CN115785716A - Fireproof high-temperature-resistant heavy-duty anticorrosive coating and preparation method thereof - Google Patents
Fireproof high-temperature-resistant heavy-duty anticorrosive coating and preparation method thereof Download PDFInfo
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- CN115785716A CN115785716A CN202211533354.3A CN202211533354A CN115785716A CN 115785716 A CN115785716 A CN 115785716A CN 202211533354 A CN202211533354 A CN 202211533354A CN 115785716 A CN115785716 A CN 115785716A
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- 238000000576 coating method Methods 0.000 title claims abstract description 97
- 239000011248 coating agent Substances 0.000 title claims abstract description 92
- 238000002360 preparation method Methods 0.000 title claims description 10
- 229910000611 Zinc aluminium Inorganic materials 0.000 claims abstract description 31
- HXFVOUUOTHJFPX-UHFFFAOYSA-N alumane;zinc Chemical compound [AlH3].[Zn] HXFVOUUOTHJFPX-UHFFFAOYSA-N 0.000 claims abstract description 31
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 17
- 239000010703 silicon Substances 0.000 claims abstract description 17
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000011230 binding agent Substances 0.000 claims abstract description 16
- 238000005260 corrosion Methods 0.000 claims abstract description 16
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 8
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 8
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 26
- 238000000227 grinding Methods 0.000 claims description 25
- 238000005507 spraying Methods 0.000 claims description 12
- 239000003085 diluting agent Substances 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 7
- 230000005484 gravity Effects 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 239000012856 weighed raw material Substances 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 6
- 239000003921 oil Substances 0.000 claims description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 4
- 238000005422 blasting Methods 0.000 claims description 3
- 239000002987 primer (paints) Substances 0.000 claims description 3
- 238000005488 sandblasting Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000003973 paint Substances 0.000 description 7
- 238000010276 construction Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000012855 volatile organic compound Substances 0.000 description 3
- 238000001035 drying Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 206010008428 Chemical poisoning Diseases 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000006552 photochemical reaction Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000003847 radiation curing Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Abstract
The invention discloses a process method of a fireproof high-temperature-resistant heavy-duty anti-corrosion coating, which comprises a heavy-duty anti-corrosion zinc-aluminum base coat and a fireproof high-temperature-resistant coating, wherein the heavy-duty anti-corrosion zinc-aluminum base coat is coated on the surface of a base layer, the fireproof high-temperature-resistant coating is coated on the surface of the heavy-duty anti-corrosion zinc-aluminum base coat, the heavy-duty anti-corrosion zinc-aluminum base coat comprises a silicon-based binder, zinc powder, aluminum powder and an antirust penetrant, and the fireproof high-temperature-resistant coating comprises a silicon-based binder, titanium dioxide and silicon carbide. The invention has the advantages of long-acting heavy-duty anticorrosion protection, capability of resisting instantaneous high temperature of more than 1600 ℃ and high temperature of more than 1200 ℃, non-combustibility, no ignition danger and high safety factor.
Description
Technical Field
The invention relates to a coating, in particular to a fireproof high-temperature-resistant heavy-duty anticorrosive coating, and also relates to a preparation method of the coating, in particular to a preparation method of the fireproof high-temperature-resistant heavy-duty anticorrosive coating.
Background
The traditional solvent-based paint contains benzene, toluene, xylene and other extremely volatile substances, and the Volatile Organic Compounds (VOC) and solar radiation have photochemical reaction to cause air pollution.
In order to accelerate the green transformation of the coating industry, the transformation is carried out on water-based coatings, powder coatings, high-solid powder coatings and radiation curing coatings. China has come up with a series of laws, regulations and standards in recent years. Therefore, the research and development of the water-based paint are the hot topics of the paint industry at present. The method has great demands in the fields of oil refining chemical industry, bridge construction, wind power and the like.
At present, the high-performance conventional water-based environment-friendly paint in the market is not developed and popularized in a large scale, and the conventional epoxy series paint is mainly used. The key points are that the water-based environment-friendly paint has high construction difficulty, poor corrosion resistance and small adhesive force with a matrix, and cannot meet the requirements of engineering construction.
