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Which seam is superior in water resistance? “Plain seam VS Welt seam”


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Home Forums Campfire Member Blog Posts Which seam is superior in water resistance? “Plain seam VS Welt seam”

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    Nenta WAKO, Dr.Eng.
    BPL Member

    @nentaw_backpackresearcher

    Companion forum thread to: Which seam is superior in water resistance? “Plain seam VS Welt seam”

    The other day, I performed a seam test for water leakage without seam sealing tape. I confirmed why most outdoor backpacks have been made with plain seam that sews together on the inside.
    It is superior to welt seam in process cost and water pressure resistance. Both of the seam types didn’t prevent water leakage, but there was a clear difference in the leak time between them.

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