Duct tape

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Powdered aluminum pigment gives traditional duct tape its silvery gray color. Duct-tape.jpg
Powdered aluminum pigment gives traditional duct tape its silvery gray color.

Duct tape (historically and still occasionally referred to as duck tape) is cloth- or scrim-backed pressure-sensitive tape, often coated with polyethylene. There are a variety of constructions using different backings and adhesives, and the term "duct tape" has been genericized to refer to different cloth tapes with differing purposes. A variation is heat-resistant foil tape useful for sealing heating and cooling ducts, produced because the adhesive on standard duct tape fails and the synthetic fabric reinforcement mesh deteriorates when used on heating ducts.

Contents

Duct tape is generally silvery gray in color, but also available in other colors and printed designs, from whimsical yellow ducks, college logos to practical camouflage patterns. It is often confused with gaffer tape (which is designed to be non-reflective and cleanly removed, unlike duct tape).

During World War II, Revolite (then a division of Johnson & Johnson) developed an adhesive tape made from a rubber-based adhesive applied to a durable duck cloth backing. This tape resisted water and was used to seal some ammunition cases during that period. [1]

"Duck tape" is recorded in the Oxford English Dictionary as having been in use since 1899 [2] and "duct tape" (described as "perhaps an alteration of earlier duck tape") since 1965. [3]

History

Wheel fender extension to keep down lunar dust improvised using duct tape during the Apollo 17 mission AS17-137-20979.jpg
Wheel fender extension to keep down lunar dust improvised using duct tape during the Apollo 17 mission

The first material called "duck tape" was long strips of plain non-adhesive cotton duck cloth used in making shoes stronger, for decoration on clothing, and for wrapping steel cables or electrical conductors to protect them from corrosion or wear. [4] For instance, in 1902, steel cables supporting the Manhattan Bridge were first covered in linseed oil then wrapped in duck tape before being laid in place. [5] In the 1910s, certain boots and shoes used canvas duck fabric for the upper or for the insole, and duck tape was sometimes sewn in for reinforcement. [6] In 1936, the US-based Insulated Power Cables Engineers Association specified a wrapping of duck tape as one of many methods used to protect rubber-insulated power cables. [7] In 1942, Gimbel's department store offered venetian blinds that were held together with vertical strips of duck tape. [8]

Glue backed or impregnated adhesive tapes of various sorts were in use by the 1910s, including rolls of cloth tape with adhesive coating one side. White adhesive tape made of cloth soaked in rubber and zinc oxide was used in hospitals to bind wounds, but other tapes such as friction tape or electrical tape could be substituted in an emergency. [9] In 1930, the magazine Popular Mechanics described how to make adhesive tape at home using plain cloth tape soaked in a heated liquid mixture of rosin and rubber from inner tubes. [10]

In 1923, tape pioneer Richard Gurley Drew at 3M invented masking tape, a paper-based tape with a mildly sticky adhesive intended to be temporarily used and removed rather than left in place permanently. In 1925, this became the Scotch brand masking tape. In 1930, Drew developed a transparent cellophane-based tape, dubbed Scotch Tape. This tape was widely used beginning in the Great Depression to repair household items. [11] Neither of these inventions was based on cloth tape. [11]

The ultimate wide-scale adoption of duck tape, today generally referred to as duct tape, came from Vesta Stoudt. Stoudt was worried that problems with ammunition box seals could cost soldiers precious time in battle, so she wrote to President Franklin D. Roosevelt in 1943 with the idea to seal the boxes with a fabric tape which she had tested. [12] The letter was forwarded to the War Production Board, which put Johnson & Johnson on the job. [13] The Revolite division of Johnson & Johnson had made medical adhesive tapes from duck cloth from 1927 and a team headed by Revolite's Johnny Denoye and Johnson & Johnson's Bill Gross developed the new adhesive tape, [14] designed to be ripped by hand, not cut with scissors.

