View source for Tyvek

{{Short description|Brand of synthetic polyethylene fiber}}
{{distinguish|Tyvak}}
{{Multiple issues|
{{Advert|date=October 2023}}
{{COI|date=October 2023}}
{{Disputed|date=October 2023}}
}}
{{infobox brand
| logo           = File:Dupont Tyvek logo.svg
| name           = Tyvek
| image          = 
| type           = [[Flashspun fabric|Flashspun]] [[Nonwoven fabric|nonwoven]] [[High-density polyethylene|HDPE]] [[fiber]]
| currentowner   = [[DuPont]]
| origin         = United States
| introduced     = {{start date and age|1967|4}}
| discontinued   = 
| related        = [[Yupo (manufacturer)|YUPO]] synthetic [[Oji Paper Company|paper]]
| markets        = [[Construction]], [[Packaging]] and [[label]]ing
| previousowners = 
| trademarkregistrations = 
| ambassador     = 
| tagline        = What do you need to protect?
| website        = [https://www.dupont.com/brands/tyvek.html dupont.com/Tyvek]
}}
[[File:Tyvek house wrap.jpg|thumb|Tyvek house wrap]]
'''Tyvek''' ({{IPAc-en|'|t|ai|.|v|ɛ|k}}) is a [[brand]] of [[chemical synthesis|synthetic]] [[flashspun]] [[high-density polyethylene]] [[fiber]]s. The name ''Tyvek'' is a [[registered trademark]] of the American multinational chemical company [[DuPont]], which discovered and commercialized Tyvek in the late 1950s and early 1960s.

Tyvek's properties—such as being difficult to tear but easily cut, and waterproof against liquids while allowing [[water vapor]] to penetrate—have led to it being used in a variety of applications. Tyvek is often used as [[housewrap]], a synthetic material used to protect buildings during construction, or as [[PPE gown|personal protective equipment]] (PPE).<ref name="coccolini">{{cite journal |doi=10.1186/s13017-020-00307-2|title=Surgery in COVID-19 patients: Operational directives|year=2020|last1=Coccolini|first1=Federico|last2=Perrone|first2=Gennaro|last3=Chiarugi|first3=Massimo|last4=Di Marzo|first4=Francesco|last5=Ansaloni|first5=Luca|last6=Scandroglio|first6=Ildo|last7=Marini|first7=Pierluigi|last8=Zago|first8=Mauro|last9=De Paolis|first9=Paolo|last10=Forfori|first10=Francesco|last11=Agresta|first11=Ferdinando|last12=Puzziello|first12=Alessandro|last13=d'Ugo|first13=Domenico|last14=Bignami|first14=Elena|last15=Bellini|first15=Valentina|last16=Vitali|first16=Pietro|last17=Petrini|first17=Flavia|last18=Pifferi|first18=Barbara|last19=Corradi|first19=Francesco|last20=Tarasconi|first20=Antonio|last21=Pattonieri|first21=Vittoria|last22=Bonati|first22=Elena|last23=Tritapepe|first23=Luigi|last24=Agnoletti|first24=Vanni|last25=Corbella|first25=Davide|last26=Sartelli|first26=Massimo|last27=Catena|first27=Fausto|journal=World Journal of Emergency Surgery|volume=15|issue=1|pages=25|pmid=32264898|pmc=7137852 |doi-access=free }}</ref>

