DuPont Tychem 4000 Coverall Review (2026)
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★★★★☆ 4.3/5
Reviewed by Steven Eaton, WC Safety Editorial
| Fabric | Saranex 23-P laminated Tyvek (Tychem 4000) |
|---|---|
| Configuration | Attached hood, taped seams, elastic wrists and ankles |
| Protection | Chemical splash with a substantially broader permeation-tested holdout list than PE-coated entry suits |
| Color | White |
| Sizes | One stocked configuration — size options on the linked Amazon listing |
| Single-use | Yes — disposable |
| From | $259.19 |
| SKU | SL122T |
The DuPont Tychem 4000 coverall is a white disposable protective suit built on Saranex 23-P laminated Tyvek. The Tychem 4000 is where seams start mattering as much as fabric: its Saranex laminate widens the chemical holdout list, and the taped seams eliminate the stitch-hole leaks that serged suits accept. It is the middle rung of the Tychem ladder — past incidental splash, not yet at the 6000's heavy-barrier tier. Our listing starts at $259.19, with the size run on the linked Amazon page.
Why the DuPont Tychem 4000 Stands Out
The Tychem 4000 is where seams start mattering as much as fabric: its Saranex laminate widens the chemical holdout list, and the taped seams eliminate the stitch-hole leaks that serged suits accept. It is the middle rung of the Tychem ladder — past incidental splash, not yet at the 6000's heavy-barrier tier.
Fabric, Configuration and Protection
Chemical splash with a substantially broader permeation-tested holdout list than PE-coated entry suits — and taped seams that close the stitch-hole leak path. Configuration: attached hood, taped seams, elastic wrists and ankles. Always verify your specific chemical and exposure time against DuPont's permeation data before standardizing. Like every disposable garment, it is a single-exposure product — once contaminated, it comes off at the work boundary and enters the waste stream your standard requires.
Fit follows the disposable-coverall rule: order one size over street clothes so the suit survives crouching and reaching. Elastic interfaces seal approximately, not absolutely — for regulated work, tape the glove and boot junctions and treat the suit as one layer of a system that includes hazard-matched gloves, eye protection, and the respirator your assessment names.
Where It Falls Short
Its limits: Light splash work — the Tychem 2000 does that job at a fraction of the price; and check the 6000 when the chemical list gets aggressive. No disposable coverall is a submersion garment, an arc-flash layer, or a substitute for the engineering controls that come first in the hierarchy.
Pros and Cons
Pros
- Saranex 23-P laminated Tyvek matched to a clearly defined hazard
- Attached hood, taped seams, elastic wrists and ankles
- Listed from $259.19 with live Amazon pricing
- Single-use discipline — no decontamination ambiguity
Cons
- Disposable garment — not for exposure beyond its rating or duration
- Costs several times the entry-tier splash suits
Who Should Buy It
Order the DuPont Tychem 4000 if you are chemical handlers whose permeation tables rule out PE-coated entry suits — stronger organics and inorganics with real exposure windows.
Who Should Skip It
Skip it for light splash work — the Tychem 2000 does that job at a fraction of the price; and check the 6000 when the chemical list gets aggressive.
How It Compares
The Tychem 2000 is the serged-seam, PE-coated entry point; the 4000 upgrades both fabric and seams. If your chemical is on both suits' holdout lists at your exposure time, the 2000 saves real money. Both sit inside the field ranked in our best disposable coveralls guide, and the disposable coveralls collection carries the full ladder from breathable particle suits to taped-seam chemical barriers.
Other Coveralls to Consider
- KleenGuard A60 Bloodborne Pathogen & Chemical Splash Coverall
- KleenGuard A70 Hooded Chemical Spray Protection Coverall
- 3M 4515 Disposable Protective Coverall
- DuPont Tychem 2000 Hooded Chemical Splash Coverall
- 3M 4530 Disposable Coverall
- 3M 4520 Disposable Protective Coverall
- 3M 4510 Disposable Protective Coverall
- KleenGuard A40 Liquid & Particle Protection Coverall
- KleenGuard A20 Breathable Particle Protection Coverall
- DuPont Tychem 6000 Chemical-Resistant Coverall
Coverall Guides
- Best Disposable Coveralls Buyer's Guide
- Tyvek vs Tychem Coveralls
- Disposable Coverall Types Explained
- FR Disposable Coveralls Explained
- Best Respirator for Asbestos
- When Do You Need a Respirator?
