Use Repair Materials And Equipment Apply Refinishing Flashcards by Anthony Almazan

Prolong the drying time

Drying retarders

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Increase metallic sparkle

Flattening agents

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Reduce curing time

Drying accelerator

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Prevent cracking

Flex additives

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A paint strainer is a paper funnel with

Nylon mesh
Wire mesh opening
Cheesecloth covered openings

Nylon mesh openings

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A sanding block may be used by holding it parallel to the contour of the panel and moving at a _______ angle

70
30
Right
45

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A viscosity cup measures

Volume
Speed
Ratio
Weight

Speed

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All describe guide coat EXCEPT

Is matched to the colour of the undercoat

Used to identify high and low spots

May be sprayed on

May be a fine powder

Is matched to the colour of the undercoat.

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All describe mixing sticks EXCEPT

Wood or metal can be used

Available from most paint makers to support their mixing formula requirements

Have calibrated measuring scale for all parts including additives

Are used with containers that have parallel sides and bottom that is flat

Wood or metal can be used

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Why should tints be shaken before being put on the mixing bank

To aid in correct colour matching

To ensure the life is securely fastened

To build up static charge in the material

To avoid paddle damage from solid material at the bottom of the can

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The general procedure when mixing base coat is to

Identify colour formula, mix base colour using intermix system, add reducer, mix and strain

Mix base colour using intermix system, identify colour formula, add reducer, mix and strain

Identify colour formula, add reducer, mix base colour using intermix system, mix and strain.

Identify colour formula, mix base colour using intermix system, add reducer, mix and strain.

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Tints on the mixing bank of an intermix system should be agitated

Once per day
Once per week
Twice per day
Twice per week

Twice per day

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What is the typical film thickness for single-stage, BC/CC, and multi stage finishes

2mil
3mil
5mils
8mils

5mils

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Primer sealer or sealer should not be applied in areas where topcoat will be blended

True
False

True

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Refinished aids to hide imperfections

True
False

False

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All describe spray out panels EXCEPT

To aid in developing colour sample

To show how colour will appear

To duplicate spraying condition

To show the effects of the spraying technique

To aid in viscosity adjustments

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A spray out card helps to determine the number of refinish coats required to achieve full hiding

True
False

True

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Edging

Should be avoided
Aids in complete paint coverage
Is done after parts are installed
Is a masking technique

Aids in complete paint coverage

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A tach cloth

Is cheesecloth covered with non dying varnish

Should only be used surfaces being refinished

Should be used on panel starting from bottom top top

Should be used with excessive pressure to remove debris

Is cheesecloth covered with non drying varnish

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A single stage finish typically requires

3-4 light coats
2-4 medium coats
A clear coat
1-2 full wet coat

2-4 medium coats

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When applying a BC/CC finish paint makers typically recommend

1-3 mils or base coat followed by 1-2 mils of clearcoat

1-2 mils or base coat followed by 2- 3 mils of clearcoat

2-3 mils or base coat followed by 1-2 mil of clearcoat

2-3 mils or base coat followed by 2-3 mils of clearcoat

1-2 mils or base coat followed by 2-3 mils of clearcoat

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Base coat must dry for at least 8 hours prior to applying clear coat

True
False

False

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In a multi stage finish, the midcoat or intermediate coat

Must match the original base coat colour

Is a translucent colour or pearl coat

Lightens, as more is applied

A let down panel cannot be used

Is a translucent colour or pearl coat

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When performing panel repair refinish operation the finish is blended within the panel

True
False

False

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Requires blending into the existing finish

Spot repair

Applies colour to the panel edges

Banding

Used break lines to limit the size of the repair area

Zone refinishing

Refinishing a complete part

Panel repair

During a complete vehicle refinish be sure to overlap at panel gaps True False

False

All describe blending EXCEPT - tricks the eyes into seeing one colour - requires perfect colour mixing - allows some of the original finish to show through - is applying colour in stepped out stages

Requires perfect colour mixing

Blending does not work well on large flat areas True False

True

All are consideration for blending EXCEPT paint makers typically recommend recommendations Areas shadowed by objects areas with multiple contours The existing finish

The existing finish

A blending solvent causes the dry edge to flow out or melt into the original finish True False

True

Blending solvent for a single stage finish Should be feathered out across a large area May contain a type of clearcoat resin Is applied in a straight line May be the same solvent used to reduce base coat

May contain a type of clearcoat resin

When blending for a BC/CC finish both coating are blended True False

False

When blending the base coat blending solvent that applied to the blend area prior to the base coat May cause delamitation of the base coat Must contain clear coat resin May act as an adhesion promoter Will void the paint makers warranty

May act as an adhesion promoters

When reverse blending Each coat extends beyond the first coat Blending solvent is applied prior to the base coat The first coat extends to the farthest point of the blend Blending solvent is applied to the panel edges

The first coat extends to the farthest point of the blend.