==History==
Tyvek is a [[Nonwoven fabric|nonwoven]] product consisting of spun bond [[olefin fiber]]. It was first discovered in 1955 by a researcher for the DuPont [[textile]] company working in an experimental lab, who noticed a type of white fluff coming out of a pipe.<ref>{{cite web|url=http://www.dupont.com/products-and-services/fabrics-fibers-nonwovens/protective-fabrics/brands/tyvek.html|title=Tyvek brand - For Greater Good|author=admin|archive-url=https://web.archive.org/web/20071207232132/http://www2.dupont.com/Tyvek/en_US/products/about_pgs/history.html|archive-date=2007-12-07}}</ref> That fluff was a form of [[polyethylene]], which DuPont requested a patent for within a year of the discovery. After [[technologies]] improved during the next few years, in 1959 DuPont discovered that when the fluff was spun at high speeds it produced a durable [[fabric]] that could be cut with a blade. While the product Tyvek was used since 1959, DuPont did not trademark the actual brand until 1965, making it available for  commercial purposes in April 1967.<ref>{{cite web|url=http://www.dupont.com/products-and-services/fabrics-fibers-nonwovens/protective-fabrics/brands/tyvek/tyvek-media-center.html|title=DuPont Tyvek Marks 40 Years of Energy Efficiency and Protection|publisher=[[DuPont]]|archive-url=https://web.archive.org/web/20080209122333/http://www2.dupont.com/Tyvek/en_US/news_events/article20070619.html|archive-date=2008-02-09}}</ref>  By 1970, Tyvek had reached the mainstream [[construction]] industry on both a national and global scale. Its products were often used for the construction of houses due to its ability to keep out liquid, while allowing vapor through.<ref>{{Cite web|url=http://www2.dupont.com/Building_Innovations/en_CN/knowledgeCenter/kc_tyvekhistory.html|archive-url=https://web.archive.org/web/20121005022801/http://www2.dupont.com/Building_Innovations/en_CN/knowledgeCenter/kc_tyvekhistory.html|url-status=dead|archive-date=2012-10-05|title=History of Weather Barrier|website=www2.dupont.com|access-date=2018-11-28}}</ref> In 1972, DuPont released Tyvek packaging for sterile instruments that were to be used by [[Surgeon|surgeons]] and [[Physician|doctors]] in the medical field.<ref>
{{Cite web|url=http://www.dupont.com/content/dam/dupont/products-and-services/packaging-materials-and-solutions/medical-and-pharmaceutical-packaging-materials/documents/MPP_Introduction_to_DuPont_Tyvek.pdf|title=DuPont Tyvek for Medical and Pharmaceutical Packaging|website=www.dupont.com|access-date=2018-12-11}}
</ref>

=== 21st century ===
DuPont currently [[manufactures]] Tyvek at the Spruance plant in [[Richmond, Virginia]], and in [[Sandweiler]]-[[Contern]], [[Luxembourg]]. In 2018, the company announced plans to expand the Tyvek production capacity of the Sandweiler-Contern factory.<ref>{{Cite web|url=https://www.nonwovens-industry.com/contents/view_breaking-news/2018-06-05/dupont-announces-400-million-tyvek-expansion/|title=DuPont Announces $400 Million Tyvek Expansion|website=Nonwovens Industry Magazine - News, Markets & Analysis for the Nonwovens Industry|access-date=2018-12-11}}</ref>

== Scientific characteristics and properties ==
[[File:TyvekExpressMailEnvelope.jpg|thumb|Tyvek USPS Express Mail envelope]]

=== Adhesion and bonding ===
To bond Tyvek to both itself and a variety of substrates, DuPont recommends [[starch]], [[dextrin]], [[casein]], and [[Animal glue|animal-based]] [[adhesive]]s over most [[Adhesive#Synthetic|synthetic-based adhesives]], emphasizing the effectiveness of water-based and quick-drying glues. DuPont also claims that the following [[adhesive]]s are highly effective:

* Ethylene/[[vinyl acetate]]
* Acrylic pressure-sensitive tape
* Solvent-based single-component [[polyurethane]]
* [[Hot glue]]

[[Heat sealing]] can be used to melt Tyvek and cause it to bond to itself, but this form of bonding tends to create puckers in the otherwise flat material. [[Dielectric]] bonding can be effective in some circumstances, as is [[ultrasonic welding]].<ref>{{cite web|url=https://www.dupont.com/packaging-materials-and-solutions/seaming-and-sealing.html|title=Seaming and Sealing with DuPont Tyvek|year=2012|publisher=DuPont|access-date=11 November 2013}}</ref>

