CN102294869A - Epoxy powder insulating anticorrosive paint - Google Patents
Epoxy powder insulating anticorrosive paint Download PDFInfo
- Publication number
- CN102294869A CN102294869A CN2011101608665A CN201110160866A CN102294869A CN 102294869 A CN102294869 A CN 102294869A CN 2011101608665 A CN2011101608665 A CN 2011101608665A CN 201110160866 A CN201110160866 A CN 201110160866A CN 102294869 A CN102294869 A CN 102294869A
- Authority
- CN
- China
- Prior art keywords
- epoxy resin
- agent
- paint
- subbing
- curing agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003973 paint Substances 0.000 title claims abstract description 21
- 239000000843 powder Substances 0.000 title claims abstract description 18
- 239000004593 Epoxy Substances 0.000 title claims abstract description 13
- 239000011248 coating agent Substances 0.000 claims abstract description 26
- 238000000576 coating method Methods 0.000 claims abstract description 26
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 24
- 239000003822 epoxy resin Substances 0.000 claims abstract description 20
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 20
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 14
- 238000009413 insulation Methods 0.000 claims abstract description 12
- 238000005260 corrosion Methods 0.000 claims abstract description 10
- 230000007797 corrosion Effects 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 5
- 239000000945 filler Substances 0.000 claims description 12
- ZRALSGWEFCBTJO-UHFFFAOYSA-N Guanidine Chemical compound NC(N)=N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 claims description 8
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 8
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 claims description 8
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical compound NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 claims description 8
- LEQAOMBKQFMDFZ-UHFFFAOYSA-N glyoxal Chemical group O=CC=O LEQAOMBKQFMDFZ-UHFFFAOYSA-N 0.000 claims description 8
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims description 7
- 239000013530 defoamer Substances 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 7
- 239000011347 resin Substances 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000002987 primer (paints) Substances 0.000 claims description 5
- CHJJGSNFBQVOTG-UHFFFAOYSA-N N-methyl-guanidine Natural products CNC(N)=N CHJJGSNFBQVOTG-UHFFFAOYSA-N 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 4
- 150000001409 amidines Chemical class 0.000 claims description 4
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims description 4
- SWSQBOPZIKWTGO-UHFFFAOYSA-N dimethylaminoamidine Natural products CN(C)C(N)=N SWSQBOPZIKWTGO-UHFFFAOYSA-N 0.000 claims description 4
- 150000002148 esters Chemical class 0.000 claims description 4
- 229940015043 glyoxal Drugs 0.000 claims description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 4
- -1 phenol aldehyde Chemical class 0.000 claims description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 4
- 125000005498 phthalate group Chemical group 0.000 claims description 4
- 229920000120 polyethyl acrylate Polymers 0.000 claims description 4
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 4
- JIVZKJJQOZQXQB-UHFFFAOYSA-N tolazoline Chemical compound C=1C=CC=CC=1CC1=NCCN1 JIVZKJJQOZQXQB-UHFFFAOYSA-N 0.000 claims description 4
- 150000003672 ureas Chemical class 0.000 claims description 4
- 229910002012 Aerosil® Inorganic materials 0.000 claims description 2
- 239000002518 antifoaming agent Substances 0.000 claims description 2
- 239000010445 mica Substances 0.000 claims description 2
- 229910052618 mica group Inorganic materials 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 3
- 238000002156 mixing Methods 0.000 abstract description 3
- 229920001187 thermosetting polymer Polymers 0.000 abstract description 2
- 230000037452 priming Effects 0.000 abstract 4
- 238000011049 filling Methods 0.000 abstract 2
- 238000002955 isolation Methods 0.000 abstract 2
- 238000001125 extrusion Methods 0.000 abstract 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract 1
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000010292 electrical insulation Methods 0.000 description 3
- 229930185605 Bisphenol Natural products 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007590 electrostatic spraying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Landscapes
- Paints Or Removers (AREA)
Abstract
The invention belongs to a thermosetting epoxy powder insulation anticorrosive paint, comprising a priming paint and a topping paint which together form a electrical isolating anticorrosive coating, the priming paint comprises epoxy resin, curing agent and auxiliary agent, the topping paint comprises epoxy resin, curing agent, filling material and other auxiliary agents, and the priming paint and the topping paint are prepared into powder products with melt extrusion mixing method. According to the invention, the priming paint contains no or little filling material, so that the adhesion force of the formed base coating is not influenced; and the topping paint performs main functions of electrical isolation, corrosion resistance and the like, so that the paint disclosed in the invention has strong adhesion force and good electrical isolation performance, has the functions of corrosion resistance, rust resistance, mildew resistance, heat resistance, wear resistance and the like, and has the advantages of low cost.
