I remember when I had a roll of original military duck tape. Yes DUCK as it was rubberized cotton duck cloth. Full weave. Modern tape has ultra thin cloth with slightly thicker reinforcements in about 1/8 x 1/4 spacing. No where near as strong. Does anyone know of any real duck tape being made?
For those confused, DUCK tape, A.K.A. 90 MPH tape, was heavy cotton duck. The rubber adhesive is not long lasting. It turns to goo and eventually power. It is totally unsuitable for sealing DUCTS. Duct tape for HVAC application has synthetic adhesive that lasts decades. Usually aluminum foil or fiber reinforced foil. Real professionals seal ducts with a brush on fiber reinforced filler that lasts longer than we know.
I am not totally sour grapes. Just got a pair of Veritas dovetail gauges. The simple milled angle kind. Finally a marking gauge that works! I can scribe the and face with a knife accurately. NO adjusting, fumbling, or using all those words I learned as a system's admin when someone's mail folder got corrupted.
For those confused, DUCK tape, A.K.A. 90 MPH tape, was heavy cotton duck. The rubber adhesive is not long lasting. It turns to goo and eventually power. It is totally unsuitable for sealing DUCTS. Duct tape for HVAC application has synthetic adhesive that lasts decades. Usually aluminum foil or fiber reinforced foil. Real professionals seal ducts with a brush on fiber reinforced filler that lasts longer than we know.
I am not totally sour grapes. Just got a pair of Veritas dovetail gauges. The simple milled angle kind. Finally a marking gauge that works! I can scribe the and face with a knife accurately. NO adjusting, fumbling, or using all those words I learned as a system's admin when someone's mail folder got corrupted.
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