Mastic is normally used for what purpose?

Mastic is normally used for what purpose?

• A. Weatherproofing
• B. Protective equipment
• C. Mastic
• D. Caulking gun

Answer: (C)

Mastic is a sticky, pliable sealant used to fill gaps and seal joints in building surfaces. Its main purpose is weatherproofing—creating a flexible barrier that blocks air and moisture from passing through openings around windows, doors, pipes, and other joints. While it’s common to apply mastic with a caulking gun, the essential function is sealing and preventing leaks, not providing protection equipment or serving as the tool itself.

Mastic is a sticky, pliable sealant used to fill gaps and seal joints in building surfaces. Its main purpose is weatherproofing—creating a flexible barrier that blocks air and moisture from passing through openings around windows, doors, pipes, and other joints. While it’s common to apply mastic with a caulking gun, the essential function is sealing and preventing leaks, not providing protection equipment or serving as the tool itself.