Before assembling them, which action should be taken on metal where two pieces touch?

Before assembling them, which action should be taken on metal where two pieces touch?

• A. Paint
• B. Clear coat
• C. Cover
• D. A or B

Answer: (D)

When two metal pieces will touch, protect the contact area with a barrier coating to stop moisture and air from reaching the metal. Painting the surface, or applying a clear coat, creates a protective layer that prevents rust and reduces wear at the joint. Painting adds color and rust-inhibiting protection; a clear coat offers protection without changing the metal’s appearance. Do this before assembly so the entire contact area is covered and can cure properly, ensuring no bare metal remains at the joint. Choose a rust-inhibiting option suitable for the metal and fasteners, and follow application and curing instructions.

When two metal pieces will touch, protect the contact area with a barrier coating to stop moisture and air from reaching the metal. Painting the surface, or applying a clear coat, creates a protective layer that prevents rust and reduces wear at the joint. Painting adds color and rust-inhibiting protection; a clear coat offers protection without changing the metal’s appearance. Do this before assembly so the entire contact area is covered and can cure properly, ensuring no bare metal remains at the joint. Choose a rust-inhibiting option suitable for the metal and fasteners, and follow application and curing instructions.