CN101586401A - Method for retreading old porcelain brick wall by paint - Google Patents
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Abstract
The invention relates to a method for retreading the old porcelain brick wall by the paint, a retreading decorative layer composed of a interface binder layer (2), a first polymer cracking-resistant putty layer (3), a second polymer cracking-resistant putty layer (4), a glass fiber girding cloth (5), a third polymer cracking-resistant putty layer (7), a double-component flexible putty layer (9), a smooth surface putty layer (9), a seal coat layer (10), a middle coating layer (11), a flexible silicone-acrylate latex paint layer (12) and a fluoric-carbon coating varnish layer (13) is formed on the old wall surface porcelain brick of the old wall (1), an anchor nail (6) passes through the glass fiber gridding cloth (5), the second polymer cracking-resistant putty layer (4) and the first polymer cracking-resistant putty layer (3) and is embedded in the old wall (1) for the mechanical reinforcement, all layers above are dried and solidified and are integrated with the old wall (1) firmly to complete the retread of the old wall surface. The construction cost and the labor strength are low, the old porcelain brick on the wall surface can not fall off, the decorative is high.
Description
Technical field
The present invention relates to a kind of method of retreading old porcelain brick wall by paint, be applicable to the renewal and reform decorative engineering of various old metopes.
Background technology
In recent years, the incident that cracking such as ceramic tile, stone material, face brick, mosaic because of the high-rise building outer wall face falls and hurts sb.'s feelings usually takes place, simultaneously, through long-term exposing to the sun and rain make many existing buildings old metope for example: various ceramic tiles, stone material, face brick, mosaic etc. have not possessed decorative effect, therefore, need carry out renewal and reform to old metope.To the renewal and reform of old metopes such as ceramic tile, normally knock out ceramic tile, stone material, face brick, mosaic etc. at present, whitewash decoration then again.The shortcoming of this renewal and reform trailing is: the construction cost height, and labour intensity is big, and the normal operation that also influences building is used.Occur in recent years directly on old porcelain brick wall, carrying out the remodeling method that coating whitewashes decoration, for example, Chinese patent application 01129004.8 disclosed method, but the security hidden trouble that will fall from now on for ceramic tile does not thoroughly solve.
Summary of the invention
The objective of the invention is: provide a kind of and can reduce construction costs, the construction period shortens, the method for the retreading old porcelain brick wall by paint of the coating adhesion-tight behind the renewal and reform, anti-cracking waterproof, good decorative property.
The technical scheme that realizes the object of the invention is: a kind of method of retreading old porcelain brick wall by paint is to make by the interface adhesive layer at the old porcelain brick wall of old body of wall, first pass polymers anti-cracking putty layer, second time polymers anti-cracking putty layer, glass fiber reticular cloth, the 3rd time polymers anti-cracking putty layer, two component flexible putty layers, the light face putty layer, the seal coat layer, the middle coat of paint, the renovation decorative layer that flexible silicon third emulsion layer coating and fluorine carbon clearcoat layer constitute, holdfast passes glass fiber reticular cloth, second time polymers anti-cracking putty layer and first pass polymers anti-cracking putty layer embed old body of wall, carry out mechanical consolidation, constituting behind each layer dry solidification of renovation decorative layer with old body of wall strong bonded is one, finishes the renovation to old porcelain brick wall.