Browse by Category
- Disposable Coveralls Collection
- Respiratory Protection Collection
- Mold Remediation Respirators
- Paint Spray Respirators
- Chemical-Resistant Gloves
- Safety Goggles Collection
Frequently Asked Questions
What is the DuPont Tychem 4000 coverall rated for?
Chemical splash with a substantially broader permeation-tested holdout list than PE-coated entry suits — and taped seams that close the stitch-hole leak path. The rating, not the price, picks the suit — match it to your hazard assessment.
What fabric is the DuPont Tychem 4000 made of?
Saranex 23-P laminated Tyvek (Tychem 4000). That fabric choice is the core of what it protects against and how it wears.
What sizes does the DuPont Tychem 4000 come in?
Our listing carries one stocked configuration; the linked Amazon page lists the available sizes. Order one size over street clothes — undersized coveralls tear at the crotch and shoulders.
Is the DuPont Tychem 4000 reusable?
No. It is a single-use garment: once worn against the hazard it was chosen for, it is doffed at the work boundary and disposed of per the governing standard.
DuPont Tychem 4000 vs Tychem 2000 — which should I buy?
The Tychem 2000 is the serged-seam, PE-coated entry point; the 4000 upgrades both fabric and seams. If your chemical is on both suits' holdout lists at your exposure time, the 2000 saves real money.
Does the DuPont Tychem 4000 have a hood?
Yes — attached hood, taped seams, elastic wrists and ankles
What respirator should I pair with the DuPont Tychem 4000?
The hazard that picked the suit picks the respirator: P100 filters for dusts, fibers, and mold; chemical cartridges for vapors and spray. Start with our when-do-you-need-a-respirator guide and the respiratory protection collection.
Are the seams on the DuPont Tychem 4000 sealed?
Attached hood, taped seams, elastic wrists and ankles. Serged seams suit particulate duty; taped seams close the stitch-hole leak path chemical work demands — that distinction is exactly where the Tychem 4000 and 6000 earn their premium.
How much does the DuPont Tychem 4000 cost?
From $259.19 on the linked Amazon listing; check the listing for the pack count at your size. Prices track the live listing.
Is the DuPont Tychem 4000 waterproof?
Its laminate resists liquid splash within its rating, but it is not a rain or immersion garment.
Can I wear the DuPont Tychem 4000 for asbestos or mold remediation?
For regulated abatement, crews spec a hood-and-boots Tyvek 400 TY122S so there is no gap at the footwear; this suit serves other duties better.
What color is the DuPont Tychem 4000, and does color matter?
White. Color is convention, not protection — white for particulate suits, yellow for chemical garments, blue for biological and site-visibility roles.
Can I wear the DuPont Tychem 4000 over regular work clothes?
Yes — that is the intended use. Coveralls layer over clothing; size up so the seams are not loaded when you crouch.
What do I do with the DuPont Tychem 4000 after use?
Doff at the boundary of the work area, folding the contaminated surface inward, and dispose per the standard that governs your hazard — regulated waste for asbestos, lead, or biological work; general industrial waste otherwise.
Where does the DuPont Tychem 4000 fit in the WC Safety coverall lineup?
See how it ranks against all ten picks in the best disposable coveralls guide, or browse the disposable coveralls collection for the full fabric ladder.
The Bottom Line
The DuPont Tychem 4000 earns its slot in the lineup: chemical splash with a substantially broader permeation-tested holdout list than pe-coated entry suits in a disposable garment at a defensible price. Always verify your specific chemical and exposure time against DuPont's permeation data before standardizing. Rated 4.3/5 on grade, configuration, and value for the intended hazard.
About the Author
Steven Eaton is the founder of WC Safety and an industrial PPE specialist who sources and evaluates protective clothing for industrial, remediation, and emergency-response buyers.
How We Review
Reviews draw on manufacturer technical data sheets, published certification claims (Type 5/6, ASTM F1670/F1671), and product documentation. We do not run lab tests or fabricate specs; ratings reflect grade, configuration, and value for the intended hazard.
Affiliate Disclosure
WC Safety is an Amazon Associate and earns commissions on qualifying purchases through links on this page. Affiliate relationships do not influence our ratings.
Editorial Standards
Claims are drawn from manufacturer data and published standards. WC Safety does not invent specifications or test results. Report errors to safetynw2012@gmail.com.