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A casting product for forming a hard structure about an object including a flexible fibrous substrate impregnated with a fluid-activated resin and a protective flexible casing surrounding the impregnated substrate. The casing includes a sealable passageway defined between the atmosphere and the int

A casting product for forming a hard structure about an object including a flexible fibrous substrate impregnated with a fluid-activated resin and a protective flexible casing surrounding the impregnated substrate. The casing includes a sealable passageway defined between the atmosphere and the interior of the casing, and is configured to permit injection of fluid, and removal of vapors and extant fluid with a vacuum from the casing.

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We claim: 1. A kit for forming a hard structure about an object comprising: a flexible fibrous substrate impregnated with a resin and a protective flexible casing surrounding said impregnated substrate and including a sealable passageway defined between the atmosphere and the interior of said casin

We claim: 1. A kit for forming a hard structure about an object comprising: a flexible fibrous substrate impregnated with a resin and a protective flexible casing surrounding said impregnated substrate and including a sealable passageway defined between the atmosphere and the interior of said casing; an injection device configured to be received by said passageway and enabling injection of fluid into said casing, said resin being activated by the fluid injected into said casing by said injection device; and a vacuum configured to be received by said passageway, said vacuum connected to said passageway and enabling removal of excess fluid in said casing after fluid used to activate the resin is injected by said injection device. 2. The kit according to claim 1 wherein said injection device includes a syringe. 3. The kit according to claim 1 wherein said injection device includes a pipe having a plurality of holes defined along a distal portion thereof, said distal portion configured to be inserted through said passageway and into said casing interior. 4. The kit according to claim 1 wherein the casing is at least substantially moisture impervious. 5. A method of immobilizing a body portion with a casting product including a flexible fibrous substrate impregnated with a fluid-activated resin and a protective flexible casing surrounding said impregnated substrate and including a sealable passageway defined between the atmosphere and the interior of said casing, said method comprising the steps of: injecting fluid through said passageway and into said casing to activate said resin; removing excess fluid from said casing with a vacuum connected to said passageway after said resin has been activated; applying said casing to a body portion to conform the impregnated substrate to the shape of a body portion; and allowing the resin to harden to preserve the configuration defined by the body portion. 6. The method according to claim 5 further comprising the step of inserting an injection tube having a plurality of apertures defined along a distal portion thereof, said distal portion configured to be inserted through said passageway and into said casing. 7. The method according to claim 6 wherein said distal portion of said injection tube is positioned across a breather disposed along a surface of said substrate.