Settable material impregnated claoth comprises two layers of cloth linked by fibres and with the space between filled with a settable powdered material

摘要

594823 A impregnated flexible cloth that can be set to become rigid or semi-rigid, comprises a first face 10, a second face 12 separated from the first face 10 by a space, self-supporting linking fibres 14 extending between the first and second faces that maintain the first and second face in a spaced-apart arrangement, and a powder material allocated in the space between the first and second faces. The material is capable of setting to a rigid or semi rigid solid on the addition of a liquid or on exposure to radiation. At one or more edges of the cloth, the first and second faces are connected by an elastic yarn 26 that is shorter than the self-supporting linking fibres, thereby at least partly closing the space at the edge of the cloth.