The concrete construction sequence of the method for above-mentioned coating retreading old porcelain brick wall is as follows:
The first step is checked the old porcelain brick wall of old body of wall, removes loosening ceramic tile, then cleaning residue ceramic tile surface;
The second step roller coating or brushing interface adhesive, the interface adhesive layer of formation covers the whole old porcelain brick wall of old body of wall;
The 3rd step criticized and scrapes polymers anti-cracking putty, filled up smooth ceramic tile seam and vacancy, formed first pass polymers anti-cracking putty layer;
The 4th step criticized and scrapes polymers anti-cracking putty, formed second time the polymers anti-cracking putty layer, simultaneously glass fiber reticular cloth was sticked on polymers anti-cracking putty layer surface second time;
The 5th step was passed the metope matrix that glass fiber reticular cloth, second time polymers anti-cracking putty layer and first pass polymers anti-cracking putty layer embed old body of wall with holdfast, and its insert depth is at least 25mm, formed mechanical consolidation;
The 6th step batch scraped polymers anti-cracking putty and covers holdfast and levelling fully, formed the polymers anti-cracking putty layer the 3rd time;
The 7th step batch was scraped twice pair of component flexible putty, formed two group flexible putty layers and levellings, criticized and scraped light face putty one time, formed the light face putty layer, polished flat and sprinkled water maintenance;
Spraying of the 8th step or roller coating seal coat form the seal coat layer;
Paint in the 9th step blade coating or roller coating or the brushing, form the middle coat of paint of last levelling;
The tenth goes on foot spraying or roller coating or brushes the flexible silicon third emulsion surface coating twice, forms flexible silicon third emulsion layer coating;
The 11 step spraying or roller coating or brushing fluorine carbon coating varnish form fluorine carbon clearcoat layer, and the renovation to old porcelain brick wall is finished in acquisition and the renovation decorative layer that old body of wall strong bonded is an one behind above-mentioned each layer dry solidification
In the method for above-mentioned coating retreading old porcelain brick wall, total build of described first pass polymers anti-cracking putty layer, second time polymers anti-cracking putty layer and the 3rd time polymers anti-cracking putty layer is 4～10mm; Total build of two component flexible putty layers is 1mm at least; Total build of flexible silicon third emulsion layer coating is 40～60 μ m; The build of fluorine carbon clearcoat layer is 10～20 μ m.
In the method for above-mentioned coating retreading old porcelain brick wall, the distribution density of holdfast is 2～6/m
2, its distribution is blossom type.
In the method for above-mentioned coating retreading old porcelain brick wall, described holdfast is the expansion plastic holdfast of band anchor lid, holdfast cracking resistance bearing capacity 〉=0.3KN, and its anchor lid diameter is 50mm, the holdfast specification is a kind of among φ 8 * 75mm, φ 8 * 95mm or the φ 8 * 55mm.
In the method for above-mentioned coating retreading old porcelain brick wall, when glass fiber reticular cloth sticked on second time polymers anti-cracking putty layer surface, adjacent two glass fiber reticular cloths had the lap of 5mm at least.
In the method for above-mentioned coating retreading old porcelain brick wall, described glass fiber reticular cloth is alkaline-resisting enhancing glass fiber reticular cloth, gel content 〉=16%, and its mass area ratio is 300g/m at least
2, radial fragmentation brute force 〉=2000N/50mm, broadwise ultimate strength 〉=2000N/50mm.
In the method for above-mentioned coating retreading old porcelain brick wall, scrape first pass polymers anti-cracking putty, batch scrape second time polymers anti-cracking putty and batch scrape the time interval of the 3rd time polymers anti-cracking putty and batch scrape every time interval for described batch and be 4～24 hours all over two component flexible putties, light face putty and the application flexible silicon third emulsion surface coating.
In the method for above-mentioned coating retreading old porcelain brick wall, the percentage by weight of described each component of interface adhesive is: acrylic emulsion 40%～60%, cellulose 0.1%～2%, silicone defoamer 0.01%～0.5%, heterocyclic anticorrisive agent 0.01%～0.5%, all the other are water;
Described polymers anti-cracking putty adds the water formation that stirs when using with exterior wall levelling dry-powder putty; Exterior wall levelling dry-powder putty is made up of redispersibility latex powder, 40～100 order quartz sands, cement, polypropene staple and synthetic cellulose;
Described bi-component flexible putty is made of first, second two components, the part by weight of first component/second component is 1.5～4: 1, the first component is a flexible putty, the percentage by weight of its each component is: 100～150 order quartz sands, 20%～30%, 325 order French chalk 20%～30%, acrylic emulsion 10%～20%, cellulose 0.3%～2%, mineral oil defoaming agent 0.2%～2.0%, heterocyclic anticorrisive agent 0.01%～0.5%, all the other are water; The second component is the cement of Po.32.5 and above label;
Described light face putty adds the water formation that stirs when using with exterior wall light face dry-powder putty; Exterior wall light face putty is made up of redispersibility latex powder, 150～200 order quartz sands, 150～200 order calcium carbonate, cement and synthetic cellulose;
The percentage by weight of each component of described seal coat is: acrylic emulsion 20%～60%, and cellulose 0.1%～1%, heterocyclic anticorrisive agent 0.01%～0.5%, all the other are water;
The percentage by weight of each component of japanning is in described: acrylic emulsion 10%～35%, calcium carbonate 10%～30%, superfine talcum powder 5%～20%, blanc fixe 5%～20%, ammonium polyacrylate dipersant 0.4%～2.5%, silicone defoamer 0.1%～0.5%, heterocyclic anticorrisive agent 0.01%～0.1%, alkali swelling thickener 0.1%～1%, alcohol ester-120.5%～2%, all the other are water;
The percentage by weight of each component of the described flexible silicon third emulsion surface coating is: flexible silicon acrylic emulsion 40%～70%, titanium dioxide 10%～30%, mill base 0.1%～1.5%, blanc fixe 1%～10%, ammonium polyacrylate dipersant 0.3%～1.5%, alkali swelling thickener and polyurethane thickener 0.1～1%, silicone defoamer 0.1%～0.5%, heterocyclic anticorrisive agent 0.01%～0.5%, propane diols 0.5%～3%, all the other are water;
Described fluorine carbon coating varnish is 9: 1: 5～7 to form by fluororesin, complete curing agent and the diluent of fluorine element weight content 〉=18% by weight proportion.