Their new unnamed product was made of thin cotton duck coated in waterproof polyethylene (plastic) with a layer of rubber-based gray adhesive (branded as "Polycoat") bonded to one side. [8] [15] [16] [17] [18] [19] It was easy to apply and remove and was soon adapted to repair military equipment quickly, including vehicles and weapons. [15] This tape, colored in army-standard matte olive drab, was widely used by the soldiers. [20] After the war, the duck tape product was sold in hardware stores for household repairs. The Melvin A. Anderson Company of Cleveland, Ohio, acquired the rights to the tape in 1950. [16] It was commonly used in construction to wrap air ducts. [20] Following this application, the name "duct tape" came into use in the 1950s, along with tape products that were colored silvery gray like tin ductwork. Specialized heat- and cold-resistant tapes were developed for heating and air-conditioning ducts. By 1960, a St. Louis, Missouri, HVAC company, Albert Arno, Inc., trademarked the name "Ductape" for their "flame-resistant" duct tape, capable of holding together at 350–400 °F (177–204 °C). [21]

In 1971, Jack Kahl bought the Anderson firm and renamed it Manco. [16] In 1975, Kahl rebranded the duct tape made by his company. Because the previously used generic term "duck tape" had fallen out of use,[ failed verification ] he was able to trademark the brand "Duck Tape" and market his product complete with a yellow cartoon duck logo. Manco chose the term "Duck", the tape's original name, as "a play on the fact that people often refer to duct tape as 'duck tape'", [22] and as a marketing differentiation to stand out against other sellers of duct tape. [23] [24] In 1979, the Duck Tape marketing plan involved sending out greeting cards with the duck branding, four times a year, to 32,000 hardware managers. This mass of communication combined with colorful, convenient packaging helped Duck Tape become popular. From a near-zero customer base, Manco eventually controlled 40% of the duct tape market in the US. [17] [22] Acquired by Henkel in 1998, [25] Duck Tape was sold to Shurtape Technologies in 2009. [26] [27] Shurtape went on to introduce a premium version called "T-Rex Tape". [28] "Ultimate Duck", which had been Henkel's top-of-the-line variety, is still sold in the United Kingdom. [29] Ultimate Duck, T-Rex Tape, and the competing Gorilla Tape all advertise "three-layer technology".

After profiting from Scotch Tape in the 1930s, 3M had produced military materiel during World War II and by 1946 had developed the first practical vinyl electrical tape. [30] By 1977, the company was selling a heat-resistant duct tape for heating ducts. [31] In the late 1990s, 3M's tape division had an annual turnover of $300 million and was the US industry leader. [32] In 2004, 3M released a semi-transparent duct tape, with a clear polyethylene film and white fiberglass mesh. [33]

Manufacture

Modern duct tape is made variously from cotton, polyester, nylon, rayon or fiberglass mesh fabric to provide strength. The fabric, a very thin gauze called "scrim", is laminated to a backing of low-density polyethylene (LDPE). The color of the LDPE is provided by various pigments; the usual gray color comes from powdered aluminum mixed into the LDPE. Two tape widths are common: 1.9 in (48 mm) and 2 in (51 mm). Other widths are also offered. [34] The largest commercial rolls of duct tape were made in 2005 for Henkel, with 3.78 inches (9.6 cm) width, a roll diameter of 64 inches (160 cm) and weighing 650 pounds (290 kg). [35]

Common uses

Semi-transparent duct tape Transparent duct tape roll.png
Semi-transparent duct tape

Duct tape is commonly used in situations that require a strong, flexible, and very sticky tape. Some have a long-lasting adhesive and resistance to weathering.

A specialized version, gaffer tape, which does not leave a sticky residue when removed, is preferred by gaffers in the theatre, motion picture and television industries.

Ductwork

The product now commonly called duct tape has largely been displaced in HVAC uses with specialized foil tapes designed for sealing heating and ventilation ducts (sometimes referred to erroneously as "duct tapes").

Common duct tape carries no safety certifications such as UL or Proposition 65, which means the tape may burn violently, producing toxic smoke; it may cause ingestion and contact toxicity, it can have irregular mechanical strength, and its adhesive may have low life expectancy. [36] [37] Its use in ducts has been prohibited by the state of California [38] and by building codes in many other places.