Description
Technical field
The invention belongs to the powdery paints technical field, be specifically related to heat curing-type epoxy powder insulating corrosion coating.
Technical background
Specific functions such as applying coating is at object surface, forms to adhere to firmly, have certain intensity, continuous coating, coated object played protection, decoration effect, or make it have insulation, antirust, mildew-resistant, heat-resisting, and is wear-resisting.The patent No. is 200410014489.4 patent of invention " electromagnetic wire insulating powder coating ", discloses a kind of insulating powder coating that is used for electromagnetic wire electrostatic spraying technology.This insulating powder coating film or the property of coating is an electrical insulation capability.This powdery paints is made up of resin, curing agent and auxiliary material, and wherein higher resin and the hardener dose of price accounts for 98%, and the lower amount of filler of price only accounts for 1～2%.If increase substantially amount of filler, bring up to such as amount of filler and to account for 20～40%, then can significantly reduce the consumption of resin and curing agent, reduce the manufacturing cost of coating.But, increase substantially the content of filler in the coating, may cause the reduction of paint adhesion.If the coating separated into two parts, a part is a subbing, does not contain or contains filler less, is used to be coated in object surface.Because of it does not contain or contain less filler, formed primer coating adhesive force is unaffected.Another part is an investment precoat, is coated in the primer coating surface, and the surface layer coating of formation is born main electric insulation, function such as anticorrosive.So both can reduce the coating cost, guarantee again that adhesive force did not reduce, also guarantee its excellent electric insulation, function such as anticorrosive.The present invention just relates to this heat curing-type epoxy powder insulating corrosion coating of being made up of subbing and investment precoat.
Summary of the invention
The invention provides that a kind of strong adhesion, electrical insulation capability are good, anticorrosion, heat curing-type epoxy powder insulating corrosion coating that cost is low.
This epoxy powder insulating corrosion coating comprises subbing and investment precoat, subbing is coated on needs electric insulation and etch-proof object to ask clean surface, investment precoat is coated on by the formed primer coating of subbing surface, forms the etch-proof coating of electric insulation jointly.
Subbing is made up of epoxy resin, curing agent and auxiliary agent, and its percentage by weight is 49～85: 5～49: 2～10.Epoxy resin can be bis-phenol, A type epoxy resin or phenol aldehyde modified epoxy resin.Curing agent can be phenolic hydroxyl group resin, dicyandiamide, replacement dicyandiamide or dicarboxyl acid dihydrazide.Auxiliary agent is made up of flexibilizer, levelling agent, defoamer and promoter, and its percentage by weight is 40～70: 10～20: 10～20: 10～20.Wherein, flexibilizer can be phthalate or epoxy ester series; Levelling agent can be polyethyl acrylate or butyl acrylate; Defoamer can be common defoamer ZS-601 or high effective antifoaming agent ZS-603; Promoter can be glyoxal ethyline quinoline, 2-benzylimidazoline, ring amidine, croak pyridine, guanidine or urea derivative.
Investment precoat is made up of epoxy resin, curing agent, filler and other auxiliary agents, and its percentage by weight is 25～44: 25～44: 10～40: 2～10.Epoxy resin can be bisphenol A type epoxy resin or phenol aldehyde modified epoxy resin.Curing agent can be phenolic hydroxyl group resin, dicyandiamide, replacement dicyandiamide or dicarboxyl acid dihydrazide.Filler can be a precipitation
Two Silica, aerosil or mica powder.Other auxiliary agents are made up of flexibilizer, levelling agent and promoter, and its percentage by weight is 50～70: 15～25: 15～25.Flexibilizer can be phthalate or epoxy ester series; Levelling agent can be polyethyl acrylate or butyl acrylate; Promoter can be glyoxal ethyline quinoline, 2-benzylimidazoline, ring amidine, croak pyridine, guanidine or urea derivative.
