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organic zinc-rich coatings

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Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006049
EISBN: 978-1-62708-172-6
... used, namely, inorganic and organic zinc-rich coatings. Common inorganic binders such as post-cured water-based alkali metal silicates, self-cured water-based alkali metal silicates, and self-cured solvent-based alkyl silicates, are reviewed. The article also compares inorganic and organic zinc-rich...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003693
EISBN: 978-1-62708-182-5
... Abstract This article describes the characteristics of zinc-rich coatings that can be subcategorized according to the type of binder material used. It discusses the formulations of zinc-rich coatings with organic binders. The three major groups of inorganic zinc-rich coatings categorized...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006051
EISBN: 978-1-62708-172-6
.... Potentially shorter recoat windows due to fast cure time Application can occur through the use of plural-component or conventional spray equipment as well as brush or roller application. Zinc-rich coatings Organic zinc-rich coatings Galvanic protection afforded by the zinc content, with chemical...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004108
EISBN: 978-1-62708-184-9
... development in protective coatings in the last 50 years. Zinc dust is loaded into both organic and inorganic binders to form primers that are extremely effective in the prevention of corrosion, underfilm creepage, and coating system failure. Inorganic Zinc-Rich Primers Inorganic zinc-rich primers...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001304
EISBN: 978-1-62708-170-2
..., hot-dip coating processes, electrogalvanizing, electroplating, metal cladding, organic coatings, zinc-rich coatings, porcelain enameling, thermal spraying, hardfacing, vapor-deposited coatings, surface modification, and surface hardening via heat treatment. alloy steel cadmium plating carbon...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001012
EISBN: 978-1-62708-161-0
... of the steel. Zincrometal Zincrometal is also used for outer body panels in automobiles. First introduced in 1972, Zincrometal is a coil coated product consisting of a mixed-oxide underlayer containing metallic zinc particles and a zinc-rich organic (epoxy) topcoat. It is weldable, formable, paintable...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003809
EISBN: 978-1-62708-183-2
.... Although some galvanic protection is afforded, most of the protection is provided by the barrier formed by zinc corrosion products. Zinc-rich primer is a typical component of a heavy-duty coatings system. Corrosion Protection of Steel Structures by Organic Coatings All features that are important...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006335
EISBN: 978-1-62708-179-5
... of coatings or a coating system depends primarily on the particular structure, exposure environment, and requirements for corrosion protection. Coatings and coatings systems that typically are used, in general order of increasing performance characteristics, are alkyds, acrylics, zinc-rich primers, epoxies...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006028
EISBN: 978-1-62708-172-6
... are the reaction products of alkoxy silane monomers and metal hydroxide (e.g., sodium or potassium hydroxide). They are highly specialized in protective finishes such as zinc-rich primers, masonry treatments for water repellency, or cement coatings into which they are compounded directly for improved physical...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003808
EISBN: 978-1-62708-183-2
...). The coating microstructure is rather complex, consisting of aluminum-rich dendrites separated by zinc-rich interdendritic regions. A thin Fe-Al-Zn intermetallic layer is present at the steel surface. The intermetallic layer is separated from the alloy overlay by a thin silicon-rich layer. Silicon is also...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006040
EISBN: 978-1-62708-172-6
...). In states or regions where volatile organic compound (VOC) regulations are stricter, the 100%-solids amine-cured epoxy coatings are more often selected, because the polyamide epoxy coatings do not meet the VOC limits. A common option provided by some manufacturers today (2015) is an organic zinc-rich primer...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003549
EISBN: 978-1-62708-180-1
... are described in more detail in Corrosion , Volume 13 of the ASM Handbook. However, as a brief introduction, the electrochemical nature of corrosion can be illustrated by the attack on zinc by hydrochloric acid. When zinc is placed in dilute hydrochloric acid, a vigorous reaction occurs; hydrogen gas...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001271
EISBN: 978-1-62708-170-2
... automotive panels, the Zn-Fe sheet is further electroplated with a second but much thinner top layer of iron-rich Zn-Fe coating, 3 to 5 g/m 2 of Zn-Fe containing at least 80 wt% Fe ( Ref 17 ). The iron-rich top layer was developed to improve the paintability and formability of the primary zinc-rich alloy...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006027
EISBN: 978-1-62708-172-6
... , Corrosion: Fundamentals, Testing, and Protection , Vol 13A , ASM Handbook , ASM International , 2003 , p 817 – 833 • Tator K.B. , Zinc-Rich Coatings , Corrosion: Fundamentals, Testing, and Protection , ASM Handbook , Vol 13A , ASM International , 2003 , p 837 – 844 ...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003830
EISBN: 978-1-62708-183-2
... the outer layer to the steel. Galfan, 95Zn-5Al and a small amount of mischmetal, has a multiphase microstructure that is characteristic of its composition, exhibiting a lamellar structure of alternating zinc-rich and aluminum-rich phases. More recently, some magnesium-alloyed zinc-coated steel sheets have...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003144
EISBN: 978-1-62708-199-3
... and corrosion properties. Pure zinc shot is used primarily for additions to electrogalvanizing baths, and zinc powder and dust are used in batteries and in enhanced corrosion-resistant paints. Zinc oxide is used as a pigment in primers and finish paint (zinc-rich organic and inorganic coatings), as a reducing...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006072
EISBN: 978-1-62708-172-6
... consumed in the atmosphere, while the zinc-rich primer inhibits corrosion from occurring at locations where the outer coating layer is breached. Coating systems consisting of a zinc-rich primer, an epoxy intermediate coat, and an acrylic polyurethane topcoat have been used to protect steel bridges in most...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003217
EISBN: 978-1-62708-199-3
... provides both barrier and galvanic protection. Because the zinc-rich constituent is intimately distributed throughout the coating, it will be in contact with exposed steel at any break in the coating and at cut edges. Although less galvanic protection is available than with pure galvanized coatings...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006026
EISBN: 978-1-62708-172-6
... organizations, including ASTM International, SSPC: The Society for Protective Coatings, NACE International, and the International Organization for Standardization (ISO), to name a few. There are also industry-specific organizations that have prepared testing protocols to specifically address the types...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006035
EISBN: 978-1-62708-172-6
... coatings over metallic substrates to impede or prevent corrosion. Barrier coatings that exhibit low permeability to water and chemical solutions can effectively remove the conductive electrolyte that is essential to the corrosion process. Zinc-rich coatings that corrode preferentially to protect...