Is a Fibreglass Cast Waterproof?

Although the fiberglass itself is waterproof, the padding inside a fiberglass cast is not. So it's still important to try to keep a fiberglass cast from getting wet. If this is a problem, talk to the doctor about getting a waterproof liner.

Can you swim with a Fibreglass cast?

You should never go swimming in a traditional fiberglass cast, even if it's covered. If you're using a waterproof cover, you should still avoid fully submerging your cast. Small holes in the cast cover or an imperfect fit can cause the cast to get wet.

What happens if fiberglass cast gets wet?

In general, casts are meant to stay dry. A wet cast can lead to skin irritation or infection. Plaster casts and fiberglass casts with conventional padding aren't waterproof. Keep your child's cast dry during baths or showers by covering it with two layers of plastic, sealed with a rubber band or duct tape.