Coating Voab

Question 1

A treatment for the removal of rust and mill scale from steel by immersing it in an acid solution containing an inhibitor. Pickling should be followed by thorough washing and drying before painting.

Answer 1

Acid pickling:

Question 2

A process of atomizing paint by forcing it through an opening at high pressure. This effect is often aided by flashing (vaporization) of the solvents, especially if the paint has been previously heated.

Answer 2

Airless spraying:

Question 3

(1) Having properties of an alkali. (2) Having a pH greater than 7.

Answer 3

Alkaline:

Question 4

A coating consisting of a mixture of metallic aluminum pigment in powder or paste form dispersed in a suitable vehicle.

Answer 4

Aluminum paint:

Question 5

A film on a metal surface resulting from an electrolytic treatment at the anode.

Answer 5

Anodic coating:

Question 6

A coating, composed wholly or partially of an anodic metal (in sufficient quantity to set off electrochemical reaction), which is electrically positive to the substrate to which it is applied.

Answer 6

Anodic metallic coating:

Question 7

Forming a conversion coating on a metal surface by anodic oxidation; most frequently applied to aluminum.

Answer 7

Anodizing:

Question 8

A coating used for preventing the corrosion of metals which has been specially formulated to prevent the rusting of iron and steel.

Answer 8

Anticorrosion paint or composition:

Question 9

The nonvolatile portion of the liquid vehicle of a coating.

Answer 9

Binder:

Question 10

Asphalt or tar compound used to provide a protective finish.

Answer 10

Bituminous coating:

Question 11

Cleaning and roughening of a surface (particularly steel) by the use of a metallic or nonmetallic abrasive that is propelled against a surface by compressed air, centrifugal force, or water.

Answer 11

Blast-cleaning:

Question 12

The formation of swellings on the surface of an unbroken paint film by moisture, gases or the development of corrosion products between the metal and the paint film.

Answer 12

Blistering:

Question 13

Whitening and loss of gloss of a usually organic coating caused by moisture.

Application of a coating by means of a brush.

Answer 13

Blushing:

Brushing:

Question 14

Paint supplied in dry powder form, based essentially on Portland cement, to which pigments are sometimes added for decorative purposes. This dry, powdered paint is mixed with water immediately before use.

Answer 14

Cement paint:

Question 15

A coating developed on a metal surface by a high-temperature diffusion process (as carburization, calorizing, or chromizing).

Answer 15

Cementation coating:

Question 16

A protective or decorative coating that is produced deliberately on a metal surface by reaction of the surface with a chosen chemical environment.

Answer 16

Chemical conversion coating:

Question 17

A coating in which the binder or vehicle is a combination of coal tar and epoxy resin.

A coating in which the binder or vehicle is a combination of coal tar with a polyurethane resin.

Answer 17

Coal-tar epoxy coating:

Coal-tar urethane coating:

Question 18

A number of coats separately applied in a predetermined order at suitable intervals to allow for drying or curing.

Answer 18

Coating system:

Question 19

A liquid, liquefiable, or mastic composition that has been converted to a solid protective, decorative, or functional adherent film after application in a thin layer. A coating is an electrical insulating covering applied to a metal surface as passive protection against external corrosion.

Answer 19

Coating:

Question 20

Two or more paints or varnishes that can be mixed without producing any undesirable effects such as precipitation, coagulation, or gelling are said to be compatible. Different coats of paint that can be associated in a painting system or other coating systems without producing undesirable effects are also compatible.

Answer 20

Compatible:

Question 21

A coating consisting of a compound of the surface metal, produced by chemical or electrochemical treatments of the metal.

Answer 21

Conversion coating:

Question 22

The separation of metallic material from an attacking medium by paint or coating.

Answer 22

Corrosion protection:

Question 23

The temperature at which moisture will condense.

Answer 23

Dew point:

Question 24

instruments consist of magnetic gauges that measure the thickness of a dry film of a nonmagnetic coating applied to a magnetic substrate.

Answer 24

DFT measurement:

Question 25

A chromate conversion coating produced on magnesium alloys in a boiling solution of sodium dichromate.

Answer 25

Dichromate treatment:

Question 26

The application of metallic coating, the chemical composition of which was modified by diffusing this at the melting temperature into the substrate.

Answer 26

Diffusion coating:

Question 27

The time required for an applied film of coating to reach the desired stage of cure, hardness, or nontackiness.

Answer 27

Drying time:

Question 28

Severe loss of ductility of a metal (or alloy).

Answer 28

Embrittlement:

Question 29

A substance composed of a specially processed coal-tar pitch or bitumen, combined with an inert mineral filler.

Answer 29

Enamel:

Question 30

Destruction of metals by the abrasive action of moving fluids accelerated by the presence of solid particles in suspension.

Answer 30

Erosion:

Question 31

Test the adhesion of the coatings after application. The final coat in a painting system.

