CN102485806A - Water-based inorganic zinc shop primer, its preparation method and its application - Google Patents

Water-based inorganic zinc shop primer, its preparation method and its application Download PDF

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Publication number
CN102485806A
CN102485806A CN2010105741793A CN201010574179A CN102485806A CN 102485806 A CN102485806 A CN 102485806A CN 2010105741793 A CN2010105741793 A CN 2010105741793A CN 201010574179 A CN201010574179 A CN 201010574179A CN 102485806 A CN102485806 A CN 102485806A
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verivate
shop primer
kilograms
zinc
water
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CN102485806B (en
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汪国庆
汪培庆
黄永清
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Shanghai Xuanyang Chemical Material Technology Coltd
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Abstract

The invention provides a water-based inorganic zinc shop primer, which comprises a base-material and a curing agent, wherein the base-material comprises zinc, a filling material, pigment, rare earth oxide, a heterocyclic organic compound, a surfactant, water, an anti-settling agent and an antifoaming agent; the curing agent comprises an inorganic high-molecular film forming substrate, anacrylic acid monomer, styrene, methyl acrylate, ethyl acrylate, a dispersant, water, an antifoaming agent and a surfactant. The shop primer is used for ship or large-scale steel structure construction, has excellent anticorrosion performance, and is suitable for high pressure airless spraying to satisfy the production requirements of shop primer streamline, and satisfy the requirements of welding, cutting and the like. and can be used as a priming paint for temporary protection in the process for constructing large-scale heavy steel structures in ship construction factory or large-scale steel structure factory, the protection duration is 3-12 months.

Description

A kind of aqueous inorganic zinc shop primer and preparation thereof and application
Technical field
The present invention relates to a kind of shop primer and preparation thereof and application, especially relate to a kind of aqueous inorganic zinc shop primer and preparation thereof and application.
Background technology
Shop primer; Be referred to as steel pre-treatment priming paint and maintenance priming paint again; Be meant the first road priming paint that steel plate sprays after certain rank through inject process; It mainly acts on is that the protection steel plate receives atomospheric corrosion less when making (containing welding, cutting, firer's correction etc.), in boats and ships and large-scale iron structure etc. are built, uses very extensive.In shipbuilding industry; The production plant of being furnished with large-scale pre-treatment and painting workshop priming paint generally speaking; Steel plate after the buying directly arrives the workshop; Adopt automatic assembly line to carry out shot blasting and adopt automatic high pressure airless sprayer painting workshop priming paint again to certain rank, standard GB/T6747 has carried out requirement to the basic fundamental parameter of shop primer.
Shop primer is different from heavy protective system priming paint, and it is a kind of priming paint of interim protective, has certain performance that prevents steel plate corrosion, and maintenance prompt was generally 3~12 months; Therefore, it is thinner that the thickness of shop primer requires, and its thickness is 15~20 μ m, and can adopt airless spraying and filmed uniformly.
At present; Mostly the zinc shop primer that contains that adopts is solvent based coating; General toluene, YLENE, Virahol, propyl carbinol, Ucar 35, the terepthaloyl moietie etc. of adopting are as solvent, and these organic solvents are scent of not only, and toxicity is bigger; Harm production and workmen's health also pollutes the environment simultaneously.A kind of high-temperature resistant workshop primer as patent 200810040236.2 provides wherein just contains organic solvents such as Virahol, butanols, YLENE.Patent 200610103691.3 disclosed environment-friendly type inorganic zinc silicate workplace primers; And the high temperature resistant inorganic primer for zinc silicate shop of patent 200810040237.7 disclosed not containing benezene solvents; Though avoided the use of benzene, wherein still contained other volatile organic solvents.Since last century the mid-80, the countries in the world legislations of environmental protection makes water-based anticorrosive paint become this hot research fields to the restriction increasingly stringent of volatile organic solvent content in the coating.
