Exam 2 Flashcards
_______ enamel consists of a solvent blend of binder and pigment materials.
Acrylic Enamel
Basecoat/clearcoat is a ___-______ paint system in which the colour effect is given by a highly pigmented basecoat. Gloss and durability are given by clearcoat.
two-stage
What are the PRIMARY colours?
Red Yellow Blue
The easiest way to deal with a over pour is……
Do not let it happen
___________ enamels are used for automotive refinishing.
Polyurethane
A paint hardener is also referred to as a ______ or _______.
catalyst or activator
A _________ is a light source that attempts to duplicate the full spectrum of natural daylight.
Spectralight
Graduated containers are usually clear or translucent containers with graduated scales and ratios painted on the sides.
True or False
True
Head on (90degrees) Flop (__) Side Tone (__)
45
10
Lights may also have a _____ rating to describe their brightness.
Lumen
-
Measuring Sticks
Graduated containers
The first step in solving a colour problem is being able to ________ the colour.
Describe
The first step in colour matching is to select the proper topcoat from the paint _____ book
Chip
By adjusting the colour on the TV, you are adjusting ______, which is the strength, richness or purity of the colour
Chroma
If the light source changes, the objects colour changes; this is called __________
Metamerism
_______ is recommended after each ingredient is added to avoid conditions such as _______.
Stirring
_____ is also known as resin and is the principle film-forming part of a paint system into which all other film-forming ingredients are added.
Binder
A common measure is _ oz of paint per panel and _ oz of paint per blend.
6
3
______ enamel was a popular refinishing material for over 40 years.
Alkyd enamel
Solvent is also referred to as _______ _____.
Transfer Medium
A paint formula indicates the amount of each ______, as a weight, that is required to produce a specific colour of paint.
Toner
A formula is a precise mixture of _______, or individual colours that will yeild a specific paint colour.`
Toners
Automotive paint serves two purposes which are?
Protection and Decoration
A ______ coat keeps more of the aluminum flakes near the top of the paint film.
Light
Compared to daylight, incandescent light appears to contain more _______ and ____.
Yellow and Red
_______ paint is made up of water soluble resins and co-solvents such as alcohols and miscible solvents.
Polyester
What are the two most important properties of a solvent?
Solvency (ability to dissolve a film former or resin) and Volatility (solvents evaporation rate)
The colours of the daylight colour spectrum are easily remembered with ____ G. _____
Roy G. Biv
It is not recommended to agitate toners continually all day. This causes ______ of metallics.
Shearing
Adjusting the ___ on a television set could make blue seem green.
Hue
________ enamels dry by evaporation of the reducers and by a chemical reaction between the two principle base components that harden or cross-link the paint film.
Urethane
The most accurate way to mix paint is by _______.
Weight on a scale.
What are the three basic types of exterior topcoat finishes?
Lacquer, Enamel and waterborne
Pigment particle size affects ______ ability, while pigment shape affects strength.
Hiding
________ are the ingredients that are responsible for the colour of the paint.
Pigments
______-_____ lumens is recommended for booth lights or sun guns.
3000-3500
What are the two types of water based paints?
Latex and Polyester Paints
When the eye sees a coloured object, that object has ________ all the light except for the colour it appears to be.
Absorbed
______ paint is made up of polymers, or resins and co-solvents
Latex
The best way to evaluate a colour match is to make the evaluation under the best possible _______ conditions.
Daylight
Moderately ________ ______ sky is the best conditions to view a colour.
Overcast North Sky
Most hardeners used in automotive coatings have a usable shelf life of only _ days after opening.
7
A ______ coat of metallic colour will distribute aluminum flakes evenly throughout the paint film.
Medium
Agitation of water based painted is needed.
True or False
False, It is not as critical to mix becuase the solids stay suspended for longer periods of time.
What are the three main paint systems we use today?
Single-stage, two-stage and tri-stage
The year of a vehicle can be determined by what digit on the VIN?
10th
In order to see colour you need
an object
a light source
a means of viewing colour
__________ is added to paint to lower its viscosity or thickness so that it flows through and out of the spray gun properly.
Solvent
As the water evaporates, the pigments ______ to form the paint film.