Triggering off the spray gun only after the spray pattern is parallel to the panel avoids Paint build up Over spray Delamination A halo- effect

A halo effect

If more than one panel is being painted and one requires a flex additive A special sealer can be substituted Use 2 spray gun Both should receive the flex additive The flex additive can be disregarded

Use 2 spray guns

All apply to refinishing interior EXCEPT colours may be identified in the vehicle accessory labels May require heating a part to remove mould release agents Finishes in the drivers sight line should be flat or non gloss Airbag modules should be refinished using a flex additive

Airbag modules should be refinished using a flex additive

To maintain corrosion protection epoxy primer and or anti corrosion compound should be used In wheel well areas To coat undercarriages For enclosed areas To replace chip resistant coatings

For enclosed areas

Seam sealers Are used to keep out moisture, noise and contaminants May be thin or heavy bodied flexible or self leveling A B Both Neither

Both

Chip resistant coating acts as an energy absorber True False

True

All are typical causes of finish contaminant EXCEPT open masking paper folds A static charge on the vehicle Improper use of a tack cloth Inadequate breathing apparatus

Inadequate breathing apparatus

All contribute to poor hiding EXCEPT a spray out panel Spray technique Product information sheet Film thickness

A spray out panel

Contaminants in the paint film may be corrected During the refinishing process After the refinishing process A B Both Neither

Both

Improper management for refinishing materials stock contribute to Seediness Dry spray Lifting or wrinkling Fisheye

Seediness

Refinished problems can result from - A Improper preparation - B Contamination - C Problems with the spray equipment - D Improper drying and curing - E A and B - F all of the above

All of the above

If fisheye eliminating additive is used, it may be used in all following coating application True False

True

Runs and sags may be corrected by Washing off the surface during paint application Sand and polish Sand and refinished All of the above

All of the above

Excessive flash time

Orange peel

Silicone or oil contamination

Fisheyes and cratering

Incompatible with materials

Lifting or wrinkling

Air pressure to high

Dry spray

Uneven spray pattern

Mottling or streaking

Trapped air or moisture

Blistering

Inadequate flash time

Runs or sags

All describe lifting or wrinkling EXCEPT excessive flash or dry time can cause Affected area must be removed to a solid substrate Sealer helps to prevent Shrivelling or swelling of wet refinish material

Excessive flash or dry time can cause

All describe mottling or streaking EXCEPT. Material being applied too dry Floating metallic Floating pigment Uneven spray pattern

Material being applied too dry.

If blistering happens due to overheating during force cutting stripping to bare metal may be required to correct the problem True False

True

All describe dry spray EXCEPT Using a travel speed that is too fast Spray dust that does not dissolve into the finish Using reducer that is too slow

Using reducer that is too slow

Most likely problem when refinishing over lacquer primer surfaces Shrinking or splitting Blistering Loss of gloss Solvent popping

Shrinking or splitting

All describe paint cracking EXCEPT Corrected by sealing and refinishing Can be caused by sudden extreme temperature changes May appear as crows foot or star pattern

Corrected by sealing and refinishing

Sanding undercoats before they have thoroughly dried

Sandscratch swelling

Excessive spot putty use or thickness

Shrinking or splitting

Excessive film thickness

Paint cracking

Not using the correct amount of activator

Poor hardening

Wrong reducer used or over reduction

Loss of gloss

Insufficient flash time prior to applying additional coats

Solvent popping

Chalking refers to the loss of gloss after a finish ages True False

True

All describe solvent popping EXCEPT May be caused by solvents that were trapped in the finish Corrected by stripping to bare metal are refinishing May by cause by surface. Posture that was trapped in the finish

Corrected by stripping to bare metal are refinishing

Improper surface cleaning and preparation can cause poor hardening True False

True

More or less chromatic

Saturation

Redder, greener, blue, or yellower

Wrong hue

Too light or dark

Value is off

All describe paint oxidation EXCEPT Cause by UV rays and or insufficient film thickness Correct by polishing with the most aggressive polish first Also called fading Loss of gloss and may appear white and powdery on the surface

Correct by polishing with the most aggressive polish first

Peeling and adhesion failure can be a result to masking a part instead if removing it True False

True

It is not necessary to completely remove corrosion prior to refinishing True False

False

Tape tracking may be removed by buffing True False

True

All describe contour mapping EXCEPT corrected by wet sanding and polish An outline of the body filler May require removal of the affected area and refinishing A feather edge that has shrunk or swelled

corrected by wet sanding and polish

All may cause staining EXCEPT - a chemical spilled on the finish - Finger prints on surface being refinished - Bird dropping and tree saps - incorrectly mixed base coat - road film

Incorrectly mixed base coat

Improper surface preparation

Adhesion failure

Moisture in the compressed air supply

Corrosion under the finish.

UV exposure

Oxidation

Incorrect masking technique

Overspray

Pigment from original finish bleeding through

Stain

A hard tape line during priming

Contour mapping

Trapping solvent under masking tape

Tape tracking

Clear coat is used in specialty area that may be Exposed to UV damage Exposed to engine heat Exposed to wind and rain Visible when a door is open

Exposed to UV damage