===Recycling===
Though Tyvek superficially resembles paper (for example, it can be written and printed on), it is [[plastic]], and it cannot be [[Recycling|recycled]] with paper. Some Tyvek products are marked with the #2 resin-code for [[HDPE]], and can be collected with [[Plastic bottle|plastic bottles]] as part of some municipal curbside recycling programs. DuPont runs a program in the United States where disposable clothing, coveralls, lab coats, medical packaging and other non-hazardous Tyvek disposable garments can be recycled, as well as providing a mail-in recycling program for envelopes.<ref>{{cite web|url=http://www.dupont.com/products-and-services/packaging-materials-solutions/industrial-packaging/articles/recycling-information.html|archive-url=https://web.archive.org/web/20150105150631/http://www.dupont.com/products-and-services/packaging-materials-solutions/industrial-packaging/articles/recycling-information.html|url-status=dead|archive-date=2015-01-05|title=Recycling - DuPont Tyvek for Industrial Packaging - DuPont USA|author=admin}}</ref>

As plastic bag recycling has become more prevalent in the United States, the [[American Chemistry Council]] has recommended that plastic film drop-off recycling locations should be able to accept Tyvek.<ref>{{cite web|url=https://www.plasticfilmrecycling.org/wp-content/uploads/2017/06/Recycling-Reach-Study-2012.pdf|title=Plastic Film and Bag Recycling Collection: National Reach Study|publisher=Moore Recycling Associates Inc.}}</ref>

=== Properties of Tyvek ===
According to DuPont's website, Tyvek fibers are {{cvt|0.5–10|μm}} (compared to {{cvt|75|μm}} for a human hair). The nondirectional fibers (plexifilaments) are first spun and then bonded by heat and pressure, without binders.<ref>{{Cite web |url=http://www.dupont.com/content/dam/dupont/products-and-services/fabrics-fibers-and-nonwovens/industrial-fabrics/documents/DPT_Tyvek_Product_Handbook.pdf |title=Product Handbook for DuPont Tyvek |access-date=2017-12-31 |archive-date=2016-01-09 |archive-url=https://web.archive.org/web/20160109091411/http://www.dupont.com/content/dam/dupont/products-and-services/fabrics-fibers-and-nonwovens/industrial-fabrics/documents/DPT_Tyvek_Product_Handbook.pdf |url-status=dead }}</ref>

Tyvek is also:

* Lightweight
* Has a Class 1 [[flammability]] rating. "When exposed to a flame, Tyvek (R) shrinks away rapidly. If the flame is made to follow the shrinking sheet, Tyvek (R) will melt at 275 F (135 C)" <ref name="auto">"DuPont™ Tyvek® CommercialWrap" Product Information Sheet.</ref><ref>"Material Safety Data Sheet TYVEK (R) SPUNBONDED OLEFIN (ALL STYLES)", DuPont Australia.</ref> and will burn at  750°F (400°C)<ref name="auto"/>
* Chemical-resistant
* Dimensionally stabilized
* [[Opacity (optics)|Opaque]]
* Has a neutral [[pH]]
* Tear-resistant