Disclosure of Invention
In order to solve the problems and the defects in the prior art, the invention aims to provide a fireproof high-temperature-resistant heavy-duty anticorrosive coating which can realize fireproof and long-term corrosion resistance on the premise of no pollution.
The fire-proof high-temperature-resistant heavy-duty coating comprises a heavy-duty zinc-aluminum base coating and a fire-proof high-temperature-resistant coating, wherein the heavy-duty zinc-aluminum base coating is coated on the surface of a base layer, the fire-proof high-temperature-resistant coating is coated on the surface of the heavy-duty zinc-aluminum base coating, the heavy-duty zinc-aluminum base coating comprises a silicon-based binder, zinc powder, aluminum powder and an antirust penetrant, and the fire-proof high-temperature-resistant coating comprises a silicon-based binder, titanium dioxide and silicon carbide.
Further, the weight ratio of the silicon-based binder, the zinc powder, the aluminum powder and the rust-proof penetrant in the heavy-duty anticorrosive zinc-aluminum base coat is 3:1:1:0.05.
further, the weight ratio of the silicon-based binder, the titanium dioxide and the silicon carbide in the fireproof high-temperature-resistant coating is 2.
Further, the thickness of the heavy-duty zinc-aluminum base coat is 8-30 um.
Further, the thickness of the fireproof high-temperature-resistant coating is 70-90 um.
The invention also provides a preparation method of the fireproof high-temperature-resistant heavy-duty coating.
A preparation method of a fireproof high-temperature-resistant heavy-duty anticorrosive coating comprises the following steps of preparing a heavy-duty anticorrosive zinc-aluminum primer coating liquid according to the weight ratio of 3:1:1:0.05 weighing a silicon-based binder, zinc powder, aluminum powder and an antirust penetrant, adding the weighed raw materials into a grinding machine step by step for grinding, controlling the temperature below 25 ℃, grinding for 4 hours, uniformly mixing, adding 10% of a diluent into the uniformly mixed coating liquid for continuous grinding for 2 hours, and then subpackaging through a 200-mesh filter screen; preparing fireproof high-temperature-resistant coating liquid, weighing a silicon-based binder, titanium dioxide and silicon carbide according to a weight ratio of 2:1, adding the weighed raw materials into a grinding machine step by step for grinding, controlling the temperature below 25 ℃, grinding for 2 hours to achieve uniform mixing, adding 5% of diluent into the uniformly mixed coating liquid, continuously grinding uniformly, grinding for 0.5 hour, and then subpackaging through a 200-mesh filter screen; secondly, spraying heavy-duty anti-corrosion zinc-aluminum base coating liquid on the surface of the workpiece to form a heavy-duty anti-corrosion zinc-aluminum base coating; thirdly, spraying the fireproof high-temperature-resistant coating liquid on the surface of the heavy-duty zinc-aluminum base coating to form a fireproof high-temperature-resistant coating
Further, the heavy-duty anti-corrosion zinc-aluminum base coating liquid has the following physical parameters: solid content 28-32%, specific gravity 1.2-1.3g/cm3, viscosity 10-100CPS, pH 11-12.5, VOC18L/max.
Further, the solid content is more than 25%, the viscosity is 20-120CPS, the PH value is 8-10, and the specific gravity is 1.2-1.4g/cm < 3 >.
And further, performing surface shot blasting or sand blasting rust removal and oil removal treatment on the anticorrosive workpiece before coating in the second step, wherein the thickness of the coating is 8-30 um, and drying for 36 hours at normal temperature.
And further, in the third step, before coating, the fireproof high-temperature-resistant coating liquid is uniformly stirred, is filtered by a stainless steel 200-mesh filter screen and is filled into a spraying tank, and the coating liquid is sprayed on the surface of the workpiece twice, wherein the thickness of the coating liquid is 40um, the total thickness is more than 70um, and the time interval between two times of spraying is more than 20 hours.
