Gardner Bender duct seal compound is a dough-like material that is easy to handle. This material helps seal and protect gaps, holes and conduit openings against dust, moisture, drafts and noise. This material is non-toxic, non-corrosive and non-staining. This seal can be used in temperatures that range between -20 degrees Fahrenheit up to 350 degrees Fahrenheit.
Dough-like compound is easily thumbed over holes and gaps
Can be easily shaped by hand to any form and reused if necessary
May be painted immediately after application
Used to seal around electrical boxes, flashings, service mast entries, etc
Adheres at -20 °F (-29 °C); will not slump after 1 hour at 350 °F (175 °C)
Not for use outdoors
Viscosity: ASTM D-217 300-gram load - 7.0 -11.0; ASTM DS-S2 100-gram load - 9.0 -15.0
Countless applications including electrical, plumbing, refrigeration, heating and cooling and metal fabrication