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coating degradation

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Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003844
EISBN: 978-1-62708-183-2
... Abstract Paints and protective coatings are the most common means of protecting materials from deterioration. This article focuses on coating degradation resulting from the environmental interaction with the coatings. The major environmental influences that result in coating degradation include...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006073
EISBN: 978-1-62708-172-6
...-internal stress, and vibration-external stress; and (4) biological influences such as microbiological, mildew, and marine fouling. biological influence coating degradation energy paints permeation pigments stress PAINTS AND COATINGS of all types are widely used to provide color and...
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
... Abstract This article reviews the various substrates for coatings, namely, steel, cast iron, galvanized steel, aluminum, stainless steel, nonferrous metals, concrete, and wood. General guidance for surface preparation and coating selection is provided along with unique requirements for the...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006025
EISBN: 978-1-62708-172-6
... stripe coating is specified for blast-cleaned steel or substrates that may be subject to more rapid degradation or contamination, it is not uncommon to apply a full overall coat prior to the stripe coat. After the full overall coat has achieved the proper dry-to-recoat interval, a stripe coat then is...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006008
EISBN: 978-1-62708-172-6
... thickness of topcoat. Poor opacity and covering power of topcoat. Strong color of primer/undercoats Prevention: Apply adequate dry-film thickness between individual coats. Use opaque coatings with good opacity. Fig. 22 Discoloration, detachment and/or blistering, and general degradation of a paint...
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
... and exterior coatings Asphalt pitch Good water resistance and ultraviolent stability. Will not crack or degrade in sunlight. Nontoxic and suitable for exposure to food products. Resistant to mineral salts and alkalis to 30% concentration Black color only. Poor resistance to hydrocarbon solvents...
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
... listed earlier. Fig. 27 Chemical spot testing. Source: Ref 6 Immersion in water or another chemical solution can cause the degradation of an applied coating system. Knowledge of how a coating resists immersion is helpful in predicting its service life. Failure in an immersion test may be...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006048
EISBN: 978-1-62708-172-6
... rates. With the right methods, these coatings can literally be applied underwater. The waxes are chemically inert, so they do not degrade and have excellent length of service. For example, one application of microcrystalline wax that had effectively protected a large pipe for over 50 years was scraped...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006062
EISBN: 978-1-62708-172-6
... Abstract Maintenance coating is an important part of any meaningful asset-preservation strategy in facilities producing pulp and paper and other chemicals. This article discusses maintenance coating for carbon steel structures and process equipment exposed to normal external pulp and paper mill...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006030
EISBN: 978-1-62708-172-6
... Abstract This article discusses the occupational health hazards related to industrial protective coating application and removal. It explains the health hazards associated with coating constituents such as lead, cadmium, chromium, arsenic, silica, and asbestos. The article also discusses hazard...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006015
EISBN: 978-1-62708-172-6
... Significant color change can occur during the cure process due to: Heat degradation of the pigments ( Fig. 17 ) Reaction with combustion gases Fig. 17 Color fading due to excessive heat. Courtesy of Denis Grimshaw, Jotun Powder Coatings. The degree of discoloration will depend on the...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001319
EISBN: 978-1-62708-170-2
... final step in the process is the application of a coating that offers the desired performance. Historically, surface engineering methods have included mechanical abrasion, solvent wiping to remove surface contamination, solvent swelling, wet chemical etching, and the...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001277
EISBN: 978-1-62708-170-2
... Abstract Painting is a generic term for the application of a thin organic coating to the surface of a material for decorative, protective, or functional purposes. This article provides a detailed account of the types and selection factors of paints and the various application methods, including...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006787
EISBN: 978-1-62708-295-2
... turbines led to high-temperature attack of TBCs and environmental barrier coatings due to the appearance of molten engine-ingested deposits of calcium-magnesium-alumino-silicate (CMAS) onto surfaces of hot-section components. Degradation of TBCs by CMAS is both thermochemical and thermomechanical in origin...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006007
EISBN: 978-1-62708-172-6
... excellent adhesion and a tough finish resistant to abrasion, chemical degradation, and soil-stress damage. It is a 100% solids system with no solvents. The FBE coatings are formulated specifically to meet the needs of the various markets, because physical and performance requirements are different for an...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003818
EISBN: 978-1-62708-183-2
... behavior on soft solders, pewter, bearing alloys, tin-copper alloys, and tin-silver alloys. It reviews the influence of corrosion on immersion tin coating, tin-cadmium alloy coatings, tin-cobalt coatings, tin-copper coatings, tin-lead coatings, tin-nickel coatings, and tin-zinc coatings. The general...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006044
EISBN: 978-1-62708-172-6
... Abstract Acrylic coatings are one of the major generic classes of organic coatings and are prevalent in both architectural and industrial applications. This article provides information on the chemistry of acrylic polymers, the methods used in their manufacture, the relationship between...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003028
EISBN: 978-1-62708-200-6
... Abstract This article describes weathering and environmental factors that contribute to degradation in plastics, including temperature variations, moisture, sunlight, oxidation, microbiologic attack, and other environmental elements. It presents a general overview of aging factors, their...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006031
EISBN: 978-1-62708-172-6
... could be used to prepare a practical formulation. The structure of PVDF ( Fig. 2c ) contains alternating carbon-fluorine and carbon-hydrogen bonds. This structure provides a polarity that enables the formulation of practical coatings that resist environmental degradation, dirt retention, oxidation...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001282
EISBN: 978-1-62708-170-2
... Abstract This article introduces thermal spray coatings and describes the various types of coating processes and coating devices, including the flame spray, electric-arc spray, plasma spray, transferred plasma arc, high-velocity oxyfuel, and detonation gun. It provides information on the...