Contain a certain amount of zinc powder in the rich zinc shop primer, and the proportion of zinc is 7.14, is easy to generate deposition; Simultaneously, because zinc powder character is more active, in the aqueous solution, react easily.Therefore, the component that in depositing process, contains zinc powder can not contact with water, is the technological difficulties that waterborne zinc-rich primer faces.Present existing aqueous inorganic zinc silicate priming paint normally separates independent packaging with liquid base-material and zinc powder pigment, mixes during use and constantly stirring of needs in whole construction course again.This aqueous inorganic zinc silicate coating viscosity is lower, is not suitable for automatic high pressure Airless spraying, thereby causes that stifled rifle influences operating efficiency during spraying easily.In addition, the particle diameter of the Zn powder that wherein adopts is about 45 μ m, and the coat-thickness that spraying forms all more than 100 μ m, can not satisfy the requirement of shop primer film thickness.
Summary of the invention
The objective of the invention is to overcome above deficiency of the prior art, a kind of aqueous inorganic zinc shop primer is provided.
For achieving the above object, the technical scheme that the present invention adopts is: a kind of aqueous inorganic zinc shop primer, it is characterized in that, and comprise base-material and solidifying agent; Wherein,
Said base-material comprises the component of following weight part:
Zinc: 20-60 part,
Filler: 10-50 part,
Pigment: 3-20 part,
Rare earth oxide: 0-4 part,
Heterocyclic organic compounds: 0.45-3 part,
Tensio-active agent: 0.1-1 part,
Water: 15-40 part,
Anti-settling agent: 0.2-2 part,
Skimmer: 0.07-0.7 part;
Said solidifying agent comprises the component of following weight part:
The inorganic polymer film forming matter: 10-30 part,
Acrylic Acid Monomer: 0-8 part,
Vinylbenzene: 2-8 part,
Methyl acrylate: 0-4 part,
Ethyl propenoate: 0-4 part,
Dispersion agent: 0.5-2 part,
Water: 14-35 part,
Skimmer: 0-0.05 part,
Tensio-active agent: 0-0.15 part.
Preferably, a kind of aqueous inorganic zinc shop primer provided by the invention is characterized in that, comprises base-material and solidifying agent; Wherein, said base-material comprises the component of following weight part:
Zinc: 20-50 part,
Filler: 10-15 part,
Pigment: 5-8 part,
Rare earth oxide: 1-2 part,
Heterocyclic organic compounds: 1-1.5 part,
Tensio-active agent: 0.5-0.8 part,
Water: 20-25 part,
Anti-settling agent: 1-1.5 part,
Skimmer: 0.4-0.7 part;
Said solidifying agent comprises the component of following weight part:
The inorganic polymer film forming matter: 10-15 part,
Acrylic Acid Monomer: 2-4 part,
Vinylbenzene: 2-4 part,
Methyl acrylate: 1-2 part,
Ethyl propenoate: 1-2 part,
Dispersion agent: 0.8-1.2 part,
Water: 28-32 part,
Skimmer: 0-0.05 part,
Tensio-active agent: 0-0.15 part.
Preferable, said zinc is spherical zinc powder or zinc flake, and the granularity of spherical zinc powder is the 2-5 micron, and the radius-thickness ratio of zinc flake is 5-10: 1, the zinc flake major diameter is of a size of the 10-20 micron.
Preferable, said filler is selected from one or more the mixing in kaolin, Feldspar Powder, ground barium sulfate, process white, Calucium Silicate powder, Magnesium Silicate q-agent, water-ground limestone (coarse whiting), wilkinite or the silicon-dioxide.
Preferable, said pigment is selected from one or more the mixing in zn phosphate, zinc oxide, red iron oxide, white titanium pigment, ferrophosphorus powder or the titanium-iron powder.
Preferable, said rare earth oxide is Indium sesquioxide, bismuth oxide or their mixture.
Preferable, said heterocyclic organic compounds is selected from thiodiphenylamine and verivate, thiophene and verivate thereof, pyrroles and verivate thereof, pyrazoles and verivate thereof, imidazoles and verivate thereof, thiazole and verivate thereof, acridine and verivate thereof, quinoline and verivate thereof, tetrahydroglyoxaline and verivate thereof or triphenylphosphine and verivate thereof.These heterocyclic organic compounds can be well and metal zinc (or zinc metal sheet) combine, be adsorbed on the metallic zinc surface, form the capsule protective membrane.Preferably, said heterocyclic organic compounds is selected from thiazole and verivate, tetrahydroglyoxaline and verivate thereof, thiophene and verivate thereof.Preferred, said heterocyclic organic compounds is selected from tetrahydroglyoxaline quaternary amine, 3 methyl thiophene (MBTS), 2,5-dimercapto-1,3,4-thiadiazoles (DMTD).
