He pasted a poster on the wall.

This camera has a waterproof function.

I used a spray to waterproof my new shoes.

This wall needs a waterproof coating.

He coated the wall with paint.

Your cooperation is needed for this project.

I need you.

After the earthquake, a crack developed in the wall.

Using this coating agent to paint the wall provides a waterproof effect.

Do you understand the necessity of this project?