| 摘要 |
A venting tape for use in venting an enclosed article space to be filled with an injected expandable foam material. The venting tape includes a polymeric film having a plurality of minute perforations formed therethrough. The perforations are sized to allow the passage of a gas therethrough yet prevent the passage of expandable foam insulation. The venting tape further includes an adhesive layer on one side of the film in a pattern enabling a substantial portion of the minute perforations to remain uncovered by the adhesive layer.
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