==Uses==

=== Construction/engineering ===
[[File:Newone_-_FedEx_Tyvek_envelope.jpg|thumb|Tyvek envelopes]]
* Large sheets of Tyvek are frequently used as [[housewrap]] to provide an air barrier between the outer cladding of a structure and the frame, insulation, etc., allowing water vapor to pass but restricting air infiltration.<ref>DuPont: [http://www.dupont.com/products-and-services/construction-materials/tyvek-building-envelopes.html Tyvek Weatherization Systems] [https://web.archive.org/web/20090228064001/http://www2.dupont.com/Tyvek_Weatherization/en_US/index.html archive] [http://www.dupont.com/content/dam/assets/products-and-services/construction-materials/assets/Architectural%20Binder/Residential%20Products%20Brochure%20K10844.pdf Pdf] {{Webarchive|url=https://web.archive.org/web/20180412045636/http://www.dupont.com/content/dam/assets/products-and-services/construction-materials/assets/Architectural%20Binder/Residential%20Products%20Brochure%20K10844.pdf |date=2018-04-12 }}</ref>
* Tyvek was used to cover and protect the [[Reaction Control System]] (RCS) thruster ports from water and debris, while the shuttle stack was exposed on the launchpad during the latter years of the [[Space Shuttle]] program.<ref>{{cite web |url= https://ntrs.nasa.gov/citations/20120014272 |title= Aerodynamics and Debris Transport for the Space Shuttle Launch Vehicle |publisher= [[Ames Research Center |NASA Ames Research Center]] |first1= Stuart E. |last1= Rogers |date= May 22, 2012 |format= PDF |access-date= October 16, 2023}}</ref> The Tyvek covers were dislodged shortly after ignition and before the shuttle cleared the tower, posing no strike risk as the shuttle was travelling below {{cvt|100|mph}}.<ref>{{Cite AV media|url=https://www.youtube.com/watch?v=zhuGwQq7qZk&t=35s |archive-url=https://ghostarchive.org/varchive/youtube/20211222/zhuGwQq7qZk |archive-date=2021-12-22 |url-status=live|title=Dashcam on a Space Shuttle - FRONT WINDOW launch|date=2 March 2011|via=YouTube}}{{cbignore}}</ref>
* [[Tom Sachs (artist)|Tom Sachs]] used Tyvek for the outer shell of the spacesuits used in his Space Program series of artworks.<ref>{{cite web|url=https://www.forbes.com/sites/jonathonkeats/2016/10/07/tom-sachs-ybca/|title=Artist Tom Sachs' DIY Space Program Is Outmaneuvering Elon Musk And NASA With Plywood And Tyvek|first=Jonathon|last=Keats|website=Forbes}}</ref>

=== Shipping ===

*Tyvek is used by the [[United States Postal Service]] for some of its [[United States Postal Service#Priority Mail|Priority Mail]] and [[United States Postal Service#Express Mail|Express Mail]] [[envelope]]s.<ref>{{Cite web |title=Priority Mail Tyvek Envelope {{!}} USPS.com |url=https://store.usps.com/store/product/shipping-supplies/priority-mail-tyvek-envelope-P_EP_14 |access-date=2023-10-23 |website=store.usps.com}}</ref>
* [[FedEx]] also uses it for some of its document envelopes.

=== Government use ===
* New Zealand used Tyvek for its [[driver's licence]]s from 1986 to 1999.<ref>{{cite web|url=https://nzta.govt.nz/resources/factsheets/54/|title=Upgrading driver licences from paper to photo (Factsheet 54) - NZ Transport Agency|website=nzta.govt.nz}}</ref>

=== Banknotes ===
* [[Costa Rica]] (solely their 20 colones bank note, Z series),<ref>{{Cite web|url=http://au.geocities.com/kai_oceania/costarica252.htm|title=Kai - Costa Rica Tyvek Banknotes|date=January 30, 2006|archive-url=https://web.archive.org/web/20060130230627/http://au.geocities.com/kai_oceania/costarica252.htm |archive-date=30 January 2006 }}</ref> the [[Isle of Man]],<ref>{{Cite web|url=http://au.geocities.com/kai_oceania/isleofman38.htm|title=Kai - Isle of Man Bradvek Banknotes|date=January 30, 2006|archive-url=https://web.archive.org/web/20060130232054/http://au.geocities.com/kai_oceania/isleofman38.htm |archive-date=30 January 2006 }}</ref> and [[Haiti]]<ref>[https://web.archive.org/web/20060130231240/http://au.geocities.com/kai_oceania/haiti.htm Haitian Tyvek Banknotes] 1980 and 1982 issues</ref> have made [[Polymer banknote|banknotes]] from Tyvek. These banknotes are no longer in circulation and have become collector's items.

