Etuui · Waterproof Personal Electronics Cases
Tech-Protect Waterproof Case
Skip until brand discloses waterproof chemistry.
Tech-Protect advertises waterproof protection but does not disclose the coating material or PFAS status. Waterproof cases commonly use Teflon-family coating-based water-repellent coating treatments that may contain PFAS.
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
Waterproof case coating, unspecified
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
Tech-Protect's waterproof coating material is unspecified by the manufacturer, which is the core problem. Waterproof phone and device cases typically use either polyurethane, silicone, or thermoplastic elastomer (TPE) as the base, often with a hydrophobic topcoat. Without Etuii's disclosure, the coating chemistry (whether fluorinated, silicone-based, or synthetic wax) cannot be assessed. This opacity means you cannot evaluate migration risk into skin contact or potential off-gassing in warm environments.
The brand's record and disclosure
Etuii maintains silence on waterproof case chemistry and PFAS use, which is a significant red flag in an industry where fluorochemical water repellents are industry standard. No public certifications (e.g., bluesign, OEKO-TEX, or fluorine-free declarations) are evident. The brand provides no transparency on whether its coating is fluorinated, and no independent testing or third-party safety data have been published. This lack of engagement with chemical transparency suggests either reliance on legacy formulations or deliberate non-disclosure.
How it compares in its category
Waterproof phone cases exist on a spectrum from simple silicone sleeves (lower chemical concern) to heavily treated fabric or coated hardshell cases (higher PFAS and coating leachate risk). Tech-Protect's position is unknown because coating specifics are absent. Competitors like LifeProof and OtterBox publish material data and have begun transitioning away from PFAS; Etuii has not. Without comparative disclosure, this case cannot be ranked reliably against alternatives.
If you buy it
Avoid prolonged skin contact with the coating, particularly on wrists or hands during extended use. Do not submerge in warm water above 40 degrees Celsius, as heat can accelerate leaching of coating components. Replace the case if the waterproof coating shows cracking, peeling, or visible degradation, as this allows underlying materials to shed. Store in a cool, dry place away from direct sunlight to minimize volatile off-gassing and coating breakdown.
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 water-repellent coating (PFAS family)
Waterproof cases commonly use fluorochemicals; Etuii's silence strongly suggests PFAS-based treatment. Direct skin contact with coatings can transfer fluorinated compounds over time.
Coating leachates into mouth/skin (non-PFAS)
Unidentified polyurethane, silicone, or synthetic binders in the coating may migrate into skin or saliva with warmth or moisture. Plasticizers and tackifiers in elastomer coatings are of concern.
Volatile organic compound off-gassing
Waterproof coatings off-gas solvent residues and curing byproducts; unspecified formulations may include isocyanates, acetone, or other irritants, especially in warm environments.
Coating degradation and microparticle shedding
Waterproof case coatings degrade with UV, heat, and mechanical stress. Peeling or cracking coatings can shed fragments into pockets, bags, or skin contact areas.
Base polymer leaching (if TPE or PVC)
If the underlying case is PVC or chlorinated TPE, phthalates or chlorine byproducts may leach, especially if heat is applied or case contacts oily skin.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 35% 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.