Corrosion Protection

Technician A says that sanding may be used to clean metal surfaces. Technician B says that wax and grease remover may be used to clean metal surfaces before applying corrosion protection.

• A only

• B only

• Both

• Neither

Which of these is true about OEM replacement parts.

• Should be coated with a primer sealer

• Backside areas should be scuffed before applying topcoat.

• Remove as much E-coat as possible around damaged areas

• Parts with E-coat do not require cleaning

Technician A says that when sanding Aluminum, do not use sanding grits courser than 80 grit. Technician B says that after cleaning the oxide off the aluminum, it may need to be cleaned again if it sits too long un-coated.

• A only

• B only

• Both

• Neither

Which of these is true about weld-through primer?

• Should be kept away from heat.

• Use only when GMA (MIG) welding

• Designed to be an undercoat for basecoat

• Some are copper coated

All of these are true about epoxy primer except?

• is available as a two part aerosol

• may be recommended under plastic filler

• may be require an etching base

• contains a phosphoric acid

Technician A says that self-etching primer is available as a hand-held marker for applying the product. Technician B says that self-etching primer is applied in thick coats.

• A only

• B only

• Both

• Neither

Which of these is true about applying a chip-resistant coating material?

a. Follow the manufacturer recommendation (TDS)

b. Always apply two coats

c. Let your test panel be your guide

d. Apply the same texture pattern on every vehicle

• Follow the manufacturer recommendation (TDS)

• Always apply two coats

• Let your test panel be your guide

• Apply the same texture pattern on every vehicle

1. Which of these is designed purpose for seam sealer?

a. Fill a gap formed by a poorly fitted weld joint

b. Prevent fumes from entering the passenger compartment

c. Absorb moisture from the air

d. Protect against stones and debris from the road.

• Fill a gap formed by a poorly fitted weld joint

• Prevent fumes from entering the passenger compartment

• Absorb moisture from the air

• Protect against stones and debris from the road.

Technician A says that anti-corrosion compounds is available as an aerosol. Technician B says that undercoating is available as an aerosol.

• A only

• B only

• Both

• Neither

Technician A says that direct-to-metal seam sealer can be applied over a seam with minor surface corrosion. Technician B says that some vehicle makers recommend epoxy primer be applied before direct-to-metal seam sealer.

• A only

• B only

• Both

• Neither