In the method for above-mentioned coating retreading old porcelain brick wall, adhesion strength＞0.6MPa under the described polymers anti-cracking putty standard state, dynamically cracking resistance 〉=0.1mm; Adhesion strength＞0.6MPa under the described pair of component flexible putty standard state, dynamically cracking resistance 〉=0.3mm; Adhesion strength 〉=0.6Mpa under the described light face putty standard state; The performance indications of the described flexible silicon third emulsion surface coating are: contrast ratio 〉=0.93, resistance to soiling (5 circulations)≤20%, the hot strength 〉=2.0MPa under the standard state, elongation at break 〉=100%.
Technique effect of the present invention is: the renovation decorative layer that to adopt method of the present invention to form with old body of wall strong bonded be one, and this renovation decorative layer has following advantage:
1. with interface adhesive the old porcelain brick wall of old body of wall is handled, formed interface adhesive layer has guaranteed the adhesion strength of polymers anti-cracking putty layer and old porcelain brick wall;
2. adopt glass fiber reticular cloth and pass glass fiber reticular cloth, second time polymers anti-cracking putty layer and first pass polymers anti-cracking putty layer and embed old body of wall with holdfast, carry out mechanical consolidation, guaranteed that ceramic tile that old body of wall keeps can not break away from metope from now on and falls under stressed effect, improved the stability and the safety of whole renovation decorative layer;
3. the adhesion strength height of polymers anti-cracking putty layer and two component flexible putty layers, splitting resistance is good, has not only solved the problem of the adhesion strength difference of putty layer and old porcelain brick wall effectively, can also prevent to renovate the cracking of architectural surface;
4. outside the light face putty layer, be provided with the seal coat layer, utilize the fine particle of seal coat layer to be penetrated in the putty layer, not only improved the intensity of putty layer, prevent the putty layer accumulation of salt in the surface soil, and the adhesion of seal coat layer can also increase the adhesion stress of flexible silicon third emulsion layer coating and fluorine carbon clearcoat layer and putty layer;
5. in fluorine carbon clearcoat layer, be provided with flexible silicon third emulsion layer coating; such flexible design can prevent the cracking of fluorine carbon clearcoat layer effectively; prolong the application life of coating; and outermost fluorine carbon clearcoat layer has excellent in water resistance, weatherability and resistance to soiling, and whole renovation decorative layer is all had better protect and ornamental.
Compare with the renovate method that more renews ceramic tile that adopts usually at present, have clear superiority (seeing Table 1) at aspects such as safety, construction period, cost, adhesion strengths.Reinforce renewal and reform for the existing building old porcelain brick wall new method is provided.
Description of drawings
Fig. 1 is the structural representation of the formed renovation decorative layer of method of retreading old porcelain brick wall by paint of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing 1 and embodiment method of the present invention is further described in detail, but is not limited to this.