Subbing and investment precoat all adopt and melt extrude mixing method and make powder product.Adopt the method that applies the heat curing-type epoxy powder electric insulation anticorrosive paint of forming by subbing and investment precoat that conducting copper is carried out electric insulation and preservative treatment.
Insulating corrosion coating coating of the present invention is because separated into two parts, subbing does not contain or contains less filler, formed primer coating adhesive force is unaffected, investment precoat is born main electric insulation, function such as anticorrosive, thereby paint adhesion of the present invention is strong, electrical insulation capability is good, have anticorrosion, antirust, mildew-resistant, heat-resisting, function such as wear-resisting, and have the low characteristics of cost.
Embodiment
Subbing of the present invention and investment precoat all adopt and melt extrude mixing method and make powder product, meet HG/T2006-2006 " thermosetting powder coating " standard-required.
Its subbing and investment precoat formulation Example are as follows:
The subbing prescription:
The investment precoat prescription:
Claims (8)
1. an epoxy powder insulating corrosion coating is characterized in that: be made up of subbing and investment precoat, form the etch-proof coating of electric insulation jointly.
2. according to the described anticorrosive paint of claim 1, it is characterized in that: described subbing is made up of epoxy resin, curing agent and auxiliary agent; Epoxy resin can be bisphenol A type epoxy resin or phenol aldehyde modified epoxy resin; Curing agent can be phenolic hydroxyl group resin, dicyandiamide, replacement dicyandiamide or dicarboxyl acid dihydrazide; Auxiliary agent is made up of flexibilizer, levelling agent, defoamer and promoter, and wherein: flexibilizer can be phthalate or epoxy ester series; Levelling agent can be polyethyl acrylate or butyl acrylate; Defoamer can be common defoamer ZS-601 or high effective antifoaming agent ZS-603; Promoter can be glyoxal ethyline quinoline, 2-benzylimidazoline, ring amidine, croak pyridine, guanidine or urea derivative.
3. according to the described anticorrosive paint of claim 2, it is characterized in that: epoxy resin, curing agent and auxiliary agent weight ratio that described subbing is formed are 49～85: 5～49: 2～10; Flexibilizer, levelling agent, defoamer and promoter weight ratio that described auxiliary agent is formed are 40～70: 10～20: 10～20: 10～20.
4. according to claim 2,3 described anticorrosive paints, it is characterized in that:
The subbing prescription:
5. according to the described anticorrosive paint of claim 1, it is characterized in that: described investment precoat is made up of epoxy resin, curing agent, filler and other auxiliary agents; Epoxy resin can be bisphenol A type epoxy resin or phenol aldehyde modified epoxy resin; Curing agent can be phenolic hydroxyl group resin, dicyandiamide, replacement dicyandiamide or dicarboxyl acid dihydrazide; Filler can be precipitated silica, aerosil or mica powder; Other auxiliary agents are made up of flexibilizer, levelling agent and promoter; Flexibilizer can be phthalate or epoxy ester series; Levelling agent can be polyethyl acrylate or butyl acrylate; Promoter can be glyoxal ethyline quinoline, 2-benzylimidazoline, ring amidine, croak pyridine, guanidine or urea derivative.
6. according to the described anticorrosive paint of claim 5, it is characterized in that: epoxy resin, curing agent, filler and other auxiliary agent percentage by weights that described investment precoat is formed are 25～44: 25～44: 10～40: 2～10; Flexibilizer, levelling agent and promoter percentage by weight that described other auxiliary agents are formed are 50～70: 15～25: 15～25.