Answer 31

Field adhesion testing: Finish coat (topcoat):

Question 32

The impingement of an intensely hot flame to the surface of structural steel, resulting in the removal of mill scale and the dehydration of any remaining rust, leaving the surface in a condition suitable for wire brushing, followed by the immediate application of paint.

Answer 32

Flame cleaning:

Question 33

Thermal spraying in which coating material is fed into an oxyfuel gas flame, where it is melted.

Answer 33

Flame spraying:

Question 34

Material used during welding, brazing, or braze welding to clean the surfaces of joints, prevent atmospheric oxidation, and to reduce impurities.

Answer 34

Flux:

Question 35

The application of a coating of zinc to steel by a variety of methods.

Answer 35

Galvanizing:

Question 36

To produce a zinc-iron alloy coating on iron or steel by keeping the coating molten after hot-dip galvanizing until the zinc alloys completely with the base metal.

Answer 36

Galvanneal:

Question 37

A discontinuity in a coating (such as porosity, cracks, etc.) that allows areas of base metal to be exposed to any corrosive environment that contacts the coated surface.

Answer 37

Holiday:

Question 38

The paint intended to be used between the primer and topcoat in a paint system.

Answer 38

Intermediate coat (undercoat):

Question 39

Leakage resistance of pipe or resistance of pipe radially to remote earth.

Answer 39

Leakage or coating resistance:

Question 40

Includes hand cleaning and power tool cleaning.

Answer 40

Manual cleaning:

Question 41

The person, firm, or corporation that manufactures and provides the coatings under the provisions of relevant standard.

Answer 41

Manufacturer:

Question 42

Application of a spray coat of metal (usually zinc or aluminum) onto a prepared surface.

Answer 42

Metal spraying:

Question 43

One or more layer of metal on a steel base (base material).

Answer 43

Metallic coating:

Question 44

the term used for the surface oxides produced during hot rolling of steel. It breaks and flakes when the steel is flexed and paint applied over it may fail prematurely.

Answer 44

Mill scale:

Question 45

Being or composed of hydrocarbons or their derivatives, or matter of plant or animal origin.

Answer 45

Organic:

Question 46

Any pigmented liquid, liquifiable, or mastic composition designed for application to a substrate in a thin layer that is converted to an opaque solid film after application. Used for protection, decoration, or identification, or to serve some other function.

Answer 46

Paint:

Question 47

A coating (usually green) that forms on the surface of metals, such as copper and copper alloys, exposed to the atmosphere.

Answer 47

Patina:

Question 48

Forming an adherent phosphate coating on a metal by immersion in a suitable aqueous phosphate solution.

Answer 48

Phosphating:

Question 49

A form of chemical and electrolytic removal or loosening of mill scale and corrosion products from the surface of a metal in a chemical solution (usually acidic). Electrolytic pickling can be anodic or cathodic, depending on the polarization of metal in the solution.

Answer 49

Pickle / pickling:

Question 50

A solution, usually acid, used to remove mill scale or other corrosion products from a metal.

Answer 50

Pickle:

Question 51

Deposition on critical areas of metal coatings resistant to wear and abrasion, by means of a high-velocity, high-temperature ionized inert gas jet.

Answer 51

Plasma plating:

Question 52

A thermal spraying process in which the coating material is melted with heat from a plasma torch that generates a nontransferred arc: i.e., molten coating material is propelled against the base metal by hot, ionized gas issuing from the torch.

Answer 52

Plasma spraying:

Question 53

Usually refers to the chemical treatment of unpainted metal surface before painting.

Answer 53

Pretreatment:

Question 54

The first complete coat of paint of a painting system applied to a surface.

Answer 54

Primer:

Question 55

The rapid cooling of metals (often steel) from a suitable elevated temperature. This generally is accomplished by immersion in water, oil, polymer solution, or salt, although forced air is sometimes used.

Answer 55

Quenching:

Question 56

The component of either a liquid or solid solution that is present to a greater or major extent; the component that dissolves the solute.

Answer 56

Solvent:

Question 57

A method of application in which the coating material is broken up into fine mist that is directed onto the surface to be coated.

Answer 57

Spraying:

Question 58

Any method of treating a surface to get it ready for painting.

Answer 58

Surface preparation:

Question 59

A primer containing solvent and whose base consists of resins and synthetic plasticizers.

Answer 59

Synthetic primer:

Question 60

A group of coating or welding processes in which finely divided metallic or nonmetallic materials are deposited in a molten or semimolten condition to form a coating. The coating material may be in the form of powder, ceramic rod, wire, or molten materials.

Answer 60

Thermal spraying:

Question 61

An intermediate coat used to bond different types of paint coats; used to improve the adhesion of succeeding coatings.

Answer 61

Tie coat:

Question 62

The process of coating metal with a very thin layer of molten solder or brazing filler metal.

Answer 62

Tinning:

Question 63

Blast-cleaning of metal using high-velocity water with or without the addition of an abrasive.

Answer 63

Water-blasting: