| 摘要 |
The invention provides a caulking tube sealing cap which may be threaded onto a standard caulking tube nozzle after the tube has been opened. The cap generally includes a frusto-conically shaped internal threaded cavity. The internal cavity also includes an integrally formed sealing ring that compressively cooperates with the caulking tube tip to prevent air from entering the tube, thus extending the shelf-life of the unused caulk or other viscous material remaining in the tube.
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