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1. SpecSeal Firestop Block/Specified Technologies Inc./2026-04-14

   Open the PDF · HPD 41756

   Expiration Date: 2029-04-14

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   SpecSeal® Firestop Blocks are penetration firestop products resembling foam bricks. These intumescent urethane foam blocks are installed in openings by compressing and stacking into the opening in a brick-like fashion. The intumescent…