The method of retreading old porcelain brick wall of the present invention is to make by interface adhesive layer 2 at the old porcelain brick wall of old body of wall 1, first pass polymers anti-cracking putty layer 3, second time polymers anti-cracking putty layer 4, glass fiber reticular cloth 5, the 3rd time polymers anti-cracking putty layer 7, two component flexible putty layers 8, light face putty layer 9, seal coat layer 10, the middle coat of paint 11, the renovation decorative layer that flexible silicon third emulsion layer coating 12 and fluorine carbon clearcoat layer 13 constitute, holdfast 6 passes glass fiber reticular cloth 5, second time polymers anti-cracking putty layer 4 and first pass polymers anti-cracking putty layer 3 embed old body of wall 1, carry out mechanical consolidation, constituting behind each layer dry solidification of renovation decorative layer with old body of wall 1 strong bonded is one (as shown in Figure 1), finishes the renovation to old porcelain brick wall.
Used various raw materials are commercially available industrial goods among the embodiment.Implement the used instrument of the inventive method and equipment is coating and builing industry is general.
The embodiment retreading old porcelain brick wall
(1) prepares raw material
1. prepare interface adhesive: by following percentage by weight, acrylic emulsion 50%, cellulose 0.5%, silicone defoamer 0.05%, heterocyclic anticorrisive agent 0.1%, all the other are water, take by weighing raw material and mix, and are standby;
2. prepared polymer anti-crack mastic: add 40% (weight) water when using with exterior wall levelling dry-powder putty and stir, standby, its main performance index is adhesion strength＞0.6MPa under the standard state, dynamically cracking resistance 〉=0.1mm; Used exterior wall levelling dry-powder putty is that Taizhou City hundred generations ornament materials Co., Ltd in Jiangsu produces, and the trade mark is BD-660, and it is made up of redispersibility latex powder, 40～100 order quartz sands, cement, polypropene staple and synthetic cellulose;
3. prepare the bi-component flexible putty: by following percentage by weight, 100～150 order quartz sands 28%, 325 order French chalk 28%, acrylic emulsion 14%, cellulose 0.3%, mineral oil defoaming agent 0.2%, heterocyclic anticorrisive agent 0.01%, all the other are water, take by weighing raw material and mix and obtain first component flexible putty;
During use and the cement of second component Po.32.5 label, be to mix at 2.5: 1 to get final product by the part by weight of first component/second component, its main performance index is adhesion strength＞0.6MPa under the standard state, dynamically cracking resistance 〉=0.3mm;
4. prepare light face putty: add 40% (weight) water when using with exterior wall light face dry-powder putty and stir, standby, its main performance index is adhesion strength 〉=0.6Mpa under the standard state; Used exterior wall light face putty is that Taizhou City hundred generations ornament materials Co., Ltd in Jiangsu produces, and the trade mark is BD-661, and it is made up of redispersibility latex powder, 150～200 order quartz sands, 150～200 order calcium carbonate, cement and synthetic cellulose;
5. prepare seal coat: by following percentage by weight, acrylic emulsion 50%, cellulose 0.5%, heterocyclic anticorrisive agent 0.05%, all the other are water, take by weighing raw material and mix, and are standby;
6. japanning in the preparation: by following percentage by weight, acrylic emulsion 25%, calcium carbonate 20%, superfine talcum powder 15%, blanc fixe 10%, ammonium polyacrylate dipersant 0.8%, silicone defoamer 0.1%, heterocyclic anticorrisive agent 0.05%, alkali swelling thickener 0.1%, alcohol ester-120.5%, all the other are water, take by weighing raw material and mix, standby;
7. prepare the flexible silicon third emulsion surface coating: by following percentage by weight, flexible silicon acrylic emulsion 55%, titanium dioxide 20%, mill base 0.5%, blanc fixe 5%, ammonium polyacrylate dipersant 0.5%, alkali swelling thickener and polyurethane thickener 0.5%, silicone defoamer 0.1%, heterocyclic anticorrisive agent 0.05%, propane diols 1%, all the other are water, take by weighing raw material and mix, standby; The flexible silicon third emulsion surface coating main performance index is: contrast ratio 〉=0.93, resistance to soiling (5 circulations)≤20%, the hot strength 〉=3.0MPa under the standard state, elongation at break 〉=200%;
8. prepare fluorine carbon coating varnish: it is JF-2X type fluororesin (fluorine element weight content 〉=18%), complete curing agent and the diluent of producing with Jiangsu Changshu Sanaifu Zhonghao New Chemical Materials Co., Ltd, during use, be 9: 1: 5～7 to mix by weight proportion;
