Xray plaster

X-ray plaster is retarded hemihydrate plaster containing barium sulfate (barytes) aggregate. It is used as an

Stop beod

Fig. 12.1 Plastering beads and arch formers

Stop beod

Fig. 12.1 Plastering beads and arch formers undercoat plaster in hospitals, etc., where protection from X-rays is required. Typically, a 20 mm layer of X-ray plaster affords the same level of protection as a 2 mm sheet of lead, providing that it is free of cracks.

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