Research was conducted in 1998 on standard duct tape at Lawrence Berkeley National Laboratory, Environmental Energy Technologies Division, which concluded that under challenging but realistic conditions duct tape becomes brittle, fails, and may even fall off completely. [36] [37]

Spaceflight

Interviewer: And duct tape works in the vacuum of space as well as it does here?
Walker: Oh, yes. Yes, it does. It sticks.

—  Charles D. Walker, describing duct tape's use on STS-51-D [39]

According to NASA engineer Jerry Woodfill duct tape had been stowed on board every mission since early in the Gemini program. [40]

NASA engineers and astronauts have used duct tape in their work, including in some emergency situations. One such usage occurred in 1970 when Woodfill was working in Mission Control, when the square carbon dioxide filters from Apollo 13's failed command module had to be modified to fit round receptacles in the lunar module, which was being used as a lifeboat after an explosion en route to the Moon. A workaround used duct tape and other items on board Apollo 13, with the ground crew relaying instructions to the flight crew. The lunar module's CO2 scrubbers started working again, saving the lives of the three astronauts on board.

Ed Smylie, who designed the scrubber modification in just two days, said later that he knew the problem was solvable when it was confirmed that duct tape was on the spacecraft: "I felt like we were home free," he said in 2005. "One thing a Southern boy will never say is, 'I don't think duct tape will fix it.'" [41]

Duct tape, referred to as "...good old-fashioned American gray tape..." [42] was used by the Apollo 17 astronauts on the Moon to improvise a repair to a damaged fender on the lunar rover, preventing possible damage from the spray of lunar dust as they drove. [43]

Military

In the US submarine fleet, an adhesive cloth tape is called "EB Green," as the duct tape used by Electric Boat was green. [44] [ unreliable source? ] It is also called "duck tape", "riggers' tape", "hurricane tape", or "100-mph tape"; [45] [46] a name that comes from the use of a specific variety of duct tape that was supposed to withstand up to 100 mph (160 km/h; 87 kn) winds. The tape is so named because it was used during the Vietnam War to repair or balance helicopter rotor blades. [47] [48]

Alternative uses

A wallet constructed mainly from duct tape Ducttapewallet.JPG
A wallet constructed mainly from duct tape

Duct tape's widespread popularity and multitude of uses has earned it a strong place in popular culture, and has inspired a vast number of creative and imaginative applications.

Duct tape occlusion therapy (DTOT) is a method intended to treat warts by covering them with duct tape for an extended period. The evidence for its effectiveness is poor; [49] [50] thus it is not recommended as routine treatment. [51] However, other studies suggest the duct tape treatment is more effective than existing medical options. [52] [53] Duct tape is often used in shoe repair due to its resiliency. [54] [55]

Duct tape has been used to temporarily fix Apple's iPhone 4 dropped call issue, as an alternative to Apple's own rubber case. [56]

USC's Tommy Trojan statue wrapped in duct tape to protect it from crosstown football rival UCLA 120107-LA-USC-UCLA02.jpg
USC's Tommy Trojan statue wrapped in duct tape to protect it from crosstown football rival UCLA

The Duct Tape Guys (Jim Berg and Tim Nyberg) have written seven books about duct tape, as of 2005. Their books have sold over 1.5 million copies and feature real and unusual uses of duct tape. In 1994 they coined the phrase "it ain't broke, it just lacks duct tape".

The sitcom The Red Green Show 's title character often used duct tape (which he dubbed "the handyman's secret weapon") as both a shortcut to proper fastening as well as for unconventional uses. The series sometimes showcased fan duct tape creations. The series had a feature film based on it entitled Duct Tape Forever and several VHS/DVD compilations of the show's use of the tape have been released. Since 2000, series star Steve Smith (as "Red Green") has been the "Ambassador of Scotch Duct Tape" for 3M. [58]

The Discovery Channel series MythBusters featured duct tape in a number of myths that involve non-traditional uses. Confirmed myths include suspending a car for a period of time, building a functional cannon, a two-person sailboat, a two-person canoe (with duct tape paddles), a two-person raft, Roman sandals, a chess set, a leak proof water canister, rope, a hammock that can support the weight of an adult male, holding a car in place, a bridge that spanned the width of a dry dock, and a full-scale functional trebuchet with duct tape as the only binder. In the episode "Duct Tape Plane", the MythBusters repaired (and eventually replaced) the skin of a lightweight airplane with duct tape and flew it a few meters above a runway.

