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Krylon Appliance Epoxy Spray Paint Almond K
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Krylon Appliance Epoxy Spray Paint Almond K - (Box of 6) Save by the box: $9.58 ea
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Krylon Appliance Epoxy Spray Paint Black K
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Krylon Appliance Epoxy Spray Paint Black K - (Box of 6) Save by the box: $9.58 ea
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Krylon Appliance Epoxy Spray Paint White K
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Krylon Appliance Epoxy Spray Paint White K - (Box of 6) Save by the box: $9.58 ea
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Krylon Appliance Touch-Up Tubes .5 Oz White - (Box of 6) Save by the box: $8.77 ea
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Krylon BBQ & Stove Spray Paint Aluminum
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Krylon BBQ & Stove Spray Paint Aluminum - (Box of 6) Save by the box: $11.79 ea
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Krylon BBQ & Stove Spray Paint Black
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Krylon BBQ & Stove Spray Paint Black - (Box of 6) Save by the box: $11.79 ea
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Krylon Clear Polyurethane Spray Coating Gloss K
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Krylon Clear Polyurethane Spray Coating Gloss K - (Box of 6) Save by the box: $9.81 ea
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Krylon Clear Polyurethane Spray Coating Satin K
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Krylon Clear Polyurethane Spray Coating Satin K - (Box of 6) Save by the box: $9.81 ea
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Krylon Fluorescent Spray Paint Cerise K
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Krylon Fluorescent Spray Paint Cerise K - (Box of 6) Save by the box: $10.24 ea
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Krylon Fluorescent Spray Paint Green K
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Krylon Fluorescent Spray Paint Green K - (Box of 6) Save by the box: $10.24 ea
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Krylon Fluorescent Spray Paint Lemon Yellow K
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Krylon Fluorescent Spray Paint Lemon Yellow K - (Box of 6) Save by the box: $10.24 ea
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Krylon Fluorescent Spray Paint Red Orange K
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Krylon Fluorescent Spray Paint Red Orange K - (Box of 6) Save by the box: $10.24 ea
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Krylon Fluorescent Spray Paint Yellow Orange K
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Krylon Fluorescent Spray Paint Yellow Orange K - (Box of 6) Save by the box: $10.24 ea
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Krylon Frosted Glass Spray Paint 12 Oz.
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Krylon Frosted Glass Spray Paint 12 Oz. - (Box of 6) Save by the box: $9.79 ea
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Krylon High Heat & Radiator Spray Paint Beige K
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Krylon High Heat & Radiator Spray Paint Beige K - (Box of 6) Save by the box: $10.50 ea
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Krylon High Heat & Radiator Spray Paint White K
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Krylon High Heat & Radiator Spray Paint White K - (Box of 6) Save by the box: $10.50 ea
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Krylon High Heat Max Black Spray Paint K
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Krylon High Heat Max Black Spray Paint K - (Box of 6) Save by the box: $13.07 ea
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Krylon Lacquer Spray Paint Gloss Black K
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Krylon Lacquer Spray Paint Gloss Black K - (Box of 6) Save by the box: $9.42 ea
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Contact us to discuss your requirements of special coating. Our experienced sales team can help you identify the options that best suit your needs.
Additional reading:
Air Operated Diaphragm Pump - Complete Overview
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Krylon Lacquer Spray Paint Gloss Clear K
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Krylon Lacquer Spray Paint Gloss Clear K - (Box of 6) Save by the box: $9.42 ea
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Krylon Lacquer Spray Paint Gloss White K
China Fabric Adhesive Tape Coating Machine Manufacturer and ...
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Krylon Lacquer Spray Paint Gloss White K - (Box of 6) Save by the box: $9.42 ea
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Krylon OSHA Safety Blue Spray Paint K
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Krylon OSHA Safety Blue Spray Paint K - (Box of 6) Save by the box: $10.24 ea
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Krylon OSHA Safety Green Spray Paint K
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Krylon OSHA Safety Green Spray Paint K - (Box of 6) Save by the box: $10.24 ea
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Krylon OSHA Safety Orange Spray Paint K
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Krylon OSHA Safety Orange Spray Paint K - (Box of 6) Save by the box: $10.24 ea
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Krylon OSHA Safety Purple Spray Paint K
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Krylon OSHA Safety Purple Spray Paint K - (Box of 6) Save by the box: $10.24 ea
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Krylon OSHA Safety Red Spray Paint K
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Krylon OSHA Safety Red Spray Paint K - (Box of 6) Save by the box: $10.24 ea
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Krylon OSHA Safety Yellow Spray Paint K
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Krylon OSHA Safety Yellow Spray Paint K - (Box of 6) Save by the box: $10.24 ea
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Krylon Tri-Flow Superior Lubricant 4 Oz Spray TF
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Krylon Tri-Flow Superior Lubricant 6 Oz Spray TF
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Krylon Tri-Flow Superior Lubricant 6 Oz Spray TF
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Substance spread over a surface
Lacquer being sprayed onto a cabinet
A coating is a covering that is applied to the surface of an object, or substrate.[1] The purpose of applying the coating may be decorative, functional, or both.[2] Coatings may be applied as liquids, gases or solids e.g. powder coatings.