Tensio-active agent in the said base-material can be cats product, AS, nonionogenic tenside.These tensio-active agents all can finely be adsorbed on the capsule protective membrane of heterocyclic organic compounds formation, further improve zinc metal and media isolated are opened, and form good sealing coat.
Tensio-active agent in the said solidifying agent is negatively charged ion or nonionogenic tenside.
Preferable, said inorganic polymer filmogen is one or both the mixing in inorganic silicate, the inorganic phosphate.
Preferably, said inorganic silicate is selected from one or more the mixing in potassium silicate, water glass, lithium silicate or the ammonium silicate; Said inorganic phosphate is one or both the mixing in polymer phosphate aluminium, the potassium pyrophosphate.
Preferable, said anti-settling agent is a modified montmorillonoid.
Preferable, said dispersion agent is isomery alcohol and ethylene oxide condensate.
Preferable, said skimmer is an organosilicon product.
Above-mentioned aqueous inorganic zinc shop primer provided by the present invention, its base-material and solidifying agent be storage separately, mixes during use again.Wherein: base-material, is avoided contacting with medium to guarantee zinc powder as the wrap of zinc inhibition with heterocyclic organic compounds and tensio-active agent, makes that zinc powder is stable in aqueous medium to be preserved and be uniformly dispersed; Solidifying agent is a staple with the inorganic polymer filmogen, when base-material mixes with solidifying agent, can the protective membrane on zinc powder surface be opened.
The present invention also further discloses the preparation method of above-mentioned aqueous inorganic zinc shop primer, it is characterized in that:
The preparation method of said base-material comprises the steps: by proportioning, with after water, filler, rare earth oxide, tensio-active agent and heterocyclic organic compounds mixing and being uniformly dispersed, adds other components and stirs earlier;
The preparation method of said solidifying agent comprises the steps: by proportioning, earlier Acrylic Acid Monomer, vinylbenzene, methyl acrylate and ethyl propenoate is mixed, and is heated to 75-115 ℃, reacts 2-8 hour; Add dispersion agent, skimmer, tensio-active agent and water then and mix, add the inorganic polymer film forming matter behind the cool to room temperature, stirring obtains solidifying agent.
Among the present invention, the weight ratio of said base-material and solidifying agent is 1~2: 1.
The present invention is with stable coat and finely dispersed zinc slurry is a base-material in aqueous medium, is made into the aqueous inorganic zinc shop primer of two components with the solidifying agent that contains inorganic filming substance.This coating is used for the shop primer that boats and ships or large-scale steel structure are built, have excellent antiseptic property, applicable to airless spraying to satisfy the production requirement of shop primer flow line, also can satisfy requirements such as welding, cutting simultaneously.Aqueous inorganic zinc shop primer provided by the invention can be widely used as the priming paint of the interim protection of large-scale heavy steelwork in manufacture process such as shipbuilding n. factory or large-scale iron structure factory, and the protection time limit is 3-12 month.
Embodiment
Further set forth the present invention below in conjunction with embodiment.Should be understood that these embodiment only are used to explain the present invention, and unrestricted scope of the present invention.
13 months anticorrosion shop primers of embodiment
The prescription of base-material is following:
124 kilograms of spherical zinc powders (granularity is the 2-5 micron)
16 kilograms of zinc flakes (major diameter is the 15-20 micron)
5 kilograms of silicon-dioxide
The permanent white 120 kg
50 kilograms of white titanium pigments
200 kilograms in water
1 kilogram of indium oxide
3 kilograms of imidazoline quaternary ammonium salts
1 kilogram of surfactant R HODAPON BOS (Rhodia)
1.2 kilograms of anti-settling agent ST-1 (spinal cord peak, Xinyang, Henan gloomy wilkinite factory)
0.5 kilogram of skimmer BYK-017 (Bi Ke company)
The prescription of solidifying agent is following:
Lithium silicate: 600 kilograms
Acrylic Acid Monomer: 10 kilograms
Vinylbenzene: 40 kilograms
Methyl acrylate: 20 kilograms
Ethyl propenoate: 20 kilograms
1 kilogram of skimmer BYK-017 (Bi Ke company)
10 kilograms of dispersion agent E-1302 (Hai'an, Jiangsu petrochemical industry ltd)
310 kilograms in water
The preparation of base-material: 200 kilograms of pure water, 5 kilograms of silica, 1 kilogram of indium oxide, 1 kilogram in surfactant, imidazoline quaternary ammonium salt are added the paint cylinder for 3 kilograms, 1200 rev/mins at a high speed, disperseed 10 minutes.The back remaining powder of adding stirs and obtains base-material.This base-material length under room temperature can be placed 6 months, and back, Kaifeng outward appearance is good, and is mobile excellent, no denaturalization phenomenon generation.
