UNITIZED STRUCTURAL BODY REPAIR- EXAM NEWEST
ACTUAL 2025/2026 QUESTIONS WITH SOLUTIONS
VERIFIED/GRADED A+
Wax and Grease Remover - ----Answers----Used after soap
and water. Removes tar, wax, silicones, and other petroleum
based contaminants. Clean cotton rag and wipe dry with a
second rag.
Metal Conditioners - ----Answers----Acid clean and etch the
surface for the best possible adhesion of conversion coatings
and primers. Do NOT use in enclosed areas where they can not
be washed away.
Conversion Coatings - ----Answers----Follows the metal
conditioners and lays down a zinc phosphate layer that
maximizes primer adhesion as well as preventing rust "creep"
under the painted surface. Not to be used in enclosed sections.
Epoxy Primers - ----Answers----Provides a level of
corrosion protection closest to that of the original E-Coat
primer. Must be applied soon after the cleaning, etching and
conversion steps.
Induction Period - ----Answers----Some epoxy primers need
to sit for a time after mixing.
, Self Etching - ----Answers----Eliminates the need for
conditioners and conversion coatings. Must be top coated with
a paint finish or anti corrosion compound.
Weld-Thru Primers - ----Answers----Restores the zinc
protection that is burned away welding. Bonds tightly to bare
metal and flows back into the weld site as it cools. Primers
and seam sealers do not adhere to it so it must be removed.
Seam Sealers - ----Answers----Need to be replaced in any
location that the manufacture applied them to. Same as what
was used, and should be applied after the epoxy or self etching
primers.
Wax and Petroleum Based Anti-Corrosion Compounds - ----
Answers----Applied to all enclosed sections and underbody
surfaces.
Sacrificial Corrosion - ----Answers----Seal sacrifices itself
against the elements.
Galvanic Corrosion - ----Answers----When 2 metals react to
each other. Replace any special washers, films, gaskets to
separate the two metals.
Structural Parts - ----Answers----Parts of the unibody that
manage collision energy. They provide support for mechanical
components and provide attachment points. (Hoods, Doors,
Deck Lids, Etc.) All are structural to a degree.
ACTUAL 2025/2026 QUESTIONS WITH SOLUTIONS
VERIFIED/GRADED A+
Wax and Grease Remover - ----Answers----Used after soap
and water. Removes tar, wax, silicones, and other petroleum
based contaminants. Clean cotton rag and wipe dry with a
second rag.
Metal Conditioners - ----Answers----Acid clean and etch the
surface for the best possible adhesion of conversion coatings
and primers. Do NOT use in enclosed areas where they can not
be washed away.
Conversion Coatings - ----Answers----Follows the metal
conditioners and lays down a zinc phosphate layer that
maximizes primer adhesion as well as preventing rust "creep"
under the painted surface. Not to be used in enclosed sections.
Epoxy Primers - ----Answers----Provides a level of
corrosion protection closest to that of the original E-Coat
primer. Must be applied soon after the cleaning, etching and
conversion steps.
Induction Period - ----Answers----Some epoxy primers need
to sit for a time after mixing.
, Self Etching - ----Answers----Eliminates the need for
conditioners and conversion coatings. Must be top coated with
a paint finish or anti corrosion compound.
Weld-Thru Primers - ----Answers----Restores the zinc
protection that is burned away welding. Bonds tightly to bare
metal and flows back into the weld site as it cools. Primers
and seam sealers do not adhere to it so it must be removed.
Seam Sealers - ----Answers----Need to be replaced in any
location that the manufacture applied them to. Same as what
was used, and should be applied after the epoxy or self etching
primers.
Wax and Petroleum Based Anti-Corrosion Compounds - ----
Answers----Applied to all enclosed sections and underbody
surfaces.
Sacrificial Corrosion - ----Answers----Seal sacrifices itself
against the elements.
Galvanic Corrosion - ----Answers----When 2 metals react to
each other. Replace any special washers, films, gaskets to
separate the two metals.
Structural Parts - ----Answers----Parts of the unibody that
manage collision energy. They provide support for mechanical
components and provide attachment points. (Hoods, Doors,
Deck Lids, Etc.) All are structural to a degree.
