Etuui · Waterproof Personal Electronics Cases
Universal Phone Waterproof Underwater Case Cover | PET | For Apple iPhone SE | Strap
Skip until brand discloses waterproof treatment composition.
PET case with unspecified waterproofing treatment. Unknown coating chemistry poses potential PFAS risk; no brand disclosure or testing available.
The safe swap
Spigen
Spigen Cryo Armor Case for iPhone 15 Pro Max
85/100 safety
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
PET plastic with unspecified waterproof coating
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Waterproof / stain-resistant treatment
water-repellent coating treatments have historically used PFAS.
Category baseline
other is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
The full breakdown
What it's made of and why it matters
This case is constructed from PET (polyethylene terephthalate), a rigid, food-contact-approved plastic commonly used in beverage bottles and phone accessories. PET itself does not leach BPA or phthalates under normal use. However, the product's waterproof coating is unspecified by Etuui, which is the core safety question: waterproof treatments for plastic cases frequently rely on fluorinated compounds (PFAS) to repel water, and these coatings can degrade or leach when exposed to heat, UV, or prolonged moisture contact.
The brand's record and disclosure
Etuui has not published material safety disclosures, PFAS policies, or third-party certifications for this product line. No independent safety recalls or complaints are on record for this specific model. Without voluntary coating composition transparency or third-party testing, buyers have no way to confirm whether the waterproof treatment contains PFAS, non-fluorinated alternatives, or how durable the coating is over time.
How it compares in its category
Generic waterproof phone cases are a high-PFAS-risk category because water resistance almost always requires chemical treatment. Premium brands (Lifeproof, OtterBox) sometimes disclose fluorine-free coatings or provide durability testing; budget options like this one rarely do. Silicone or TPU cases without marketed waterproofing typically avoid the coating hazard entirely, though they offer less water protection.
If you buy it
Avoid exposing the case to high heat (sauna, direct sunlight for extended periods, dishwasher), which can accelerate coating degradation and potential leaching. Rinse only with cool water and air-dry; do not soak for prolonged periods. Replace the case if the coating develops cracks, cloudiness, or peeling. Request material safety data from Etuui directly before purchase; their silence suggests they either don't know the answer or prefer not to disclose it.
Beyond PFAS: other things we checked
Established hazard classes for this product type, assessed from public information. These never change the PFAS grade; a Likely flag caps the Verdict at “Buy with care.”
Fluorinated waterproof coating (PFAS class compounds)
Unspecified waterproof treatment on PET is very likely fluorinated given industry standards. Etuui's refusal to disclose composition prevents confirmation. Risk increases with heat, UV exposure, or case aging.
Coating degradation and microparticle release
Waterproof coatings on plastic phone cases degrade visibly over 12-24 months of use, particularly at seams and impact zones. Peeling or flaking coatings may release microparticles; composition unknown, so hazard class cannot be determined.
BPA/phthalate leaching from base PET
PET itself does not typically leach BPA or phthalates in cool or room-temperature contact with skin or food. Phone case use poses minimal exposure risk from the base plastic alone.
Chemical off-gassing from waterproof treatment
Unspecified coatings may release volatile organic compounds (VOCs), particularly when new or warmed. Odor is the primary indicator; ventilate the case in fresh air for 24-48 hours after unboxing if noticeable smell is present.
Strap material and nickel/metal hardware contamination
Product description does not specify strap material (likely polyester or nylon) or attachment hardware. No independent testing of this model for heavy metals is on record. Standard risk for low-cost electronics accessories, but not documented for this brand.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 45% confidence. It is not a lab result.
No independent PFAS lab test is on record for this exact product. A lab test could move the score in either direction.
The brand has not made a specific, verifiable PFAS-free statement, so part of this score reflects that missing disclosure rather than a confirmed material.
Formulations and coatings change between production runs. Always check the current label before buying.
Safer alternatives in Waterproof Personal Electronics Cases
Spigen
Cryo Armor Case for iPhone 15 Pro Max
TPU (thermoplastic polyurethane) bumper with polycarbonate back panel
Lower PFAS concern; standard phone case materials lack obvious PFAS indicators.
⚠Brand says nothing about PFAS
Spigen
Galaxy S26 Series Mag Fit Case
Thermoplastic polyurethane (TPU) and polycarbonate
Lower concern phone case, no known PFAS risk identified.
⚠Brand says nothing about PFAS
Samsung
Ghostek Nautical Slim Case for MagSafe for Samsung Galaxy S25 Ultra
Polycarbonate and TPU blend (typical phone case polymers)
Lower concern; rigid phone cases rarely use PFAS.
⚠Brand says nothing about PFAS
More waterproof personal electronics cases grades
How we score: every product runs through the same public 0–100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.