Gardner Bender Duct Seal Compound

Sealant for Conduit and Electrical Fixtures


What's special about this sealing compound?

  • Allows you to seal out air, dust, and particles in and around electrical boxes, conduit, and cable tray.
  • Never sets and remains permanently soft and pliable, so it can be easily removed and reapplied at any time.
  • Can be painted over immediately after application for color coding or matching.
  • Click for More Features
  • UL

Gardner Bender duct seal putty is the perfect solution for filling voids in your electrical installations. This pliable, easy to use compound is premixed and ready to use right out of the package, which saves valuable time on the jobsite.

Part # Description Package Size Price
GB-DS-110N Gardner Bender Duct Seal 1 lb
Quick Ship
GB-DS-530 Gardner Bender Duct Seal 5 lbs
Quick Ship
  • FDA and USDA approved for use in areas where food, poultry and meats are processed.
  • Hand moldable, and requires no special tools for application or use.
  • Never sets, so it can be easily removed and reapplied at any time.
  • Ideal for use in new or retrofit installations.
  • Made with non-corrosive materials and is completely safe to handle.
  • Available in 1lb and 5lb packages for use on big or small jobs.
  • UL Listed - R11374

    Ideal for filling spaces in:

  • Electrical Boxes
  • Conduit
  • Metallic and nonmetallic pipes
  • Cables
  • Ducts
  • Refrigeration and cooling applications
  • Plumbing

    Base - Non-drying synthetic polymers and oils
    Fillers - Saturated mineral fillers and other inert ingredients
    Specific Gravity ASTM D71-72 1.65 to 1.7
    Cone Penetration ASTM D217-52T Load of 300 gm 5 sec. @ 25° F; 100 - 115mm/10
    Temperature Usage Range 25° F to +120° F Recommended
    Temperature Tolerance Range -30° F to +175° F Will not slump at +275° F


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    Questions & Answers


    Will this product degrade pex tubing attached to hose bid if used to seal to house?

    Asked by Anonymous user on 09.51 AM Friday, 31 March, 2017

    • - Hello, This duct seal is perfect for filling in spaces around electrical boxes, conduit,metallic and nonmetallic pipes, cables, ducts, refrigeration and cooling applications and plumbing and will not adversely affect other plastic materials or corrode metals. Since Pax tubing is a polyethylene which is a thermoplastic this duct should not degrade the tubing. Please be aware that the temperature rating for this product is 25F to +120 F If you have any other questions please give us a call toll free at 866-222-0030

      andrew b. on 03.49 PM Thursday, 06 April, 2017

    Can it be used to.fill air gaps in pot lights? Concerned about light overheating and causing a fire. I living in a first story condo with people living above. No attic access.

    Asked by Anonymous user on 05.38 PM Friday, 13 October, 2017

    • - Hello, Please note the flash point for this product is at 550 degrees F. Temperature range is -20 degrees F ? will not slump after 1 hour at 350 degrees F.

      andrew b. on 03.14 PM Monday, 16 October, 2017

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