Chemical Protection & Cleanroom Products

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DuPont™ Tyvek® 400 D


DuPont™ Tyvek® 400 D Pants. Open Ankles. Elastic Waist. Serged Seams. Tyvek® 400 Front, ProShield® 10 Back

Full Part Number :

TD350SWBxx0050yy (xx=size;yy=option code)  Help

Fabric / Material :

Tyvek® 400 D

Design :

Dual Pants

Seam :


Color :

White Front, Blue Back

Quantity/Box :

50 per case

Sizes :

MD, LG, XL, 2X, 3X, 4X, 5X

Option Codes :


DuPont™ Tyvek® 400 D garments combine the protection, durability and comfort of DuPont™ Tyvek® fabric on the front and the comfort, softness and breathability of DuPont™ ProShield® 10 fabric on the back. The DuPont™ Tyvek® 400 D garments are suitable for applications where comfort requirements are combined with limited protective requirements for frontal exposures. Garments are available in a variety of styles. Applications include fiberglass and composite manufacturing, wind turbines, boat construction and repair, remediation, and maintenance.

  • Pants with open ankle and elastic at waist for easy donning and removal.
  • Suitable for applications that do not require the full body coverage of a coverall.



  • The garment shall be constructed of DuPont™ Tyvek® 400-- a patented flash-spun polyethylene fabric -- in the front and DuPont™ ProShield® 10 -- a spun-bond, meltblown, sun-bond (SMS) nonwoven in the back.
  • The garment shall be white in color in the front and denim blue in color in the back.
  • The garment shall be a pants design.
  • The garment shall have serged seams.
  • The garment shall have an elastic waist.
  • The garment shall have open ankles.


Size Inseam Waist Opening
MD 27 1/2 23 1/2
LG 28 24 3/4
XL 28 3/4 25 1/2
2X 29 1/2 26 1/2
3X 30 27 1/2
4X 30 3/4 28 1/4
5X 31 1/4 29


  • Wear other appropriate PPE such as, but not limited to, respiratory, eye, head, hand, and foot protection based on the hazard assessment.
  • This garment only provides partial body coverage. It may be worn in combination with other chemical resistant PPE as required based on the hazard assessment.


Data relating to mechanical performance of the fabrics used in DuPont chemical protective clothing, listed for the selected garment according to the test methods and relevant European standard, if applicable. Such properties, including abrasion and flex-cracking resistance, tensile strength and puncture resistance can help in the assessment of protective performance.

Property Test Method Result
Thickness Tyvek® - ASTM D1777
ProShield® 10 - ASTM D1117
5.9 mils
12 mils
Basis Weight Tyvek® - ASTM D3776
ProShield® 10 - ASTM D3776
1.2 oz/yd2
1.3 oz/yd2
Burst Strength - Mullen Tyvek® - ASTM D774
ProShield® 10 - ASTM D3786
50 psi
23 psi
Tear Resistance - Trap Tear (MD) Tyvek® - ASTM D5733
ProShield® 10 - ASTM D5733
6 lbf
4.5 lbf
Tear Resistance - Trap Tear (CD) Tyvek® - ASTM D5733
ProShield® 10 - ASTM D5733
5 lbf
7 lbf
Breaking Strength - Grab (MD) Tyvek® - ASTM D5034
ProShield® 10 - ASTM D5034
18 lbf
17 lbf
Breaking Strength - Grab (CD) Tyvek® - ASTM D5034
ProShield® 10 - ASTM D5034
22 lbf
14 lbf
Hydrostatic Head Tyvek® - AATCC 127
ProShield® 10 - AATCC 127
45" H2O
20" H2O
Surface Resistivity (25°C / 55& RH) Tyvek® - ASTM D257
ProShield® 10 - ASTM D257
<6.3 x10^9 ohms/square
<6.3 x10^9 ohms/square
Wearing Apparel Flammability Tyvek® - 16 CFR 1610
ProShield® 10 - 16 CRF 1610
Class 1
Class 1


  • *Intended for use in applications with frontal exposures as only the body front, leg front, arms and hood are made with DuPont™ Tyvek® fabric. Portion not comprised of Tyvek® fabric is more breathable and porous.
  • *Serged and bound seams are degraded by some hazardous liquid chemicals, such as strong acids, and should not be worn when these chemicals are present.
  • *Liquid barrier performance varies based on the amount of liquid that may get on the garment, the length of time the liquid is on the garment, applied pressure and certain physical properties of the liquid. Tyvek®400, Tyvek® 400 D, ProShield®, ProShield® 10, ProShield® 60, Tyvek® 400 FC, and ProShield® 70 garments are not appropriate if during use they are getting wet (liquid is dripping or running, or it is wet to the touch) or if spotting is observed on skin or garments worn under the protective garment. Tyvek® 500 and Tyvek® 600 offer improved liquid barrier, but may not be appropriate if spotting is observed on the skin or garments worn under the protective garment. In applications where a higher liquid barrier is needed, consider Tychem® 2000 and Tychem® 4000 garments with taped seams.
  • *CAUTION: This information is based upon technical data that DuPont believes to be reliable. It is subject to revision as additional knowledge and experience are gained. DuPont makes no guarantee of results and assumes no obligation or liability in connection with this information. It is the user's responsibility to determine the nature and level of hazards and the proper personal protective equipment needed. The information set forth herein reflects laboratory performance of fabrics, not complete garments, under controlled conditions. It is intended for information use by persons having technical skill for evaluation under their specific end-use conditions, at their own discretion and risk. Anyone intending to use this information should first verify that the garment selected is suitable for the intended use. In many cases, seams and closures have shorter breakthrough times and higher penetration rates than the fabric. Please contact DuPont for specific data. These garments are intended for limited use and should be disposed of after single use. If fabric becomes torn, abraded or punctured, or if seams or closures fail, or if attached gloves, visors, etc are damaged, end user should discontinue use of garment to avoid potential exposure.