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Water hardenable splinting bandages comprising a flexible fabric carrying an isocyanate terminated prepolymer having a reaction functionality of not less than two and a catalyst which bandage is characterized in that the prepolymer is a water absorbing isocyanate terminated prepolymer and the cataly

Water hardenable splinting bandages comprising a flexible fabric carrying an isocyanate terminated prepolymer having a reaction functionality of not less than two and a catalyst which bandage is characterized in that the prepolymer is a water absorbing isocyanate terminated prepolymer and the catalyst is water soluble but insoluble in the prepolymer, compositions therefore and processes of manufacture thereof are described.

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A water hardenable splinting bandage comprising a flexible fabric carrying a water absorbing isocyanate terminated prepolymer having a reaction functionality of not less than two in admixture with a solid inorganic catalyst that has an alkaline reaction with water, said inorganic catalyst being wate

A water hardenable splinting bandage comprising a flexible fabric carrying a water absorbing isocyanate terminated prepolymer having a reaction functionality of not less than two in admixture with a solid inorganic catalyst that has an alkaline reaction with water, said inorganic catalyst being water-soluble but insoluble in the prepolymer. A method of making water hardenable splinting bandages as described in claim 1 which comprises coating or impregnating a flexible fabric carrier with a mixture of said water absorbing isocyanate terminated prepolymer and said solid water soluble catalyst which is insoluble in the prepolymer.