The preparation of solidifying agent: with 10 kilograms of Acrylic Acid Monomers, 40 kilograms of vinylbenzene, 20 kilograms of methyl acrylates, 20 kilograms of adding reaction kettles of ethyl propenoate; Be heated to 93 ± 5 degree; Reacted 6 hours, and added tensio-active agent, skimmer, add water; Add lithium silicate behind the cool to room temperature, obtain solidifying agent.
The shop primer coating, and is prepared by weight being 2 to 1 to mix by base-material and solidifying agent.
2 six months anticorrosion water-soluble shop primers of embodiment
The prescription of base-material is following:
12 kilograms of wilkinites
456 kilograms of spherical zinc powders (granularity is the 2-5 micron)
144 kilograms of zinc flakes (major diameter 15-20 micron)
280 kilograms in permanent white
115 kilograms of Magnesium Silicate q-agents
124 kilograms in ferrophosphorus powder
400 kilograms in water
1.5 kilograms of indium oxides
4.5 kilograms of MBTS (3 thiotolene)
1 kilogram of surfactant R HODAPON PEH (Rhodia)
2 kilograms of anti-settling agent ST-3 (spinal cord peak, Xinyang, Henan gloomy wilkinite factory)
0.7 kilogram of skimmer BYK-019 (Bi Ke company)
The prescription of solidifying agent is following:
600 kilograms of water glass
40 kilograms of vinylbenzene
20 kilograms of methyl acrylates
20 kilograms of ethyl propenoates
280 kilograms in water
10 kilograms of dispersion agent E-1308 (Hai'an, Jiangsu petrochemical industry ltd)
1 kilogram of skimmer BYK-019 (Bi Ke company)
The preparation of base-material: 400 kilograms of pure water, 12 kilograms of bentonites, 1.5 kilograms of indium oxides, 1 kilogram in surfactant, MBTS4.5 kilogram are added the paint cylinder, 1200 rev/mins at a high speed, disperseed 10 minutes.The back remaining powder of adding stirs and obtains base-material.This base-material length under room temperature can be placed 6 months, and back, Kaifeng outward appearance is good, and is mobile excellent, no denaturalization phenomenon generation.
The preparation of solidifying agent: with 40 kilograms of vinylbenzene, 20 kilograms of methyl acrylates, 20 kilograms of adding reaction kettles of ethyl propenoate, be heated to 88-98 ℃, reacted 7 hours, add dispersion agent, skimmer, add water, add water glass behind the cool to room temperature, obtain solidifying agent.
The shop primer coating, and is prepared by weight being 1.8 to 1 to mix by base-material and solidifying agent.