=== Fashion/personal use ===

* Race bibs, or race numbers are often produced on Tyvek paper, so they are less likely to rip during competition.<ref>{{cite web |url= https://www.racedirectorshq.com/read/race-bibs-guide-18/ |title= Race Bibs: A Buyer's Guide |work= Race Directors HQ |date= October 12, 2023 |access-date= October 16, 2023}}</ref>
* Tyvek is often used in garment and other textile labeling due to high durability and washability.
* Tyvek [[wristband]]s are used at [[music festival]]s, conventions, and like events where age-restricted admission and/or security are concerns,<ref>{{Cite web|url=https://www.idcband.com/en-us/shop-by-use/festivals-concerts-touring/|title=Festivals & Concerts|website=www.idcband.com}}</ref><ref>{{Cite web|url=https://www.wristband.com/ready-made-bands/tyvek/|title=Tyvek Wristbands &#124; Paper Wristbands with Free Shipping}}</ref> as well more generally at as hospitals, resorts, nightclubs, schools, and reunions.
* In 2011, fashion retailer and manufacturer [[American Apparel]] included white Tyvek [[shorts]] as part of its range.<ref>{{cite web|url=http://store.americanapparel.net/rsaj401.html?cid=175|title=Tyvek Short - Shop American Apparel|archive-url=https://web.archive.org/web/20110716155811/http://store.americanapparel.net/rsaj401.html?cid=175|archive-date=16 July 2011}}</ref>
* In 1976, fashion house [[Fiorucci]] made an entire collection out of Tyvek.<ref>{{Cite news|url=http://www.doranix.com/what-is-tyvek/|title=What is Tyvek? Everything You Need to Know - Doranix|date=2017-06-20|work=Doranix|access-date=2018-11-28|language=en-US}}</ref>
* The [[ultralight backpacking]] community has begun to use Tyvek for the construction of extremely light yet durable backpacks and tarps.<ref>{{cite web|url=https://backpackinglight.com/forums/topic/18758/|title=Tyvek Backpack|last=McNall|first=Ralph|work=Forum Post}}</ref>{{better source needed|date=February 2022}} In 2012, The Open Company released a foldable city map made of one of the stiffer variants of Tyvek.<ref>{{cite web|url=http://boingboing.net/2012/01/31/clever-folding-tyvek-san-franc.html|title=Clever-folding tyvek San Francisco map, with out-of-the-way landmarks|last=Doctorow|first=Cory|work=Blog Post|publisher=Boing Boing|access-date=5 September 2012|date=February 2012}}</ref>
* Increasingly, reused Tyvek material is being used by home crafters. Protective sleeves for [[CD]]s and [[DVD]]s, tote bags,<ref>{{cite web|url=http://www.dupont.com.au/products-and-services/packaging-materials-solutions/Tyvek-envelopes/products/Disc-packaging-sleeves.html|title=DuPont Tyvek for Disc Packaging Sleeves|access-date=2018-07-31}}</ref> and [[origami]] wallets<ref>{{YouTube|oQGJbP92NRI|How to make a Tyvek Wallet}}</ref> also use Tyvek-containing materials.
* Tyvek is also used as a durable fabric in shoes.<ref>{{cite web|url=http://en.theutlab.com/web/lightwing/|title=The LIGHT WING - the UTLab Shoes Official Store &#124; THEUTLAB.com|archive-url=https://web.archive.org/web/20130628030506/http://en.theutlab.com/web/lightwing/|archive-date=2013-06-28|url-status=dead|access-date=2013-06-17}}</ref><ref>{{cite web|url=https://www.nytimes.com/2014/08/31/business/Shoes-made-with-Tyvek.html|title=No Canvas, No Leather: A Reboot for the Sneaker|date=31 August 2014|work=The New York Times}}</ref>

