| 摘要 |
A plug for use in sealing a hole and surrounding surfaces of a substrate while a coating is being applied to that substrate. The plug comprises a shank provided with a head and a blind bore extending through its centre. The head includes a gripping portion for restraining the plug during installation and a sealing portion configured to bear against the substrate. The shank can be temporarily elongated so as to reduce its diameter enabling installation in the hole. Once the shank is in the hole of the substrate, the plug can be returned to its pre-elongated shape. |