The invention has the advantages that:
(1) The aqueous environment is protected and no pollution is caused; the pure water paint is non-toxic and odorless, and does not pollute constructors, users or the nature.
(2) Long-acting heavy-duty anticorrosion protection; at a coating thickness of 120 microns, it is theorized that corrosion protection can be provided for more than 20 years.
(3) Acid rain resistance, instantaneous high temperature of more than 1600 ℃ and high temperature of more than 1200 ℃, incombustibility, no fire hazard and high safety factor.
(4) High hardness and high binding force; the ionic bond can be formed on the surface of steel, the tensile strength of the protective film is 1000cbs/in2 (500 kg/cm < 2 >), and the surface hardness reaches more than 8 h.
(5) The coating film is dried quickly and can be touched by fingers within two hours.
(6) The ventilation environment is poor, and the danger of gas explosion and organic solvent poisoning can be avoided.
(7) The comprehensive anticorrosion benefit is high, and the enterprise anticorrosion cost is reduced.
(8) The invention has simple coating process and low requirement on environmental humidity, and can be used in the southern humid environment.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
The coating of the invention comprises two steps: namely, the heavy-duty anti-corrosion zinc-aluminum primary coating and the fireproof high-temperature resistant surface coating.
1. Heavy-duty zinc-aluminum base coat:
1. weighing a silicon-based binder, zinc powder, aluminum powder and an antirust penetrant according to a certain proportion, and adding 3:1:1:0.05;
2. adding the weighed raw materials into a grinding machine step by step and times for grinding, controlling the temperature below 25 ℃, and grinding for 4 hours to achieve uniform mixing;
3. adding a diluent (10%) into the uniformly mixed coating liquid, and continuously grinding uniformly for 2 hours.
4. And subpackaging the prepared coating liquid through a filter screen (200 meshes).
Physical property parameters:
solid matter; 28 to 32 percent
Specific gravity: 1.2-1.3g/cm3
Viscosity: 10-100CPS
pH value: 11-12.5
VOC；１８l/max
A flash point; non-combustible
Diluent agent: special aqueous diluent
Shelf life: ventilating at room temperature for 12 months
Packaging: 25KG,250KG
The construction method comprises the following steps: can be applied by brushing, rolling, spraying
The product application is as follows: the oil tank, the steel construction, the valve, the factory building support, the rust-resistant primary coat of hull, electron steel equipment, machine bolts etc..
Table one is the comparison of indexes of heavy-duty zinc-aluminum base coat and conventional coating
(watch one)
2. Fireproof high-temperature-resistant surface coating:
1. weighing the silicon-based binder, the titanium dioxide and the silicon carbide according to a certain proportion, wherein the proportion is as follows: 2;
2. adding the weighed raw materials into a grinding machine step by step and times for grinding, controlling the temperature below 25 ℃, and grinding for 2 hours to achieve uniform mixing;
3. adding a diluent (5%) into the uniformly mixed coating liquid, and continuously grinding uniformly for 0.5 hour.
4. And subpackaging the prepared coating liquid through a filter screen (200 meshes).
Physical property parameters:
solid matter; over 25 percent
A major component; metal salt, silicon
Viscosity; 20-120CPS
The pH value; 8-10
Specific gravity; 1.2-1.4g/cm3
A flash point; non-combustible
A diluent; special aqueous diluent
Shelf life; 12 months at normal temperature
Packaging; 25KG,250 KG.
The second table is the comparison of each index of the fireproof high-temperature-resistant coating and the traditional coating
(watch two)
Coating of heavy-duty zinc-aluminum base coat:
1. performing surface shot blasting or sand blasting rust removal and oil removal treatment on the anticorrosive workpiece, wherein the treatment strength is finished according to the conventional treatment standard;
2. the surface of the workpiece after the antiseptic treatment is sprayed and brushed conventionally, and the thickness of the coating is 8-30 um;
3. drying the coating for 36 hours at normal temperature;
4. the corrosion-resistant salt spray test time of the small sample test piece is more than 1000 hours.