9. prepare holdfast: adopt the expansion plastic holdfast, band anchor lid, holdfast cracking resistance bearing capacity 〉=0.3KN; The holdfast specification is φ 8 * 75mm, φ 8 * 95mm or φ 8 * 55mm, anchor lid diameter is 50mm, select holdfast length according to adhesive layer thickness between metope and the ceramic tile layer and ceramic tile thickness, metope matrix and its insert depth that the assurance holdfast can embed the old body of wall 1 of ceramic tile are at least 25mm;
10. prepare glass fiber reticular cloth, its main performance index is: mass area ratio is 300 ± 5g/m
2, radial fragmentation brute force 〉=2000N/50mm, broadwise ultimate strength 〉=2000N/50mm, gel content 〉=16%;
(2) (construction area is 20000m in construction
2)
Concrete construction sequence is as follows:
The first step is checked the old porcelain brick wall of old body of wall 1, removes loosening ceramic tile, then cleaning residue ceramic tile surface;
The second step roller coating or brushing interface adhesive, the interface adhesive layer 2 of formation covers the whole old porcelain brick wall of old body of wall 1;
The 3rd step batch was scraped polymers anti-cracking putty, filled up smooth ceramic tile seam and vacancy, form the-all over polymers anti-cracking putty layer 3;
The 4th step criticized and scrapes polymers anti-cracking putty, form second time polymers anti-cracking putty layer 4, glass fiber reticular cloth 5 is sticked on second time polymers anti-cracking putty layer 4 surfaces simultaneously, when pasting glass fiber reticular cloth 5, guarantee that adjacent two glass fiber reticular cloths 5 have the lap of 5mm at least;
The 5th step was passed the metope matrix that glass fiber reticular cloth 5, second time polymers anti-cracking putty layer 4 and first pass polymers anti-cracking putty layer 3 embed old body of wall 1 with holdfast 6, and its insert depth is at least 25mm, forms mechanical consolidation; The distribution density that guarantees holdfast 6 is 2～6/m
2, its distribution is blossom type, the planarization of control screw and anchor lid;
The 6th step batch scraped polymers anti-cracking putty and covers holdfast 6 and levellings fully, formed polymers anti-cracking putty layer 7 the 3rd time, guarantee that total build of three times polymers anti-cracking putty layer 7 preferably is no more than 6mm and guarantees to cover all plastics holdfasts 6;
The 7th step criticized and scrapes twice pair of component flexible putty and levelling, formed two component flexible putty layers 8, guarantee that total build of two component flexible putty layers 8 is at least 1mm; According to the decorative design requirement, on flexible putty layer 8, carry out frame bar planning and setting-out, criticize scraped surface putty simultaneously and form light face putty layer 9, smooth and watering maintenance 24h with 400 order sand paperings;
The 8th step spraying seal coat forms seal coat layer 10;
Paint in the 9th step blade coating, form the middle coat of paint 11 of last levelling;
Twice flexible silicon third emulsion surface coating of the tenth step spraying forms flexible silicon third emulsion layer coating 12, and its build is 40～60 μ m, requires to carry out the lattice seam on flexible silicon third emulsion layer coating 12 surfaces according to decorative design and retouches black;
The 11 step spraying fluorine carbon coating varnish forms fluorine carbon clearcoat layer 13, its build 10～20 μ m, and the renovation to old porcelain brick wall is finished in acquisition and the renovation decorative layer that old body of wall 1 strong bonded is an one behind above-mentioned each layer dry solidification
At work progress, different according to the environment temperature in when construction and humidity batch scrape first pass polymers anti-cracking putty, batch scrape second time polymers anti-cracking putty and batch scrape the time interval of the 3rd time polymers anti-cracking putty and batch scrape every time interval all over two component flexible putties, light face putty and the application flexible silicon third emulsion surface coating should be controlled at 4～24 hours.
With construction area 20000m
2Be example, renovate (embodiment) by the inventive method and strike ceramic tile and whitewash method relatively with usually adopting to have obvious advantage, specifically see Table 1 at aspects such as economy, safeties.
Table 1
| Item compared | Embodiment (the inventive method) | Strike ceramic tile and whitewash method |
| Working security | The safety factor height | There is the falling object from high altitude hidden danger of hurting sb.'s feelings |
| Construct man-hour (my god) | 80 | 150 |
| Operating expenses (ten thousand yuan) | 350 | 800 |
| Labour intensity | Lower | High |
| The feature of environmental protection | There are not noise, dust pollution | There are noise, dust pollution |
| Adhesion strength, MPa | ＞0.9 | ＞0.7 |
The inventive method is decorated also applicable to the renewal and reform of stone material, face brick, mosaic stone material, face brick, the old metope of mosaic, and effect is fine.
