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Question PPI of Magnetic sheeting?

Discussion in 'General Signmaking Topics' started by 2B, Jul 11, 2018.

  1. 2B

    2B Moderator

    2,371
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    May 5, 2011
    TX
    why is the 20mil mag magnetized with a stronger PPI than the 30mil mag?
    20 mil is magnetized to 16 poles per inch, & 30 mil is magnetized to 12 poles per inch

    but yet the 20mil is not recommended for vehicle application.....
     
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  2. bannertime

    bannertime "You guys do banners, right?"

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    Sep 8, 2016
    Arlington, TX
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