Coating main

The mono- and disubstituted organotins considered here are used as stabilizers in PVC or as catalysts for the production of electrodeposited coatings (mainly in motor vehicle primers), sihcone rubbers, esterification and powder coatings, and polyurethanes, as well as for coating glass. 

In this study Ti02 was coated mainly at the exterior surface of granular activated carbon, and this Ti02-coated activated carbon was employed for the adsorption followed by photocatalytic decomposition of TCE. 

Sheet molding compound (SMC) is a composite material that has been used as an alternative to steel for more than 30 years. SMC consists of a glass-fiber-filled unsaturated polyester and vinyl ester resin that has been compacted into a sheet. These sheets are then placed into compression molds and formed into body panels, and these panels are then coated mainly by dual-cure coatings. ... 

The production processes used are (i) dip-coating for plates and tubes, (and ii) spin-coating, mainly for plates. 

Mixed-layer days gradual conversion. Kaolinite development. Detrita quartz coating mainly by authi-genic chlorite. Slight quartz overgrowths. Some non-ferroan carbonate cement precipitation or replacement. 

The above formulation is very general because the patent is for foam rubber backing for a composite material (woven or non-woven glass fabric coated with PVC). In this invention, fabric is coated mainly to hold woven fibers in position to provide a stable mesh for further processing and use. It should be noted that similar processes may also be used to manufacture mesh such as that used in window screens. 

Coil coatings are used to create intermediate coated products which are then used in an end market sector. The largest single end use for coil-coated products (60% by area coated) is in the building industry. This market can be further subdivided according to substrate coated, mainly galvanised or zinc-coated steel and aluminium, but a more useful sub-split is by coating type ... 

Application of coatings to FRP exposed top surfaces, i.e. those not in contact with a mould, may be required for similar reasons to using gel coats. These flow coats mainly differ in their method of application and consolidation. Flow coats should be applied if possible when the exposed surface is still at the green stage in order to obtain the highest adhesion if similar materials are being used to the main resin system. Adhesion to time-delayed exposed FRP surfaces can be low and considerable additional effort may be required in surface preparation to attain the required bond strengths. 

Chromate coatings add corrosion resistance and also act as a bond for paint and powder coatings mainly because of a thin, tightly adhering layer on the metal surface. In accelerated corrosion testing, the first sign of failure of the conversion coating is often a blackish appearance locally. 

The replacement of organic solvent by water poses a number of challenges to both resin and additives, particularly in the areas of film mechanical properties and durability. The low photochemical resistance of many polymers limits their use in coatings, mainly those designed for exterior applications such as exposure for long time to sunlight. Where... 

Opacity of a pigment is its ability to impart hiding power to the coating film in which it has been incorporated. Pigments render opacity to the coating mainly by two mechanisms ... 

In the first case, encapsulation of REM cations in the matrix of coatings, mainly sol-gel, is of particular interest. The purpose of the incorporation of snch cations in such coatings is to be later released, in a eontroUed way, upon eventual exposure to an aggressive enviromnent, precipitating in the active areas and blocking the corrosion reactions. Thus, this protective system attempts to balance the barrier properties supphed by the coating itself with the active corrosion protection role of the eontained speeies. 

Several factors influence the grade of mechanical protection afforded by the sol-gel ceramic layer (1) composition and structure of the coating, (2) inherent mechanical properties of the substrate and coating, (3) residual stresses in the coating mainly formed during its thermal consolidation step [39], and (4) coating thickness and adhesion strength to the substrate. 

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