7. according to claim 5,6 described investment precoats, it is characterized in that:
The investment precoat prescription:
8. the using method of claim 2 and 5 described insulating corrosion coating, it is characterized in that: subbing is coated on needs electric insulation and etch-proof object to ask clean surface, investment precoat is coated on by the formed primer coating of subbing surface, forms the etch-proof coating of electric insulation jointly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101608665A CN102294869A (en) | 2011-06-16 | 2011-06-16 | Epoxy powder insulating anticorrosive paint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101608665A CN102294869A (en) | 2011-06-16 | 2011-06-16 | Epoxy powder insulating anticorrosive paint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102294869A true CN102294869A (en) | 2011-12-28 |
Family
ID=45355652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101608665A Pending CN102294869A (en) | 2011-06-16 | 2011-06-16 | Epoxy powder insulating anticorrosive paint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102294869A (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103497600A (en) * | 2013-09-03 | 2014-01-08 | 安徽普源分离机械制造有限公司 | Insulating powdery paint for electromagnetic wire |
| CN103773176A (en) * | 2014-01-20 | 2014-05-07 | 南通钰成光电科技有限公司 | Environment-friendly coating for lamp ornament and preparation method of environment-friendly coating |
| CN103881536A (en) * | 2014-02-25 | 2014-06-25 | 蚌埠凯盛工程技术有限公司 | Halogen-free, flame-retardant and high-temperature-resistant insulating paint |
| CN103897555A (en) * | 2013-11-19 | 2014-07-02 | 东南大学 | Powder coating with high levelling property |
| CN104893494A (en) * | 2015-05-13 | 2015-09-09 | 国润恒科（天津）防腐工程技术有限公司 | Powder coating used for heavy-duty corrosion-resistant high-bounding stress double-coating thin layer steel bar, heavy-duty corrosion-resistant high-bounding stress double-coating thin layer steel bar, and manufacturing method and applications of heavy-duty corrosion-resistant high-bounding stress double-coating thin layer steel bar |
| CN105199535A (en) * | 2015-09-18 | 2015-12-30 | 广州擎天材料科技有限公司 | A kind of pure epoxy powder coating for electromagnetic wire coating and preparation method thereof |
| WO2016004609A1 (en) * | 2014-07-10 | 2016-01-14 | 姚红丽 | Wear-resistant coating agent for textile equipment |
| CN105602356A (en) * | 2016-02-17 | 2016-05-25 | 合肥爱诺伟机械设备有限公司 | Wear and corrosion resisting centrifugal pump impeller coating layer and preparation method and application thereof |
| CN105754454A (en) * | 2016-04-21 | 2016-07-13 | 宁波市七彩塑粉有限公司 | Electric insulation anti-corrosion powder coating |
| CN105754455A (en) * | 2016-04-21 | 2016-07-13 | 宁波市七彩塑粉有限公司 | Method for preparing electric insulation anticorrosion powder coating |
| CN106589319A (en) * | 2016-11-22 | 2017-04-26 | 天津翔盛新材料有限公司 | Four-functional-group super-flexible linear phenolic curing agent dedicated for heavy-duty anticorrosive powder coating, and synthetic method and application thereof |
| CN111876047A (en) * | 2020-07-16 | 2020-11-03 | 溧阳市永新绝缘粉末有限公司 | High-temperature-resistant rapid-curing insulating powder coating, preparation method and application method thereof |
| CN114854287A (en) * | 2022-06-08 | 2022-08-05 | 宁波博士盾纳米新材料科技有限公司 | Frosted high-performance composite epoxy steel bar coating and preparation method thereof |
| CN114990925A (en) * | 2021-03-02 | 2022-09-02 | 中国制浆造纸研究院有限公司 | Preparation method of heat-resistant auxiliary agent |
| WO2024114726A1 (en) * | 2022-11-30 | 2024-06-06 | Valspar Coatings (Shanghai) Co. Ltd. | Thermal-insulating electro-insulating coating system and coated article |
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| CN101928503A (en) * | 2009-06-19 | 2010-12-29 | 扬州市金晨化工有限公司 | Anti-corrosion and super-weatherability powder coating and preparation process thereof |
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2011