=== Medical ===
* Tyvek is extensively used for laboratory and medical packaging as the material withstands conditions such as [[Gamma ray|gamma]] irradiation or [[ethylene oxide]] gas which are used to sterilize equipment and surgical devices.<ref>{{Cite journal|date=1982|title=New Products and Services|journal=Infection Control|volume=3|issue=4|pages=342–348|jstor=30146417|doi=10.1017/S0195941700056459|s2cid=249000467 |url=https://docs.lib.purdue.edu/cgi/viewcontent.cgi?article=1898&context=atg|url-access=subscription}}</ref><ref>{{cite web |title=Medical Device Packaging {{Pipe}} DuPont Tyvek 1073B |url=http://www.dupont.com/products-and-services/packaging-materials-solutions/pharmaceutical-packaging/brands/tyvek-sterile-packaging/products/tyvek-1073b-medical-device-packaging.html |website=DuPont USA |access-date=2 July 2019 |archive-url=https://web.archive.org/web/20180916114301/http://www.dupont.com/products-and-services/packaging-materials-solutions/pharmaceutical-packaging/brands/tyvek-sterile-packaging/products/tyvek-1073b-medical-device-packaging.html |archive-date=16 September 2018 |url-status=live}}</ref>
* [[NSW Police]], Australia uses Tyvek overalls to preserve the integrity of forensic evidence at a crime scene, while also protecting "the wearer from the risk of exposure to biological substances, dirt and liquid splashes."<ref>{{Cite web|url=http://www.dupont.co.za/products-and-services/personal-protective-equipment/chemical-protective-garments-accessories/case-studies/soco.html|title=Crime scene protection with DuPontTM Tyvek {{!}} DuPont South Africa|last=workflow-process-service|website=www.dupont.co.za|language=en|access-date=2018-11-28}}</ref>

=== Personal protective equipment (PPE) ===
[[File:Tyvek_Suits_(cropped).jpg|thumb|Tyvek coveralls]]
* Tyvek [[Jumpsuit|coveralls]] are one-piece garments used for [[personal protective equipment]]. They are usually white, commonly worn by mechanics, oil industry workers, painters, insulation installers, and laboratory and [[cleanroom]] workers where disposable, one-time use [[Boilersuit|coverall]] is needed. They are also used for some light [[Dangerous goods|HAZMAT]] applications, such as [[asbestos]] and [[radiation]] work, but do not provide the protection of a full [[hazmat suit]]. Tychem is a sub-brand of Tyvek rated for a higher level of liquid [[Safety|protection]], especially from chemicals. DuPont makes Tyvek clothing in different styles from [[White coat|laboratory coats]] and aprons to complete head-to-toe coveralls with hoods and booties. The latter was notably used by the [[Japan Ground Self-Defense Force]] as emergency limited [[CBRN defense|CBRN]] gear during the [[Fukushima Daiichi nuclear disaster|Fukushima nuclear incident]].<ref>[http://jsw.newpacificinstitute.org/?p=7353 Boosting SDF's Nuclear Accident Response Capabilities] {{Webarchive|url=https://web.archive.org/web/20160305094241/http://jsw.newpacificinstitute.org/?p=7353 |date=2016-03-05 }}. ''Japan Security Watch''. July 13th 2011. Accessed 11th October 2014.</ref>
* Tyvek coveralls, coats or bodysuits are often used during pandemics, for example in the 2013–2016 [[Western African Ebola virus epidemic]], and in the [[COVID-19 pandemic]], to protect health care workers from infection.<ref>{{cite web |title=Protective Clothing for Ebola Virus Disease (EVD) |url=https://www.dupont.com/content/dam/dupont/products-and-services/personal-protective-equipment/personal-protective-equipment-landing/documents/DuPont_Ebola_Tech_Bulletin_NA_111014.pdf |website=www.dupont.com |access-date=1 June 2023 |archive-url=https://web.archive.org/web/20150225231041/https://www.dupont.com/content/dam/dupont/products-and-services/personal-protective-equipment/personal-protective-equipment-landing/documents/DuPont_Ebola_Tech_Bulletin_NA_111014.pdf |archive-date=February 25, 2015 |date=2014}}</ref><ref>{{Cite web|url=https://www.dupont.com/news/dupont-response-novel-coronavirus-prevention-and-control.html|title=DuPont Response to Coronavirus Disease (Covid-19)|website=www.dupont.com}}</ref> The Tyvek suits which are most frequently used during the COVID-19 pandemic are sold between $5-$15 USD per piece.<ref>{{cite news|url=https://www.cnbc.com/2020/02/21/coronavirus-dupont-ramps-up-safety-suit-production-amid-china-shortage.html|title=DuPont ramps up safety suit production as coronavirus causes shortages in China|publisher=CNBC|date=2020-02-21|author=Seema Mody}}</ref> Due to a lack of sufficient stock of adequate PPE during the coronavirus crisis, Tyvek PPE became scarce in many places.<ref>{{cite web|url=https://foreignpolicy.com/2020/03/23/us-medical-supplies-coronavirus-appeal-aid/|title=U.S. Appeals to Aid Recipients for Help in Fighting Coronavirus|date=23 March 2020 }}</ref><ref>{{cite web|url=http://sonomacounty.ca.gov/CAO/Press-Releases/Personal-Protective-Equipment-Donations/|title=Personal Protective Equipment Donations &#124; Press Releases &#124; County Administrator's Office &#124; County of Sonoma}}</ref> Tyvek bodysuits are generally meant for one-time use. However, Tychem suits contaminated with the virus [[SARS-CoV-2]] can be disinfected and reused a limited number of times.<ref>{{cite web|title= Cleaning Guidelines for DuPontTM Tychem® garments for COVID-19  | url=https://www.dupont.com/content/dam/dupont/amer/us/en/personal-protection/public/documents/en/Cleaning%20Guidelines%20for%20DuPont(TM)%20Tychem(R)%20Garments.pdf}}</ref>