Garrison Keillor's radio show A Prairie Home Companion included comedic fictional commercials sponsored by the "American Duct Tape Council".

Duct tape alert

Duct tape distributed by Skilcraft, whose primary customer is the U.S. federal government Government issue duct tape.jpg
Duct tape distributed by Skilcraft, whose primary customer is the U.S. federal government

The term duct tape alert refers to the recommendations made by the U.S. Department of Homeland Security on February 10, 2003, that Americans should prepare for a biological, chemical, or radiological terrorist attack by assembling a "disaster supply kit", including duct tape and plastic (presumably to attempt to seal one's home against nuclear, chemical, and biological contaminants), among other items. [59] [60] [61]

The recommendations followed an increase in the Department's official threat level to "orange", or "high risk", citing "recent intelligence reports". [62] [63]

According to press reports, the recommendations caused a surge in demand for duct tape. [64]

The media sensation surrounding duct tape was fodder for comedians and satirists. Some referred to it as "duct and cover", a reference to duck and cover.

See also

Related Research Articles

<span class="mw-page-title-main">Gaffer tape</span> Heavy cotton cloth pressure-sensitive tape

Gaffer tape is a heavy cotton cloth pressure-sensitive tape with strong adhesive and tensile properties. It is widely used in theatre, photography, film, radio and television production, and industrial staging work.

Richard Gurley Drew was an American inventor who worked for Johnson and Johnson, Permacel Co., and 3M in St. Paul, Minnesota, where he invented masking tape and cellophane tape.

<span class="mw-page-title-main">Masking tape</span> Pressure sensitive tape made of paper

Masking tape, also known as painter's tape, is a type of pressure-sensitive tape made of a thin and easy-to-tear paper, and an easily released pressure-sensitive adhesive. It is available in a variety of widths. It is used mainly in painting, to mask off areas that should not be painted.

<span class="mw-page-title-main">Scotch Tape</span> American brand of pressure sensitive tapes

Scotch Tape is a brand name used for pressure-sensitive tapes developed by 3M. It was first introduced by Richard Drew, who created the initial masking tape under the Scotch brand. The invention of Scotch-brand cellulose tape expanded its applications, making it suitable for sealing packages and conducting item repairs. Over time, Scotch Tape has been utilized in various industries and households for its diverse adhesive solutions.

<span class="mw-page-title-main">Label</span> Material affixed to a container or article with printed information

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Permacel, a division of the Nitto Denko company, is an industrial adhesive tape manufacturing company. Headquartered in Pleasant Prairie, Wisconsin, United States, the company produces 350 kinds of tape used in a broad range of industries, including paper masking tape, reinforced strapping tape, paper packaging tape, PTFE tape, film tape, double coated tape, transfer tape, repulpable tape, thread seal, foil tape, surface protective films and vinyl tape. Permacel manufactured and sold graphic art tapes until 2004 when that part of their business was sold to Shurtape Technologies.

<span class="mw-page-title-main">Electrical tape</span> Adhesive electrical insulation

Electrical tape is a type of pressure-sensitive tape used to insulate electrical wires and other materials that conduct electricity. It can be made of many plastics but PVC is the most popular, as it stretches well and gives effective and long-lasting insulation. Electrical tape for class H insulation is made of fiberglass cloth.