- 2011-06-16 CN CN2011101608665A patent/CN102294869A/en active Pending
Patent Citations (4)
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| US20050037207A1 (en) * | 2002-08-05 | 2005-02-17 | Hirofumi Komiyama | Epoxy resin powder coating material |
| US20070116963A1 (en) * | 2003-12-09 | 2007-05-24 | Chuo Hatsujo Kabushiki Kaisha | Highly durable spring and method for coating same |
| CN1786093A (en) * | 2005-11-30 | 2006-06-14 | 北京北航天汇科技孵化器有限公司 | Expansion type fire retarding epoxide resin powder paint suitable for steel structure and its preparation method |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103497600B (en) * | 2013-09-03 | 2016-05-04 | 安徽普源分离机械制造有限公司 | A kind of coating material of insulating powder in use for electromagnetic wire |
| CN103497600A (en) * | 2013-09-03 | 2014-01-08 | 安徽普源分离机械制造有限公司 | Insulating powdery paint for electromagnetic wire |
| CN103897555A (en) * | 2013-11-19 | 2014-07-02 | 东南大学 | Powder coating with high levelling property |
| CN103773176A (en) * | 2014-01-20 | 2014-05-07 | 南通钰成光电科技有限公司 | Environment-friendly coating for lamp ornament and preparation method of environment-friendly coating |
| CN103881536A (en) * | 2014-02-25 | 2014-06-25 | 蚌埠凯盛工程技术有限公司 | Halogen-free, flame-retardant and high-temperature-resistant insulating paint |
| WO2016004609A1 (en) * | 2014-07-10 | 2016-01-14 | 姚红丽 | Wear-resistant coating agent for textile equipment |
| CN104893494A (en) * | 2015-05-13 | 2015-09-09 | 国润恒科（天津）防腐工程技术有限公司 | Powder coating used for heavy-duty corrosion-resistant high-bounding stress double-coating thin layer steel bar, heavy-duty corrosion-resistant high-bounding stress double-coating thin layer steel bar, and manufacturing method and applications of heavy-duty corrosion-resistant high-bounding stress double-coating thin layer steel bar |
| CN105199535B (en) * | 2015-09-18 | 2018-05-29 | 广州擎天材料科技有限公司 | A kind of electromagnetic wire application pure epoxy powdery paints and preparation method thereof |
| CN105199535A (en) * | 2015-09-18 | 2015-12-30 | 广州擎天材料科技有限公司 | A kind of pure epoxy powder coating for electromagnetic wire coating and preparation method thereof |
| CN105602356A (en) * | 2016-02-17 | 2016-05-25 | 合肥爱诺伟机械设备有限公司 | Wear and corrosion resisting centrifugal pump impeller coating layer and preparation method and application thereof |
| CN105602356B (en) * | 2016-02-17 | 2018-06-26 | 合肥爱诺伟机械设备有限公司 | Centrifugal pump impeller coating of wear resistant corrosion resistant and its preparation method and application |
| CN105754455A (en) * | 2016-04-21 | 2016-07-13 | 宁波市七彩塑粉有限公司 | Method for preparing electric insulation anticorrosion powder coating |
| CN105754454A (en) * | 2016-04-21 | 2016-07-13 | 宁波市七彩塑粉有限公司 | Electric insulation anti-corrosion powder coating |
| CN106589319A (en) * | 2016-11-22 | 2017-04-26 | 天津翔盛新材料有限公司 | Four-functional-group super-flexible linear phenolic curing agent dedicated for heavy-duty anticorrosive powder coating, and synthetic method and application thereof |
| CN111876047A (en) * | 2020-07-16 | 2020-11-03 | 溧阳市永新绝缘粉末有限公司 | High-temperature-resistant rapid-curing insulating powder coating, preparation method and application method thereof |
| CN114990925A (en) * | 2021-03-02 | 2022-09-02 | 中国制浆造纸研究院有限公司 | Preparation method of heat-resistant auxiliary agent |
| CN114990925B (en) * | 2021-03-02 | 2023-06-16 | 中国制浆造纸研究院有限公司 | Preparation method of heat-resistant auxiliary agent |
| CN114854287A (en) * | 2022-06-08 | 2022-08-05 | 宁波博士盾纳米新材料科技有限公司 | Frosted high-performance composite epoxy steel bar coating and preparation method thereof |
| CN114854287B (en) * | 2022-06-08 | 2023-03-10 | 宁波博士盾纳米新材料科技有限公司 | Preparation process of frosted high-performance composite epoxy steel bar coating |
| WO2024114726A1 (en) * | 2022-11-30 | 2024-06-06 | Valspar Coatings (Shanghai) Co. Ltd. | Thermal-insulating electro-insulating coating system and coated article |
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Application publication date: 20111228 |