Q.Someone from Florida told me about fiberglass casts that are totally waterproof. Have you heard of this?
A.Orthopedic surgeons use casts to immobilize bones and joints, and plaster and fiberglass are the two most common casting materials. Both of these materials come in rolls.
The first step in applying a cast is to roll a layer of cast padding onto the area to be immobilized. Next, the cast material is dipped into water and then unrolled over the part of the body to be immobilized.
As it dries, the cast becomes very rigid.