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urethane coatings

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Published: 30 September 2015
Fig. 9 Typical on-ground steel water storage tank coated externally with a zinc/epoxy/urethane coating system More
Image
Published: 01 January 2003
Fig. 24 Molecular structure of hexamethylene diisocyanate, an aliphatic isocyanate used in urethane coatings. Source: Ref 5 More
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Published: 01 January 2003
Fig. 22 Molecular structures of toluene diisocyanate, an aromatic isocyanate used in urethane coatings. (a) 2,4 isomer. (b) 2,6 isomer. Source: Ref 5 More
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003692
EISBN: 978-1-62708-182-5
... deposited by evaporation of water, a class of coatings called water-borne coatings. The coatings that chemically cross link by copolymerization, including epoxies, unsaturated polyesters, urethanes, high-temperature curing silicones, and phenolic linings, are also described. hardening autooxidative...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006011
EISBN: 978-1-62708-172-6
... esters are a special class of secondary amines designed to have reduced reactivity with polyisocyanates that are suitable for coatings applications. Polyaspartics are covered in a separate article, “Polyaspartic Coatings,” in this Volume. Fig. 1 Reactions of isocyanates to form urethane and urea...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001325
EISBN: 978-1-62708-170-2
...-solids has been the method most often selected for meeting the VOC requirements for topcoats. Development in this area has been concentrated primarily on aliphatic urethanes. Coatings formulated with these materials have the desirable properties of weatherability, durability, and flexibility. Low...
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
.... The isocyanate can be combined with other generic materials to enhance chemical, moisture, low-temperature, and abrasion resistance. Aromatic urethanes are typically used as primers, adhesion promoters, and intermediate coats. Polyureas Fast- to very-fast-curing, highly elastic thick-film coatings with good...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001278
EISBN: 978-1-62708-170-2
... with urethane linkages, lower-solids coatings are possible that do not require the use of rheology control agents for good application properties. Soft side chains other than polycaprolactone can be incorporated into the acrylic polymer. Ryntz has shown a number of ways to incorporate a polyester...
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Published: 01 June 2012
Fig. 2 Scanning electron micrograph of primary human osteoblasts on the surface of a calcium-phosphate-coated poly (carbonate urethane) substrate. Courtesy of D.H. Barnes More
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Published: 30 September 2015
Fig. 19 Lower-film-stress acrylic coating system being applied over an aged epoxy-urethane system on a hydropillar (type of water storage tank) More
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006037
EISBN: 978-1-62708-172-6
... are usually only the top broadcast layer, with one or two coats of sealer. Epoxy, urethane, urea, and acrylate chemistries are all commonly used with this system design. Fig. 26 Broadcast system (colored quartz type). Courtesy of Stonhard Fig. 27 Broadcast system (flake type). Courtesy...
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Published: 01 June 2012
Fig. 1 Scanning electron micrograph of a calcium phosphate coating on the surface of a poly (carbonate urethane) substrate, formed by immersion in a concentrated simulated body-fluid-like solution. Courtesy of D.H. Barnes More
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Published: 01 January 2003
Fig. 7 Impedance spectra for coated steel exposed to natural seawater for 1, 4, and 7 months at Port Hueneme, CA. (a) Zinc primer, epoxy polyamide midcoat, urethane topcoat. (b) Zinc primer, epoxy polyamide, midcoat, latex topcoat. (c) Epoxy polyamide primer and midcoat, latex topcoat. (d More
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004104
EISBN: 978-1-62708-184-9
... are available ( Ref 8 , 9 ). Generic coating types include alkyds, coal tar epoxies, zinc-rich coatings, polyester resins, polyurethanes, and urethanes. All coatings must meet local, state, and federal air quality regulations. The manufacturer's recommendations for surface preparation should be strictly...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005242
EISBN: 978-1-62708-187-0
... with binders based on acid-cured resins of furan or resoles (phenolic), alkaline phenolic (phenolic ester), acrylic epoxies, and phenolic urethane, which is probably the most significant in North America Thermally cured organic binders such as alkyd oil (also known as alkyd urethane or oil sand...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003048
EISBN: 978-1-62708-200-6
... in this class are chemically curing elastomers. The families include urethanes, the best of the acrylics, polyether-modified silicones, polysulfides, and silicones. In building construction, these sealants are usually intended for use in exterior high-movement applications. Some of the silicones are also used...
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005354
EISBN: 978-1-62708-187-0
... binders, namely, furan no-bake resins, phenolic no-bake resins, and urethanes. The article provides an overview of gas-cured organic binders. It also illustrates the three commercial systems for sand reclamation: wet reclamation systems, dry reclamation systems, and thermal reclamation. inorganic...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006047
EISBN: 978-1-62708-172-6
.... Initially, polyurea technology had set itself in a different class of coating/lining systems as compared to conventional urethane coating/lining systems. This distinction was primarily due to the unique characteristics of the technology, both in processing and performance. However, over the years there has...
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
.../waterborne acrylic … √ … Thermal spray coating/sealer √ √ … Epoxy sealer/epoxy mastic/acrylic polyurethane or polyaspartic … … √ Epoxy mastic/acrylic polyurethane … … √ Epoxy mastic/waterborne acrylic … … √ Moisture-cured urethane sealer/moisture-cured urethane/moisture-cured...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005687
EISBN: 978-1-62708-198-6
... Acetal resin, Polyoxymethylene, polytrioxane POM C, POM-C, POMC Heart valves Polysulfones Polyphenylsulfone Polyphenylsulphone PPSU Fixation devices Polysulfone ASTM F702 PSU Fixation devices Vascular strippers Polyurethanes Poly(ether urethane) ASTM F624 Polyether...