Coalesce
When primary and secondary colours are mixed together, __________ or ___________ colours are formed.
Intermediate or Complementary
________ includes all methods of conversion: oxygen,heat catalyst and cross-linking.
Convertable
A ____ coat of metallic colour allows heavy aluminum flakes to sink to the bottom of the paint film.
Wet
Colours at the OEM level start as sample panels called _____ _______ for each vehicle colour.
Colour Standards
What are the two most vital variables that affect painting a vehicle?
Temperature and Humidity
Weights can be listed as _________ or ___-_________.
Cumulative or Non-Cumulative
_________ reflows when exposed to heat or solvent.
Thermoplastic
Is it okay to use a measuring stick with a container that has tapered sides?
No, because this will result with an incorrect ratio.
What code does Mercedes use if they applied a scratch resistant clear?
C
Natural daylight between the hours of __am and _pm is the ideal light for matching or evaluating colour.
10am and 2pm
Compared to daylight, fluorescent light appears to contain more _______.
Violet
The procedure for mixing solvent based paint is to turn the intermix machine for a minimum of __ minutes.
15
By mixing any two primary colour together, a _______ colour is produced.
Secondary
A viscosity test should be performed at _______ temperature .
Booth
Paint _______ are ingredients added to modify the performance and characteristics of the paint.
Additives
Automotive finishes that can be places in Non-convertable class are ________.
Lacquers
Paint is formulated using the same principles and contain specific ratios of four ingredients, name them.
Pigment
Binder
Solvent
Additives
___________ colour combinations are unlimited.
Intermediate
Any thick, ____ or _____ toners should not be used.
Gelled or caked
_______ a colour is the process of identifying a paint colour in a graphic way based on value, hue and chroma.
Plotting
Colour blindness affects a significant number of people, approximately _ to _% of the male population and . to _% of women.
7-10%
0.4-1%
_____-____ enamel paint has a gloss or shine without the use of clearcoat.
Single-stage
Enamels dry in two stages: through ______ of their solvents and by the _______ of their binder.
Evaporation
oxidation
____ ____ indicate which ingredients to use, as well as the ratios and proper sequence to be followed when adding ingredients.
Tech sheets
General Motors used a SPID label in order to find the paint code. What does SPID stand for?
Service Parts Identification Decal
_______ are the most volatile part of paint.
Solvents
The brightness adjustment on a TV set controls the _____ or lightness or darkness of the screen.
Value
Colour temperature is measured in ______.
Lamps recommended for colour evaluation have colour temperatures of _____k to _____k.
Kelvins
5000-7500 Kelvins
______ is not a primary colour, but is considered a major colour on the colour wheel and consists of all three primary colours.
Green
When using a base coat solvent containing a stabilizer, be sure to ____ or ______ the stabilizer prior to usage.
Shake or Agitate
Whats the longest time you should look at a colour before colour fatigue affects you.
60 seconds
When evaluating a colour, the sequence ______, ___ and _______.
Value, Hue, Chroma
The colours that are present in a light source are described as its ______ ________.`
Colour Spectrum
Fish eye eliminator should never be used in _______ or ________.
Basecoats or undercoats
Select a _______ or _______ according to job size, temperature, humidity and type of material.
Solvent or Hardener
One of the most accurate ways to test RTS materials is to use a ________ ___.
Viscosity Cup
_________ do not reflow even when exposed to heat or solvent.
Thermosets
What are the two types of paint solvents?
Reducers and Thinners
______ ________ _____ (CRI) is the evaluation oh how colours appear under given light source. A numerical scale _ to ___ is used to compare the spectrum of an artificial light to the spectrum of outdoor daylight
Colour rendering index
0-100
If a second over pour happens the mix should be ________
discarded
The head-on match is _______ important. Why?
Least, because you cannot blend a colour with a bad side-tone.
Limit your hits of various tints in a formula to no more than __% of the total volume being tinted.
10%
Generally, colours are corrected in this order; ______, ___ and ______.
Value, Hue and Chroma
The _____ Metallic, the less intense or chromatic a colour will appear.
More
What provides the pearl luster effect on the flakes of mica?
Titanium Oxide
