| 摘要 |
An indicator (1) for indicating the depth of a layer of a settable material (45) that has been applied to a support surface (42) is disclosed. The indicator (1) comprises a base (2) defining a contact surface for mounting on the support surface, and a shank (5) having one end mounted on said base (2) and projecting transverse away from the base (2) to a free end remote from said base (2). An indicating marker (20) is positioned on the shank (2) for indicating the depth of settable material when it is filled up to the level of the marker (20). The indicator (1) also includes a cap (30) mounted on the free end of the shank (5). A method of applying a layer of settable material onto a support surface (42) using the indicator (1) is also disclosed. The method comprises the steps of providing at least one depth indicator (1) and placing the indicator (1) on the support surface (42) and adhering it thereto. Thereafter the settable material is applied to the support surface (42). The depth of the material on the support surface is measured from the length of the shank of the indicator that still remains exposed. The material is applied in a thickness that extends up to the indicating marker (20) to provide a layer of material or required thickness.
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