| 摘要 |
The caulking cartridge alleviates the afterflow prolem and assures that substantially all of the caulking composition can be driven from the cartridge. The cartridge has a tubular body, a forward dispensing opening at a forward end of the tubular body, and a backwall movably disposed within the tubular body. The backwall has a shape that is complementary to a shape of the forward end of the tubular body. This ensures that the composition is completely purged from the tubular body when the backwall is pushed against the forward end. The backwall may be formed to slide contactlessly within the tubular body, preferably by way of a reduced diameter of the backwall relative the inner diameter of the tubular body, so that it is pushed backwardly when the body retracts radially after actuation.
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