Coating of fireproof high-temperature-resistant top coat:
1. keeping the surface of the workpiece coated with the zinc-aluminum coating clean;
2. before coating, the fireproof high-temperature-resistant coating liquid is uniformly stirred, filtered by a stainless steel filter screen (200 meshes) and filled into a spraying tank;
3. and spraying the coating liquid on the surface of the workpiece twice, wherein the thickness of the coating liquid is 40 mu m in a single time, the total thickness is more than 70 mu m, and the time interval between the two times of spraying is more than 20 hours.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.
Claims (10)
1. The fireproof high-temperature-resistant heavy-duty anticorrosive coating is characterized in that: the coating comprises a heavy-duty anticorrosion zinc-aluminum base coat and a fireproof high-temperature-resistant coating, wherein the heavy-duty anticorrosion zinc-aluminum base coat is coated on the surface of a base layer, the fireproof high-temperature-resistant coating is coated on the surface of the heavy-duty anticorrosion zinc-aluminum base coat, the heavy-duty anticorrosion zinc-aluminum base coat comprises a silicon-based binder, zinc powder, aluminum powder and an antirust penetrant, and the fireproof high-temperature-resistant coating comprises a silicon-based binder, titanium dioxide and silicon carbide.
2. The fireproof high-temperature-resistant heavy-duty anticorrosive coating according to claim 1, characterized in that: the weight ratio of the silicon-based binder, the zinc powder, the aluminum powder and the antirust penetrant in the heavy-duty anticorrosive zinc-aluminum base coat is 3:1:1:0.05.
3. the fireproof high-temperature-resistant heavy-duty anticorrosive coating according to claim 2, characterized in that: the weight ratio of the silicon-based binder, the titanium dioxide and the silicon carbide in the fireproof high-temperature-resistant coating is 2.
4. The fireproof high-temperature-resistant heavy-duty anticorrosive coating according to claim 3, characterized in that: the thickness of the heavy-duty zinc-aluminum base coat is 8-30 um.
5. The fireproof high-temperature-resistant heavy-duty anticorrosive coating according to claim 4, characterized in that: the thickness of the fireproof high-temperature resistant coating is 70-90 um.
6. The preparation method of the fireproof high-temperature-resistant heavy-duty anticorrosive coating is characterized by comprising the following steps of preparing a heavy-duty anticorrosive zinc-aluminum primer coating liquid according to the weight ratio of 3:1:1:0.05 weighing a silicon-based binder, zinc powder, aluminum powder and an antirust penetrant, adding the weighed raw materials into a grinding machine step by step for grinding, controlling the temperature below 25 ℃, grinding for 4 hours, uniformly mixing, adding 10% of a diluent into the uniformly mixed coating liquid for continuous grinding for 2 hours, and then subpackaging through a 200-mesh filter screen; preparing fireproof high-temperature-resistant coating liquid, weighing a silicon-based binder, titanium dioxide and silicon carbide according to a weight ratio of 2:1, adding the weighed raw materials into a grinding machine step by step for grinding, controlling the temperature below 25 ℃, grinding for 2 hours to achieve uniform mixing, adding 5% of diluent into the uniformly mixed coating liquid, continuously grinding uniformly for 0.5 hour, and then subpackaging through a 200-mesh filter screen; secondly, spraying heavy-duty anti-corrosion zinc-aluminum base coating liquid on the surface of the workpiece to form a heavy-duty anti-corrosion zinc-aluminum base coating; and thirdly, spraying the fireproof high-temperature-resistant coating liquid on the surface of the heavy-duty anti-corrosion zinc-aluminum base coating to form the fireproof high-temperature-resistant coating.
7. The preparation method of the fireproof high-temperature-resistant heavy-duty anticorrosive coating according to claim 6, characterized in that the heavy-duty zinc-aluminum primer coating has the following physical parameters: solid content 28-32%, specific gravity 1.2-1.3g/cm3, viscosity 10-100CPS, pH 11-12.5, VOC18L/max.