Paints and lacquers are coatings that mostly have dual uses, which are protecting the substrate and being decorative, although some artists paints are only for decoration, and the paint on large industrial pipes is for identification (e.g. blue for process water, red for fire-fighting control) in addition to preventing corrosion. Along with corrosion resistance, functional coatings may also be applied to change the surface properties of the substrate, such as adhesion, wettability, or wear resistance.[3] In other cases the coating adds a completely new property, such as a magnetic response or electrical conductivity (as in semiconductor device fabrication, where the substrate is a wafer), and forms an essential part of the finished product.[4][5]
A major consideration for most coating processes is controlling coating thickness. Methods of achieving this range from a simple brush to expensive precision machinery in the electronics industry. Limiting coating area is crucial in some applications, such as printing.
"Roll-to-roll" or "web-based" coating is the process of applying a thin film of functional material to a substrate on a roll, such as paper, fabric, film, foil, or sheet stock. This continuous process is highly efficient for producing large volumes of coated materials, which are essential in various industries including printing, packaging, and electronics. The technology allows for consistent high-quality application of the coating material over large surface areas, enhancing productivity and uniformity.[6]
Applications
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Coatings can be both decorative and have other functions.[3][7] A pipe carrying water for a fire suppression system can be coated with a red (for identification) anticorrosion paint. Most coatings to some extent protect the substrate, such as maintenance coatings for metals and concrete.[8] A decorative coating can offer a particular reflective property, such as high gloss, satin, matte, or flat appearance.[9]
A major coating application is to protect metal from corrosion.[10][11][12][13][14] Automotive coatings are used to enhance the appearance and durability of vehicles. These include primers, basecoats, and clearcoats, primarily applied with spray guns and electrostatically.[15]
The body and underbody of automobiles receive some form of underbody coating.[16] Such anticorrosion coatings may use graphene in combination with water-based epoxies.[17]
Coatings are used to seal the surface of concrete, such as seamless polymer/resin flooring,[18][19][20][21][22] bund wall/containment lining, waterproofing and damp proofing concrete walls, and bridge decks.[23][24][25][26]
Most roof coatings are designed primarily for waterproofing, though sun reflection (to reduce heating and cooling) may also be a consideration. They tend to be elastomeric to allow for movement of the roof without cracking within the coating membrane.[27][28][29]
Wood has been a key material in construction since ancient times, so its preservation by coating has received much attention.[30] Efforts to improve the performance of wood coatings continue.[31][32][33][34][35]
Coatings are used to alter tribological properties and wear characteristics.[36][37] These include anti-friction, wear and scuffing resistance coatings for rolling-element bearings[38]
Other
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Other functions of coatings include:
Analysis and characterization
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Numerous destructive and non-destructive evaluation (NDE) methods exist for characterizing coatings.[55][56][57][58] The most common destructive method is microscopy of a mounted cross-section of the coating and its substrate.[59][60][61] The most common non-destructive techniques include ultrasonic thickness measurement, X-ray fluorescence (XRF),[62] X-Ray diffraction (XRD)[63] and micro hardness indentation.[64] X-ray photoelectron spectroscopy (XPS) is also a classical characterization method to investigate the chemical composition of the nanometer thick surface layer of a material.[65] Scanning electron microscopy coupled with energy dispersive X-ray spectrometry (SEM-EDX, or SEM-EDS) allows to visualize the surface texture and to probe its elementary chemical composition.[66] Other characterization methods include transmission electron microscopy (TEM), atomic force microscopy (AFM), scanning tunneling microscope (STM), and Rutherford backscattering spectrometry (RBS). Various methods of Chromatography are also used,[67] as well as thermogravimetric analysis.[68]
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The formulation of a coating depends primarily on the function required of the coating and also on aesthetics required such as color and gloss.[69] The four primary ingredients are the resin (or binder), solvent which may be water (or solventless), pigment(s) and additives.[example needed][70][71] Research is ongoing to remove heavy metals from coating formulations completely.[72]
For example, on the basis of experimental and epidemiological evidence, it has been classified by the IARC (International Agency for Research on Cancer) as a human carcinogen by inhalation (class I) (ISPESL, ).[73]
Processes
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Coating processes may be classified as follows:
Vapor deposition
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Chemical vapor deposition
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Physical vapor deposition
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Chemical and electrochemical techniques
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Spraying
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Roll-to-roll coating processes
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Common roll-to-roll coating processes include:
Physical
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See also
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References
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Further reading
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