Claims (10)
1, a kind of method of retreading old porcelain brick wall by paint, it is characterized in that, make by interface adhesive layer (2) at the old porcelain brick wall of old body of wall (1), first pass polymers anti-cracking putty layer (3), second time polymers anti-cracking putty layer (4), glass fiber reticular cloth (5), the 3rd time polymers anti-cracking putty layer (7), two component flexible putty layers (8), light face putty layer (9), seal coat layer (10), the middle coat of paint (11), the renovation decorative layer that flexible silicon third emulsion layer coating (12) and fluorine carbon clearcoat layer (13) constitute, holdfast (6) passes glass fiber reticular cloth (5), second time polymers anti-cracking putty layer (4) and first pass polymers anti-cracking putty layer (3) embed old body of wall (1), carry out mechanical consolidation, constituting behind each layer dry solidification of renovation decorative layer with old body of wall (1) strong bonded is one, finishes the renovation to old porcelain brick wall.
2, the method for retreading old porcelain brick wall by paint according to claim 1 is characterized in that, concrete construction sequence is as follows:
The first step is checked the old porcelain brick wall of old body of wall (1), removes loosening ceramic tile, then cleaning residue ceramic tile surface;
The second step roller coating or brushing interface adhesive, the interface adhesive layer (2) of formation covers the whole old porcelain brick wall of old body of wall (1);
The 3rd step criticized and scrapes polymers anti-cracking putty, filled up smooth ceramic tile seam and vacancy, formed first pass polymers anti-cracking putty layer (3);
The 4th step criticized and scrapes polymers anti-cracking putty, formed second time polymers anti-cracking putty layer (4), simultaneously glass fiber reticular cloth (5) was sticked on second time polymers anti-cracking putty layer (4) surface;
The 5th step was passed the metope matrix that glass fiber reticular cloth (5), second time polymers anti-cracking putty layer (4) and first pass polymers anti-cracking putty layer (3) embed old body of wall (1) with holdfast (6), and its insert depth is at least 25mm, formed mechanical consolidation;
The 6th step batch scraped polymers anti-cracking putty and covers holdfast (6) and levelling fully, formed the 3rd time polymers anti-cracking putty layer (7);
The 7th step batch was scraped twice pair of component flexible putty, formed two component flexible putty layers (8) and levelling, criticized and scraped light face putty one time, formed light face putty layer (9), polished flat and sprinkled water maintenance;
Spraying of the 8th step or roller coating seal coat form seal coat layer (10);
Paint in the 9th step blade coating or roller coating or the brushing, form the middle coat of paint (11) of last levelling;
The tenth goes on foot spraying or roller coating or brushes the flexible silicon third emulsion surface coating twice, forms flexible silicon third emulsion layer coating (12);
The 11 step spraying or roller coating or brushing fluorine carbon coating varnish form fluorine carbon clearcoat layer (13), and acquisition is the renovation decorative layer of one with old body of wall (1) strong bonded behind above-mentioned each layer dry solidification, finishes the renovation to old porcelain brick wall.
3, the method for retreading old porcelain brick wall by paint according to claim 2, it is characterized in that total build of described first pass polymers anti-cracking putty layer (3), second time polymers anti-cracking putty layer (4) and the 3rd time polymers anti-cracking putty layer (7) is 4～10mm; Total build of two component flexible putty layers (8) is 1mm at least; Total build of flexible silicon third emulsion layer coating (12) is 40～60 μ m; The build of fluorine carbon clearcoat layer (13) is 10～20 μ m.
4, the method for retreading old porcelain brick wall by paint according to claim 2 is characterized in that, the distribution density of holdfast (6) is 2～6/m
2, its distribution is blossom type.
5, according to the method for claim 2 or 4 described retreading old porcelain brick wall by paint, it is characterized in that described holdfast (6) is the expansion plastic holdfast of band anchor lid, holdfast cracking resistance bearing capacity 〉=0.3KN, its anchor lid diameter is 50mm, and the holdfast specification is a kind of among φ 8 * 75mm, φ 8 * 95mm or the φ 8 * 55mm.