8. The method for preparing a fireproof high-temperature-resistant heavy-duty coating as claimed in claim 7, wherein the solid content is more than 25%, the viscosity is 20-120cps, the ph is 8-10, and the specific gravity is 1.2-1.4g/cm3.
9. The preparation method of the fireproof high-temperature-resistant heavy-duty anticorrosive coating according to claim 6, characterized in that in the second step, before coating, the anticorrosive workpiece is subjected to surface shot blasting or sand blasting rust removal and oil removal treatment, the coating thickness is 8-30 um, and the coating is dried for 36 hours in a normal temperature environment.
10. The preparation method of the fireproof high-temperature-resistant heavy-duty anticorrosive coating according to claim 6, characterized in that in step three, before coating, the fireproof high-temperature-resistant coating liquid is uniformly stirred, filtered by a stainless steel 200-mesh filter screen and filled into a spraying tank, and the coating liquid is sprayed on the surface of the workpiece twice, wherein the thickness of the coating liquid is 40um on one hand, the total thickness is more than 70um, and the time interval between two spraying is more than 20 hours.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211533354.3A CN115785716A (en) | 2022-12-02 | 2022-12-02 | Fireproof high-temperature-resistant heavy-duty anticorrosive coating and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211533354.3A CN115785716A (en) | 2022-12-02 | 2022-12-02 | Fireproof high-temperature-resistant heavy-duty anticorrosive coating and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1172135A (en) * | 1996-05-20 | 1998-02-04 | 金属涂层国际公司 | Water-reducible coating composition for providing corrosion protection |
| JP2004283699A (en) * | 2003-03-20 | 2004-10-14 | Osaka Gas Co Ltd | Member for gas using facility applied with high durable coating |
| US20120237778A1 (en) * | 2010-09-15 | 2012-09-20 | E. I. Du Pont De Nemours And Company | Aqueous composition for corrosion resistant fastener coatings |
| CN107964351A (en) * | 2017-09-28 | 2018-04-27 | 永星化工(上海)有限公司 | A kind of water-based composite zinc-aluminum anticorrosive paint |
| CN112625470A (en) * | 2019-09-24 | 2021-04-09 | 舾蒙新材料科技(上海)有限公司 | Normal-temperature curing inorganic coating and preparation method thereof |
| CN112898852A (en) * | 2021-03-19 | 2021-06-04 | 深圳市海多嘉新建材有限公司 | Water-based anti-rust coating |
| CN113831766A (en) * | 2021-09-18 | 2021-12-24 | 吉林莱德化学科技有限公司 | Water-based zinc-aluminum coating, primer coating, preparation method of primer coating and composite coating |
-
2022
- 2022-12-02 CN CN202211533354.3A patent/CN115785716A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1172135A (en) * | 1996-05-20 | 1998-02-04 | 金属涂层国际公司 | Water-reducible coating composition for providing corrosion protection |
| JP2004283699A (en) * | 2003-03-20 | 2004-10-14 | Osaka Gas Co Ltd | Member for gas using facility applied with high durable coating |
| US20120237778A1 (en) * | 2010-09-15 | 2012-09-20 | E. I. Du Pont De Nemours And Company | Aqueous composition for corrosion resistant fastener coatings |
| CN107964351A (en) * | 2017-09-28 | 2018-04-27 | 永星化工(上海)有限公司 | A kind of water-based composite zinc-aluminum anticorrosive paint |
| CN112625470A (en) * | 2019-09-24 | 2021-04-09 | 舾蒙新材料科技(上海)有限公司 | Normal-temperature curing inorganic coating and preparation method thereof |
| CN112898852A (en) * | 2021-03-19 | 2021-06-04 | 深圳市海多嘉新建材有限公司 | Water-based anti-rust coating |
| CN113831766A (en) * | 2021-09-18 | 2021-12-24 | 吉林莱德化学科技有限公司 | Water-based zinc-aluminum coating, primer coating, preparation method of primer coating and composite coating |
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