<span class="mw-page-title-main">Waterproofing</span> Process of making an object or structure waterproof or water-resistant

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<span class="mw-page-title-main">Heat-shrink tubing</span> Shrinkable plastic tube used to insulate wires

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<span class="mw-page-title-main">Hot-melt adhesive</span> Glue applied by heating

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<span class="mw-page-title-main">Surgical tape</span> Pressure-sensitive adhesive tape

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<span class="mw-page-title-main">Duct (flow)</span> Conduit used in heating, ventilation, and air conditioning

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<span class="mw-page-title-main">Speed tape</span> Aluminum tape for vehicle repairs

Speed tape is an aluminium pressure-sensitive tape used to perform minor repairs on aircraft and racing cars. It is used as a temporary repair material until a more permanent repair can be carried out. It has an appearance similar to duct tape, for which it is sometimes mistaken, but its adhesive is capable of sticking on an airplane fuselage or wing at high speeds, hence the name.

<span class="mw-page-title-main">Adhesive tape</span> Strip of material backed with adhesive

Adhesive tape is one of many varieties of backing materials coated with an adhesive. Several types of adhesives can be used.

Tape or Tapes may refer to:

Self-amalgamating tape is a non-tacky silicone rubber tape that when stretched and wrapped around cables, electrical joints, hoses, and pipes combines or unites itself into a strong, seamless, rubbery, waterproof, and electrically insulating layer. Unlike many other polymers and fibers, it is heat-, sunlight-, and weather-resistant. This type of tape is also described, particularly in the United States, as "self-fusing", or "self-vulcanizing". In the US Air Force it is called centerline tape due to a colored line running down the center used to assist with even wrapping. It is sold under a variety of brand names, including "F4 tape", "Tommy Tape", "Rescue Tape", and "Fix-It Tape".Certified versions of this tape for aviation/marine/military use meet A-A-59163 and MIL-I-22444 Specifications - FlameShield's website shows the parameters for each type.

<span class="mw-page-title-main">Pressure-sensitive tape</span> Type of adhesive

Pressure-sensitive tape or pressure-sensitive adhesive tape is an adhesive tape that sticks when pressure is applied without the need for a solvent or heat for activation. It is also known in various countries as self-stick tape, sticky tape, or just adhesive tape and tape, as well as genericized trademarks, such as Sellotape, Durex (tape), Scotch tape, etc.

The chemistry of pressure-sensitive adhesives describes the chemical science associated with pressure-sensitive adhesives (PSA). PSA tapes and labels have become an important part of everyday life. These rely on adhesive material affixed to a backing such as paper or plastic film.

Shurtape Technologies, LLC is an American manufacturing company that produces adhesive tape as well as consumer goods and office supplies. Founded in 1996, Shurtape had its origins as the tape division of Shuford Mills, a textile manufacturing company; Shurtape was spun off from the textile division after it began to outpace it in revenue. Today, both Shurtape and the remaining textile business are subsidiaries of STM Industries. The company is owned and operated by the Shuford family, with brothers Jim and Stephen serving as CEO and Executive Vice President, respectively.

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  52. ↑ Focht Dr, 3rd; Spicer, Carole; Fairchok, Mary P. (October 2002). "The Efficacy of Duct Tape vs Cryotherapy in the Treatment of Verruca Vulgaris". Archives of Pediatrics & Adolescent Medicine. 156 (10): 971–974. doi:10.1001/archpedi.156.10.971. PMID   12361440. Archived from the original on 2013-06-20.{{cite journal}}: CS1 maint: numeric names: authors list (link)
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  55. ↑ "The Do's and Don't's of DIY Shoe Repair". Drew's Shoes. Archived from the original on 2018-11-01. Retrieved October 31, 2018.
  56. ↑ "iPhone duct tape fix". CNN. 2010-07-13. Archived from the original on 2010-07-17. Retrieved 2010-07-13.
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  60. ↑ "Chemical Weapons Fact Sheet". Department of Homeland Security. Archived from the original on 2012-02-05.
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  62. ↑ "Remarks by Secretary Ridge, Attorney General Ashcroft, and Director Mueller". Department of Homeland Security. Archived from the original on 2012-02-05.
  63. ↑ "Threat Level Raised to Orange". Department of Homeland Security. Archived from the original on 2012-02-05.
  64. ↑ Meserve, Jeanne (2003-02-11). "Duct tape sales rise amid terror fears". CNN.com. Archived from the original on 2005-12-11.

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