Are waterproof bandages really waterproof? August 09, 2021 15:08 Updated These bold bandages are designed to stand up to your water activities. The exterior is made of polyurethane. Related articles How do I apply the waterproof? What makes the hydrocolloid bandages special? Can I buy just the tin? Are your bandages and ointments vegan? What does the face bandage do? Comments 0 comments Article is closed for comments.