6, the method for retreading old porcelain brick wall by paint according to claim 2 is characterized in that, when glass fiber reticular cloth (5) sticked on second time polymers anti-cracking putty layer (4) surface, adjacent two glass fiber reticular cloths (5) had the lap of 5mm at least.
According to the method for claim 2 or 6 described retreading old porcelain brick wall by paint, it is characterized in that 7, described glass fiber reticular cloth (5) is alkaline-resisting enhancing glass fiber reticular cloth, gel content 〉=16%, its mass area ratio is 300g/m at least
2, radial fragmentation brute force 〉=2000N/50mm, broadwise ultimate strength 〉=2000N/50mm.
8, the method for retreading old porcelain brick wall by paint according to claim 2, it is characterized in that, scrape first pass polymers anti-cracking putty, batch scrape second time polymers anti-cracking putty and batch scrape the time interval of the 3rd time polymers anti-cracking putty and batch scrape every time interval for described batch and be 4～24 hours all over two component flexible putties, light face putty and the application flexible silicon third emulsion surface coating.
9, the method for retreading old porcelain brick wall by paint according to claim 2, it is characterized in that, the percentage by weight of described each component of interface adhesive is: acrylic emulsion 40%～60%, cellulose 0.1%～2%, silicone defoamer 0.01%～0.5%, heterocyclic anticorrisive agent 0.01%～0.5%, all the other are water;
Described polymers anti-cracking putty adds the water formation that stirs when using with exterior wall levelling dry-powder putty; Exterior wall levelling dry-powder putty is made up of redispersibility latex powder, 40～100 order quartz sands, cement, polypropene staple and synthetic cellulose;
Described bi-component flexible putty is made of first, second two components, the part by weight of first/second is 1.5～4: 1, the first component is a flexible putty, the percentage by weight of its each component is: 100～150 order quartz sands, 20%～30%, 325 order French chalk 20%～30%, acrylic emulsion 10%～20%, cellulose 0.3%～2%, mineral oil defoaming agent 0.2%～2.0%, heterocyclic anticorrisive agent 0.01%～0.5%, all the other are water; The second component is the cement of Po.32.5 and above label;
Described light face putty adds the water formation that stirs when using with exterior wall light face dry-powder putty; Exterior wall light face putty is made up of redispersibility latex powder, 150～200 order quartz sands, 150～200 order calcium carbonate, cement and synthetic cellulose;
The percentage by weight of each component of described seal coat is: acrylic emulsion 20%～60%, and cellulose 0.1%～1%, heterocyclic anticorrisive agent 0.01%～0.5%, all the other are water;
The percentage by weight of each component of japanning is in described: acrylic emulsion 10%～35%, calcium carbonate 10%～30%, superfine talcum powder 5%～20%, blanc fixe 5%～20%, ammonium polyacrylate dipersant 0.4%～2.5%, silicone defoamer 0.1%～0.5%, heterocyclic anticorrisive agent 0.01%～0.1%, alkali swelling thickener 0.1%～1%, alcohol ester-120.5%～2%, all the other are water;
The percentage by weight of each component of the described flexible silicon third emulsion surface coating is: flexible silicon acrylic emulsion 40%～70%, titanium dioxide 10%～30%, mill base 0.1%～1.5%, blanc fixe 1%～10%, ammonium polyacrylate dipersant 0.3%～1.5%, alkali swelling thickener and polyurethane thickener 0.1～1%, silicone defoamer 0.1%～0.5%, heterocyclic anticorrisive agent 0.01%～0.5%, propane diols 0.5%～3%, all the other are water;
Described fluorine carbon coating varnish is 9: 1: 5～7 to form by fluororesin, complete curing agent and the diluent of fluorine element weight content 〉=18% by weight proportion.
10, according to the method for claim 2 or 9 described retreading old porcelain brick wall by paint, it is characterized in that adhesion strength＞0.6MPa under the described polymers anti-cracking putty standard state, dynamically cracking resistance 〉=0.1mm;
Adhesion strength＞0.6MPa under the described pair of component flexible putty standard state, dynamically cracking resistance 〉=0.3mm;
Adhesion strength 〉=0.6Mpa under the described light face putty standard state;
The performance indications of the described flexible silicon third emulsion surface coating are: contrast ratio 〉=0.93, resistance to soiling (5 circulations)≤20%, the hot strength 〉=2.0MPa under the standard state, elongation at break 〉=100%.
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