==See also==
{{Portal|Numismatics}}
* [[Olefin fiber]] (for brand names of related fabrics)
* [[High-density polyethylene]] for material
* [[Flashspinning]] for manufacturing process
{{Clear}}

==References==
{{Reflist|2}}

==External links==
{{Commons category}}
*[http://www.dupont.com/content/dam/dupont/products-and-services/fabrics-fibers-and-nonwovens/industrial-fabrics/documents/DPT_Tyvek_Product_Handbook.pdf Tyvek Product Handbook] {{Webarchive|url=https://web.archive.org/web/20160109091411/http://www.dupont.com/content/dam/dupont/products-and-services/fabrics-fibers-and-nonwovens/industrial-fabrics/documents/DPT_Tyvek_Product_Handbook.pdf |date=2016-01-09 }}
*[https://www.dupont.com/brands/tyvek.html Tyvek] at DuPont
*[<!-- http://www2.dupont.com/NASApp/tyvek/DPPRequestGateway/0/5/?command=ACProductStyleQA&prod=1032 -->http://www.dupont.com/products-and-services/construction-materials/building-envelope-systems/faqs/wb-faq.html DuPont Tyvek WB FAQ]
*[http://www.dupont.co.za/products-and-services/personal-protective-equipment/chemical-protective-garments-accessories/brands/tyvek-protective-apparel.html Tyvek – Because It Makes the Difference]

{{Packaging}}
{{Labeling}}
{{DuPont}}
{{Petroleum industry}}

[[Category:Plastic brands]]
[[Category:Synthetic paper]]
[[Category:Brand name materials]]
[[Category:Nonwoven fabrics]]
[[Category:Technical fabrics]]
[[Category:DuPont products]]
[[Category:Moisture protection]]
[[Category:Products introduced in 1955]]
[[Category:Polyolefins]]
[[Category:Fukushima nuclear accident]]
[[Category:Synthetic paper industry]]