Primer Coatings

Surface Treatments 13. Use zinc coating primer (Ensure clean surface for metal joining) 14. Spray on a silicone coating 21. Treat the surface with alkali (Alkali may affect the product s performance) 34. Try a polymer with a protective layer and heat to use (Troublesome as heating of the polymer is required) 56. Blow dry the surface (Not user friendly and time consuming)... 

Weight Benchmark Electrostatic Charge Coating Primer On Surface Use Functional groups Water Scavenger Use Water Absorbing Solvent... 

Fig. 1. Production of asphaltic coatings, primers, and cements. Typical asphalt has 18—100 mm penetration at 25°C typical solvent has a boiling range of...

Inhibitive Primers. The traditional primers are red lead and linseed oil, alkyd resins and zinc potassium chromate, proprietary epoxy, alkyd, urethane and latex systems with modified phosphate, borate and molybdate pigments. Chromate-based pigments, although in use in aircraft coatings, automotive primers and coil coating primers, are subject to environmental concern on the toxicity of hexavalent chromium which is likely to result in their replacement by innocuous products. 

Manufacturing-Coatings Primer One-Coat Paints Rust Preventatives... 

Maybe, the most important real application of ion-exchange pigments is their use in coil coating primers, mostly in combination with other anticorrosive pigments. 

Figure 28.2 Alclad 2024 SO2 Salt Spray Tested Panels (4 Weeks) A—chromate conversion coat with E-coat primer, B—chromate conversion coat with Deft primer, C— plasma polymer coat with E-coat primer total scanned area is 27 cm. ...

Plasma systems Plasma coatings Primer A Primer Al ... 

The practice of modifying epoxy resins with liquid polysulphides may not be new but the method of doing so has advanced significantly in recent years to the extent that these systems are being given serious consideration in the design of specialist coatings, primers, adhesives and encap-sulants (Morton International, undated a Rees and Wilford, 1994 Rees et al., 1994). 

Teflon PTFE [Thanavala], TM for a nonstick double coating (primer, top coat). 

MAJOR PRODUCT APPLICATIONS paints, coatings, primers, powder coatings, printing inks, pigments, diazo paper, toothpaste, tablets, powders, aerosols, ointments, creams, dry toner, sealants, rubber goods, adhesives, cable and wire, laminates, gel coats, body putties, defoamers, food, insecticides, lubricants, animal feeds, fertilizers, polishes, reproduction papers, waxes... 

MAJOR PRODUCT APPLICATIONS coatings, primers, ceramics, adhesives, abrasives, insulating materials, sealants, waUboards... 

Plastisol coating compound Polyurethane coatings Primers, paint Putty... 

Active surface Surface disposing of reactive properties (e.g., dipoles) due to mechanical, chemical or physical pretreatment or a coating (primer, activator). 

The flammability problem was resolved by converting to waterborne flow coat primers. The first waterborne appliance flow coat primer was installed on a dryer drum line in 1972 (9 ). The primer was a water-soluble epoxy-modified acrylic that had excellent hardness, abrasion resistance, and chemical resistance. 

A second generation of phenolic dispersions, patented by J. S. Fry (33). involved the post dispersion of phenolic resins in a mixture of water and water-miscible solvents. To conform with air pollution regulations, the solvent was held to 20 volume %, or less, of the volatiles. A heat-reactive phenolic resin dispersion (34) and a phenolic-epoxy codispersion have become commercially available based on the above technology. Supplied at 40-45% solids, these products, which have a small particle size (0.75-1.0 ym), are better film formers than the earlier dispersions. Used alone or in blends with other waterborne materials, corrosion-resistant baking coatings may be formulated for coil coating primers, dip primers, spray primer-surfacers, and chemically resistant one-coat systems. Products of this type are also tackifiers for acrylic latexes, and such systems have been employed as contact, heat seal, and laminating adhesives for diverse substrates. 

BajdiydroL [Miles] Polyurethane dispersion adhesion promoters in metal/plas-tic composites, textile and leather coatings, primers for rigid surface caodngs. 

Micobond. [Dexter Spec. Coatings] Primers, adhesives. 

OSO . piitox] Red and ydlow iron oxides syndiedc iron oxi fx coat-ii and plastics luttutal red iron oxide fa highly loaded coatings, primers, industrial maintenance finishes, exterior applies buildii prods., rubber, plastics. 

Uses. Electrodeposition coatings are used primarily for corrosion protection of steel, galvanized steel, and aluminum (e.g., in automobiles, agricultural machinery, steel furniture, and appliances). New areas of application include coil coating primers [3.127], beverage can coatings [3.128], and photocurable electrodeposition paints as photoresists [3.129]. 

Especially in the automotive industry, the appearance of a painted surface becomes more and more important. An automotive finish is a multi-layer system - E-coat, Primer, Topcoat, clear coat. Each layer can have several characteristics that influence the appearance of the final finish. The two major objectives of the paint manufacturer are to optimize the physical/chemical properties of the coating as well as to achieve an optimum paint appearance (wet, smooth look). The end use of the paint (trucks versus prestige cars), then determines the necessary degree of achievement. 

Chem. Descrip. Blend of modified nonionic fatty compds., hydrophobic silica, and aromatic-free medical wh. oils Uses Defoamer for odorless inner emulsion paints, maintenance coatings, primers, high-gloss emulsion paints, inks, syn. renderings, adhesives, aq. systems, coating colors in paper prod. 

Chem. Descrip. Aliphatic polyester PU disp. in water/toluene Uses Adhesion promoter in meial/plastic composite structures, textile and leather coatings, primers for rigid surface coatings Properties Milky wh. liq. sp.gr. 1.04 dens. 8.7 Ib/gal vise. 25-500 mPas pH 6.0-7.5 anionic Bayhydrol 850 W [Bayer AG]... 

Uses Binder for wh. and clear interior/exterior can coating systems, stamping enamels, capsule lacquers, foil lacquers, coil-coating primers Features Self-crosslinking exc. resist. good corrosion protection exc. 

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