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polyurea coatings

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Published: 01 January 2003
Fig. 27 Structure of aliphatic polyurea coatings. X is one of the polyaspartic esters shown as (a), (b), (c), and (d). The speed of reaction and therefore the pot life and cure time increase from (a) (the slowest) to (d) (the fastest). (d) is the most flexible and has the greatest elongation. More
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
... Abstract Two-component polyurea elastomeric coating/lining systems are the newest technology in the protective coating/lining industry and a wide variety of applications have been developed. These include coating/lining applications over concrete, geotextile membranes, various metals...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006036
EISBN: 978-1-62708-172-6
... polyurea because it is the reaction of an aliphatic polyisocyanate with an aliphatic diamine—the polyaspartic ester. However, polyaspartic coatings are very different in both application and coating performance properties from conventional polyureas. For example, polyaspartics allow the formulator...
Image
Published: 30 September 2015
Fig. 30 Fabricated part—aliphatic polyurea in-mold-coated structural aromatic with chopped glass reinforcement 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
... cross-linked resins thermoplastic resins cross-linked thermosetting resins alkyd resins epoxy esters lacquers water-borne coatings epoxies unsaturated polyesters urethane coatings high-temperature curing silicones phenolic linings organic coatings polyurea coatings PAINTS OR LININGS...
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
... Abstract Coating of cast irons is done to improve appearance and resistance to degradation due to corrosion, erosion, and wear. This article describes inorganic coating methods commonly applied to cast irons. The coating methods include plating, hot dip coating, conversion coating, diffusion...
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
... lined on the water side to reduce or stop leakage. This typically involves the use of either fabric- (glass cloth or scrim cloth) reinforced coatings or thick-film elastomeric systems, such as asphalt-modified polyurethane, flexible polyurethane, or polyurea coatings. Cracks caused by concrete shrinkage...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006059
EISBN: 978-1-62708-172-6
... protection. Only carbon steel conveyance pipelines typically involve applied coatings and linings. These corrosion-protection alternatives mainly consist of epoxy or polyurethane coating systems. The external coatings can also include tape wrap systems, polyurea coatings, and other liquid-applied coating...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006014
EISBN: 978-1-62708-172-6
... coatings. Examples of thermosetting coatings are two-part epoxies, polyurethanes, polyureas, polyesters, polysiloxanes, and many organic zinc coatings. A coating system for steel in a mild environment may consist of power tool cleaning (SSPC-SP 3) or brush-off blast cleaning (SSPC-SP 7) and application...
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
... Abstract Polymeric floor coatings refer to flooring materials composed of multicomponent thermoset resins formulated with various fillers and pigments that are installed in situ, usually over concrete substrates. Polymeric flooring systems, specified for all industrial and commercial...
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
... of polyurethane coatings include polyester, polyacrylate (acrylic), and polyether polyols. Isocyanate reactions with water and amines to form polyureas also have an important role in anticorrosion coatings. Single-component polyurethane coatings (i.e., moisture cured) are based on the reaction with water to form...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006010
EISBN: 978-1-62708-172-6
... Application for Polyureas and High-Solid Coatings Protective Coatings Inspector Program Protective Coatings Specialist Program Spray Application Basics Water-Jetting Program As of January 1, 2013, SSPC, as part of the QP 1 program, established requirements for certification of applicators...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006050
EISBN: 978-1-62708-172-6
.... Polyureas are thick-film products applied by plural-component spray that cure quickly for rapid return to service. They also have excellent chemical resistance. This is the same technology used for truck bed liners. Polyaspartic coatings are a variation of polyureas that are applied by standard spray...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006005
EISBN: 978-1-62708-172-6
... References 1. Primeaux D. , Polyurea-Based Coatings , Protective Organic Coatings , Vol 5B , ASM Handbook , ASM International , 2015 2. “How to Draw Organic Molecules,” IvyRose Holistic , www.ivy-rose.co.uk/Chemistry/Organic/How-to-draw-organic-molecules.php Selected References...
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: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006072
EISBN: 978-1-62708-172-6
... Abstract This article provides a basic overview of bridge corrosion, where it occurs on steel and concrete bridge structures, and how to prevent corrosion by using coatings. It describes types of bridge designs, with illustrations, and presents information on how corrosion occurs in different...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006492
EISBN: 978-1-62708-207-5
... coatings and paints. It addresses some of the more common corrosion mechanisms, including corrosion driven by pH extremes, pitting corrosion, crevice corrosion, galvanic corrosion, and filiform corrosion. The article also describes in-plant as well as field application procedures for cleaning and coating...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003474
EISBN: 978-1-62708-195-5
... of the partially reacted matrix is completed in the molding process. Faster dual-acting presses with accurately controlled parallelism, closing speed, and pressing force are also used in production. These presses have the potential to reduce press cycle time to less than 1 min. Molded coating can be applied during...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006070
EISBN: 978-1-62708-172-6
... Abstract Soluble salts on a surface can affect a steel substrate or coating in two principal ways: corrosion acceleration and osmotic blistering. This article provides a detailed discussion on the mechanisms for each of these deleterious effects. It describes the most detrimental anions...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006935
EISBN: 978-1-62708-395-9
... resistance. Care must be taken so that delamination does not occur, especially in the pinch-off area. Filament Winding By coating filaments with thermoplastic resins, filament winding can be carried out either by remelting the resin after the winding is complete or by melting the resin as the winding...