content of the wall is less than 10% and the pH value is less than 10. The next process can be carried out only after the primer is completely dry

primer acceptance standard:

the surface shall be smooth, flat, uniform, clean, free of sand holes, obvious brush marks, missing coating, etc. through visual inspection, and the appearance of the large surface shall be good

step 5: Construction of trench joints by division

level and measure the size on the wall according to the design requirements, snap the line with ink cartridge, set the position, and stick masking paper for protection

step 6 construction of real stone paint:

pour it out after opening the tank and mix it well. It is recommended to directly construct without adding water for dilution. If it is necessary to add water at most not more than 3%, please do not pour the diluted real stone paint back into the original package, and use up the products that have been opened as soon as possible. Select proper caliber spray gun and small caliber spray gun according to the requirements of spraying effect Ф 2 ~ 4mm medium caliber spray gun Ф 4 ~ 6mm, large diameter spray gun Ф 6 ~ 8mm, and the nozzle is 40 ~ 50cm away from the wall. Generally, the air compressor pressure shall be adjusted to about 4 ~ 7kg f during spraying. For the process of spraying real stone paint with different shapes, the specifications and dimensions shall be designed according to the requirements, and then the required models shall be made with masking paper on the painted wall surface. After spraying real stone paint, the masking paper shall be removed before the real stone paint is dry. When spraying a large area, the dividing line shall be used as the junction for construction, and the spraying thickness shall be controlled at about kg/m2. Do not construct too thick and too thin to ensure consistent spraying effect, which can effectively avoid obvious interface, uneven thickness and color difference

construction conditions: the environment and wall temperature are above +5 ℃, the relative humidity is not higher than 85%, the wall moisture content is less than 10%, and the pH value is less than 10

◆ quality requirements for stone paint construction

a: the spraying surface shall be flat, free of blooming, alkali efflorescence and color biting

b:1m front view, uniform thickness and thickness

c: no sagging, pimples and splashing

d: face up to the same color, without sand holes, scratches and missed spraying

e: decorative line and color separation line are dry and straight

f: the surfaces of windows and other components are clean

step 7 grinding:

after the stone paint is dry, grind the particles with sharp corners on the surface of the stone paint (about%), which can increase the beauty of the stone paint, reduce sharpness and avoid dust accumulation

step 8: Construction of dust-proof glossy finish coat:

the finish coat can be sprayed only after the main material layer is completely dry (usually 24 hours in sunny days). The air pressure of the air compressor is required to be more than 4kg. The muzzle of the spray gun is perpendicular to the wall, 750px-1250px away. Spray it back and forth evenly, and spray the finish coat twice. First, a thin and uniform layer shall be sprayed without omission

open the tank and stir evenly. Use it according to the water addition ratio or diluent specified for each model. It is recommended to use spraying construction with a spraying thickness of 0.1 ~ 0.125kg/m2. Dry film thickness 30 μ m。

◆ construction quality requirements for real stone paint finish

a: no blooming, no missing spraying, consistent gloss

b: no sagging, pimples and splashing

c: the surfaces of windows and other components are clean

precautions please select a professional stone paint construction team. An experienced construction team plays a key role in the project quality

due to the heavy weight and large amount of genuine stone paint, the large package size (75kg/barrel) is generally used. Precipitation will occur during long-distance transportation or long-term storage. Before barrel opening construction, the whole barrel shall be filled with bottom to bottom and mixed evenly. The construction viscosity has been adjusted before leaving the factory. It is not recommended to add water to dilute the viscosity

it is recommended to use the hanging basket to spray the real stone paint. The scaffold spraying will leave the scaffold joint, which can not be seen without dismantling the scaffold. It is obvious after dismantling

air temperature: generally, the construction is carried out under the temperature above 5 º C and below 35 º C; Humidity: the air humidity suitable for construction is 60%--70%, and construction is not allowed in rainy days or above 85%; It shall be ensured that no rain is allowed within 24 hours after spraying; Real stone paint cannot be sprayed when the wind force is greater than grade 4

the air pressure of the air compressor should be more than 8kg, and the actual amount of coating will vary depending on the roughness of the base surface or different construction processes. Before construction, the coating rate shall be tested according to the site conditions

about the problem of sand falling during spraying: no matter any spraying, there will be loss. The phenomenon of sand falling during spraying should be judged according to the viscosity of construction products, construction air pressure, construction personnel practices, etc. it is recommended to conduct the coating rate test before the commencement of the project

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