AUTOBODY REPAIR DEFINITIONS

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

Q

R

S

T

U

V

W

X

Y

Z

S

SAG:

• Same as RUN.

SEALER:

• Material applied before topcoat to increase color holdout and uniformity of color and adhesion.

SECONDARY COLORS:

• Mixture of two primary colors to produce a second color. Example: red and yellow make orange.

SEEDY:

• Rough or gritty appearance of paint due to very small insoluble particles.

SETTLING:

• See PAINT SETTLING.

SHADE:

• A variation of color. Example 1: a blue shade blue. Example 2: light blue versus dark blue.

SHRINKAGE:

• Tightening or shrinking of paint film as solvent evaporates.

SIDETONE "FLOP":

• The color of a finish when viewed from a side angle.

SINGLE STAGE:

• A one-step paint procedure of applying color, protection and durability in one application. No clear is used.

SIPHON FEED GUN:

• Any paint gun which uses air flowing over an opening to create a vacuum to draw paint up a tube to be atomized.

SOLIDS:

• The part of the paint, pigments and resin which do not evaporate.

SOLID COLOR:

• Colors that contain no metallic flakes in the pigment portion of paint. These colors have opaque pigmentation or properties in the paint film.

SOLUTION:

• A homogeneous mixture of two or more dissimilar substances.

SOLVENT CLEANER:

• Solvent-based cleaning material used to remove contamination from surfaces prior to refinishing.

SOLVENT POP:

• Blisters in the surface of a film caused by trapment of solvent.

SPLITTING:

• The breaking open of an undercoat or topcoat into long cracks resembling the look of a "dry river bottom".

SPOT REPAIR:

• The process of repairing only a portion of a panel or vehicle.

SPRAY PATTERN:

• Spray from the paint gun adjusted from a very small, almost round pattern to a wide, flat, somewhat oval shape.

STABILIZER:

• Special resin-containing solvent used in basecoat color to lower viscosity helping in metallic control and recoat times.

STRENGTH OF COLOR:

• The hiding ability of a pigmented toner or colorant.

SURFACER:

• See PRIMER-SURFACER.

top

T

TACK COAT:

• Usually the first light coat of paint is allowed to set and become sticky before additional coats are applied.

TACK FREE:

• Time in the drying of a paint film where it is not sticky but not completely cured.

TACK RAGS:

• A sticky cheese cloth used to remove dust before painting.

TEXTURE:

• The amount of orange peel or roughness in a dried paint film.

THERMOSPLASTIC PAINT:

• Material which with the addition of heat becomes soft and pliable, returning to solid when cooled, i.e., lacquer.

THERMOSETTING PAINT:

• Type of paint that becomes hard when heated and thereafter is cured, i.e., enamels, urethanes.

THINNER:

• Solvent material used to reduce the viscosity of lacquers.

THREE-STAGE SYSTEM:

• A three-step paint procedure. First a highly pigmented color coat is applied to achieve hiding, referred to as the groundcoat. This groundcoat is then followed by the intermediate coat. The intermediate coat is applied using a transparent mica in a number of single coats until the desired effect is obtained. This finish requires a clearcoat for gloss protection and durability, which is applied last.

TINT:

• A pure toner used for the changing of another color.

TINTING:

• The act of changing one color by adding another.

TITANIUM DIOXIDE:

• A commonly used white pigment with high hiding power.

TONERS:

• Made with ground pigments, solvent and resin. Used in the intermix system to produce colors.

TOP-COAT:

• The pigmented color portion of the painting process.

TOUGHNESS:

• The ability of a finish to withstand abrasion, scratches, etc.

TRANSFER-EFFICIENCY:

• The ratio in a percentage of the amount of paint actually applied to a surface compared to the amount of material used.

TWO-COMPONENT:

• A paint material which must have a catalyst or hardener to react.

top

U

ULTRA VIOLET LIGHT:

• The part of the electromagnetic spectrum which can cause fading of paint. Located just beyond the visible part of spectrum.

UNDERCOAT:

• The coatings below the top color coat that help in adhesion and corrosion resistance

top

V

VISCOSITY:

• Determined by allowing a measured amount to flow through an orifice and measuring the time it takes for this amount to flow.

V.O.C. (VOLATILE ORGANIC COMPOUND):

• Any organic compound that evaporates and subsequently participates in atmospheric photo-chemical reaction; that is, any organic compound other than those that the administrator designates as having negligible photochemical activity.

top

W

WATERBORNE COATING:

• A coating containing more than five percent water in its volatile fraction.

 

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

Q

R

S

T

U

V

W

X

Y

Z