3 12 months anticorrosion water-soluble shop primers of embodiment
The prescription of base-material is following:
10 kilograms of wilkinites
5 kilograms of silica 1s
540 kilograms of spherical zinc powders (granularity is the 2-5 micron)
40 kilograms of zinc flakes (major diameter 15-20 micron)
50 kilograms in ferrophosphorus powder
170 kilograms in water
2 kilograms of bismuth oxides
5 kilograms of DMTD
207 kilograms of coarse whitings
1 kilogram of surfactant R HODAPON BOS (Rhodia)
2.5 kilograms of anti-settling agent ST-4 (spinal cord peak, Xinyang, Henan gloomy wilkinite factory)
0.8 kilogram of skimmer BYK-019 (Bi Ke company)
The prescription of solidifying agent is following:
600 kilograms of potassium silicates
Acrylic Acid Monomer: 20 kilograms
40 kilograms of vinylbenzene
20 kilograms of methyl acrylates
20 kilograms of ethyl propenoates
310 kilograms in water
10 kilograms of dispersion agent E-1306 (Hai'an, Jiangsu petrochemical industry ltd)
1 kilogram of skimmer BYK-019 (Bi Ke company)
3 kilograms of tensio-active agent SOKALAN PA25CL
The preparation of base-material:, 1200 rev/mins at a high speed, disperseed 10 minutes with 170 kilograms of pure water, 10 kilograms of wilkinites, 5 kilograms of silica 1s, 2 kilograms of bismuth oxides, 1 kilogram in tensio-active agent, DMTD5 kilogram paint cylinder.The back remaining powder of adding stirs and obtains base-material.This base-material length under room temperature can be placed 6 months, and back, Kaifeng outward appearance is good, and is mobile excellent, no denaturalization phenomenon generation.
The preparation of solidifying agent: with 20 kilograms of Acrylic Acid Monomers, 40 kilograms of vinylbenzene, 20 kilograms of methyl acrylates, 20 kilograms of adding reaction kettles of ethyl propenoate, be heated to 95 degree, reacted 5 hours; Add tensio-active agent, skimmer; Add water, add potassium silicate behind the cool to room temperature, obtain solidifying agent.
The shop primer coating, and is prepared by weight being 2 to 1 to mix by base-material and solidifying agent.
Embodiment 4
The prescription of base-material is following:
Spherical zinc powder (granularity is the 2-5 micron) 120 kg
90 kilograms of Calucium Silicate powder
10 kilograms of Feldspar Powders
18 kilograms of titanium-iron powders
90 kilograms in water
18 kilograms of imidazoline quaternary ammonium salts
6 kilograms of surfactant R HODAPON BOS (Rhodia)
6 kilograms of anti-settling agent ST-1 (spinal cord peak, Xinyang, Henan gloomy wilkinite factory)
1.8 kilograms of skimmer BYK-017 (Bi Ke company)
The prescription of solidifying agent is following:
Aluminium triphosphate: 300 kilograms
Acrylic Acid Monomer: 80 kilograms
Vinylbenzene: 40 kilograms
Ethyl propenoate: 40 kilograms
20 kilograms of dispersion agent E-1302 (Hai'an, Jiangsu petrochemical industry ltd)
350 kilograms in water
1.5 kilograms of tensio-active agent SOKALAN PA25CL
The preparation method is with embodiment 1.The base-material that makes length under room temperature can be placed 6 months, and back, Kaifeng outward appearance is good, and is mobile excellent, no denaturalization phenomenon generation.
The shop primer coating, and is prepared by weight being 1 to 1 to mix by base-material and solidifying agent.
Embodiment 5
The prescription of base-material is following:
30 kilograms in kaolin soil
70 kilograms of silicon-dioxide
350 kilograms of coarse whitings
540 kilograms of spherical zinc powders (granularity is the 2-5 micron)
60 kilograms of zinc flakes (major diameter 15-20 micron)
180 kilograms of zn phosphates
360 kilograms in water
36 kilograms of bismuth oxides
9 kilograms of DMTD
2 kilograms of surfactant R HODAPON BOS (Rhodia)
18 kilograms of anti-settling agent ST-4 (spinal cord peak, Xinyang, Henan gloomy wilkinite factory)
6 kilograms of skimmer BYK-019 (Bi Ke company)
The prescription of solidifying agent is following:
600 kilograms of potassium pyrophosphates
Acrylic Acid Monomer: 120 kg
480 kilograms of vinylbenzene
240 kilograms of methyl acrylates
900 kilograms in water
30 kilograms of dispersion agent E-1306 (Hai'an, Jiangsu petrochemical industry ltd)
3 kilograms of skimmer BYK-019 (Bi Ke company)
9 kilograms of tensio-active agent SOKALAN PA25CL
The preparation method is with embodiment 1.The base-material that makes length under room temperature can be placed 6 months, and back, Kaifeng outward appearance is good, and is mobile excellent, no denaturalization phenomenon generation.
The shop primer coating, and is prepared by weight being 1 to 1 to mix by base-material and solidifying agent.
The gained shop primer is pressed GB6747-2008 and HBC12-2004 standard testing in the foregoing description, and each item performance data is as shown in the table:
Figure BDA0000036309630000101
Figure BDA0000036309630000111

Claims (11)

1. an aqueous inorganic zinc shop primer is characterized in that, comprises base-material and solidifying agent; Wherein,
Said base-material comprises the component of following weight part:
Zinc: 20-60 part,
Filler: 10-50 part,
Pigment: 3-20 part,
Rare earth oxide: 0-4 part,
Heterocyclic organic compounds: 0.45-3 part,
Tensio-active agent: 0.1-1 part,
Water: 15-40 part,
Anti-settling agent: 0.2-2 part,
Skimmer: 0.07-0.7 part;
Said solidifying agent comprises the component of following weight part:
The inorganic polymer film forming matter: 10-30 part,
Acrylic Acid Monomer: 0-8 part,
Vinylbenzene: 2-8 part,
Methyl acrylate: 0-4 part,
Ethyl propenoate: 0-4 part,
Dispersion agent: 0.5-2 part,
Water: 14-35 part,
Skimmer: 0-0.05 part,
Tensio-active agent: 0-0.15 part.
2. aqueous inorganic zinc shop primer as claimed in claim 1 is characterized in that said zinc is spherical zinc powder or zinc flake.
3. aqueous inorganic zinc shop primer as claimed in claim 1; It is characterized in that said filler is selected from one or more the mixing in kaolin, Feldspar Powder, ground barium sulfate, process white, Calucium Silicate powder, Magnesium Silicate q-agent, water-ground limestone, wilkinite or the silicon-dioxide.
4. aqueous inorganic zinc shop primer as claimed in claim 1 is characterized in that, said pigment is selected from one or more the mixing in zn phosphate, zinc oxide, red iron oxide, white titanium pigment, ferrophosphorus powder or the titanium-iron powder.
5. aqueous inorganic zinc shop primer as claimed in claim 1 is characterized in that, said rare earth oxide is Indium sesquioxide, bismuth oxide or their mixture.
6. aqueous inorganic zinc shop primer as claimed in claim 1; It is characterized in that said heterocyclic organic compounds is selected from thiodiphenylamine and verivate, thiophene and verivate thereof, pyrroles and verivate thereof, pyrazoles and verivate thereof, imidazoles and verivate thereof, thiazole and verivate thereof, acridine and verivate thereof, quinoline and verivate thereof, tetrahydroglyoxaline and verivate thereof or triphenylphosphine and verivate thereof.
7. aqueous inorganic zinc shop primer as claimed in claim 6 is characterized in that said heterocyclic organic compounds is selected from thiazole and verivate, tetrahydroglyoxaline and verivate thereof, thiophene and verivate thereof.
8. like arbitrary described aqueous inorganic zinc shop primer among the claim 1-7, it is characterized in that said inorganic polymer filmogen is one or both the mixing in inorganic silicate, the inorganic phosphate.
9. aqueous inorganic zinc shop primer as claimed in claim 8 is characterized in that, said inorganic silicate is selected from one or more the mixing in potassium silicate, water glass, lithium silicate or the ammonium silicate; Said inorganic phosphate is one or both the mixing in polymer phosphate aluminium, the potassium pyrophosphate.
10. like arbitrary described aqueous inorganic zinc shop primer preparation method among the claim 1-9, it is characterized in that:
The preparation method of said base-material comprises the steps: by proportioning, with after water, filler, rare earth oxide, tensio-active agent and heterocyclic organic compounds mixing and being uniformly dispersed, adds other components again and stirs earlier;
The preparation method of said solidifying agent comprises the steps: by proportioning, earlier Acrylic Acid Monomer, vinylbenzene, methyl acrylate and ethyl propenoate is mixed, and is heated to 75-115 ℃, reacts 2-8 hour; Add dispersion agent, skimmer, tensio-active agent and water then and mix, add the inorganic polymer film forming matter behind the cool to room temperature, stirring obtains solidifying agent.
11. be used for the interim protection of heavy steelwork manufacture process like arbitrary described aqueous inorganic zinc shop primer among the claim 1-9.
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