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  1. DEXcell Cement Roof Boards/PermaBASE Building Products, LLC provided by National Gypsum Company/2026-05-08

    Open the PDF · HPD 44942

    Expiration Date: 2029-05-08

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    DEXcell® Cement Roof Board provides an exceptionally hard, durable surface that withstands prolonged exposure to moisture. Its composition of Portland cement and lightweight aggregate with heavy duty fiberglass-mesh makes it an excellent…

  2. PermaBASE PLUS Cement Board/PermaBASE Building Products, LLC provided by National Gypsum Company/2026-04-10

    Open the PDF · HPD 44493

    Expiration Date: 2029-04-10

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    PermaBASE PLUS® Cement Board has the same qualities built into PermaBASE® Cement Board but weighs 15% less. When you need to lighten your load, consider PermaBASE PLUS for both interior and exterior applications. Made with Portland cement…

  3. PermaBASE Cement Board/PermaBASE Building Products, LLC provided by National Gypsum Company/2026-04-10

    Open the PDF · HPD 44492

    Expiration Date: 2029-04-10

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    PermaBASE® Cement Board provides a durable surface designed to withstand prolonged exposure to moisture. Made with Portland cement, aggregate, and fiberglass mesh, it works well as an underlayment for tub and shower surrounds, countertops…

  4. Gold Bond eXP Fire-Shield Tile Backer/Gold Bond Building Products, LLC provided by National Gypsum Company/2025-12-12

    Open the PDF · HPD 42590

    Expiration Date: 2028-12-12

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    Gold Bond® eXP® Fire-Shield® Tile Backer consists of a moisture- and mold-resistant gypsum core encased in an acrylic-coated, specially designed fiberglass mat on the face, back and sides. Available with a Type X core with glass mat folded…

  5. Homasote 440/Homasote Company/2025-02-28

    Open the PDF · HPD 15263

    Expiration Date: 2028-02-28

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    Medium Density Fiberboard, used as a sound reducing component