Product Code: Backer3
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  • ULTRA BLOCK® is a pre-engineered, patented textile fiberglass with fiberglass matt facing, containing approximately 30% by weight unexpanded vermiculite. ULTRA BLOCK® is primarily used in fire rated construction joints. The addition of an elastomeric sealant, nominal 1/2” thick, to either one or both sides contains the smoke, the toxic fumes and the unburned gases.

    All ULTRA BLOCK® systems comply with all 4 major fire codes in the United States:

    • BOCA, SBCCI, UBC, U.S. Corps of Engineers

    Stocked in: 1/2” x 6” & 1/2” x 8” rolls.

  • http://www.bayindustries.com/backer-rod/ultra-block%C2%AE
  • https://www.constructionmidwest.com/components/com_mijoshop/opencart/download/52040668ULTRA BLOCK.pdf
  • https://www.constructionmidwest.com/components/com_mijoshop/opencart/download/477430219ULTRA BLOCK.pdf
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