Drywall mesh tape OK for duct sealing with mastic?

Discussion in 'HVAC Heating & Cooling' started by Stereo, Feb 12, 2020.

  1. Stereo

    Stereo Member

    Joined:
    Dec 14, 2019
    Location:
    Colorado
    For larger holes in HVAC ductwork, mesh tape is called for. I have plenty of fiberglass mesh tape for drywalling. Is that OK to use, or does the mesh tape have to be HVAC-specific? The HVAC tape is not readily available locally at the retail level.
     
  2. Dana

    Dana In the trades

    Joined:
    Jan 14, 2009
    Location:
    01609
    Any fiberglass mesh is fine to use for patching holes in ductwork with duct mastic.
     
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  4. Stereo

    Stereo Member

    Joined:
    Dec 14, 2019
    Location:
    Colorado
    Thank you, Dana.
     
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