A resin has been developed which, when dissolved in water, provides a solution into which crinoline bandages with plaster-of-Paris can be dipped and then applied to make a strong waterproof cast. More recently, the incorporation of the resin into the plaster-of-Paris bandage has obviated many of the objections (the time required to mix and prepare the plaster and disposal of unused material).
One hundred and eighteen casts were applied to all parts of the body in 100 patients of all ages for varying lengths of time up to four months. One skin reaction, similar to a small second-degree burn, was found which might be attributed to sensitivity to this resin.
The waterproofing and the strength of the casts are obvious advantages, particularly in instances in which prolonged application or contact with moisture exists. The cast material has also been of value when used on psychiatric patients.