Ghostek · Waterproof Phone Cases
Ghostek iPhone 16 Waterproof Case Military Grade 10FT Drop Protection — NAUTICAL
Waterproof cases often use PFAS coatings. Ghostek discloses nothing about it.
This case uses unknown waterproofing treatment typical of the category. No PFAS disclosure from brand; high uncertainty on actual chemical composition.
The safe swap
Urban Armor Gear
Urban Armor Gear Plyo iPhone 15 Pro Case
85/100 safety
Same rubric that flunked this product. The swap earned Excellent.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
TPU/polycarbonate blend with unspecified waterproof treatment
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What’s concerning
Waterproof / stain-resistant treatment
water-repellent coating treatments have historically used PFAS.
Category baseline
other is a category where PFAS exposure is more common.
Vague safety claims only
Uses vague language ("eco-friendly", "clean") without a specific PFAS statement.
Waterproof coating leaching
The unspecified waterproof treatment is the primary unknown. If PFAS-based (likely but unconfirmed), prolonged contact with skin or food-contact surfaces could pose exposure risk. Degradation over 1-2 years of use is probable without disclosed replacement guidance.
Coating failure and micro-abrasion
As the waterproof layer degrades, small particles may flake off. While toxicologically uncharacterized, the mechanical integrity of the seal is the primary concern; failed waterproofing defeats product function and may trap moisture internally.
Lack of safety certification or third-party testing
The brand provides no evidence of FDA, CE, or independent safety testing. Military-grade drop claims are marketing language without accreditation. This absence does not prove hazard but prevents verification of material safety.
What’s reassuring
TPU degradation and off-gassing
TPU can off-gas volatile organic compounds (VOCs) under heat or UV, particularly cheaper formulations. Ghostek does not disclose the TPU grade or additives. No recalls or reports of odor-related complaints are on record for this product.
Polycarbonate leaching
Polycarbonate can leach BPA or similar bisphenols if exposed to heat or acidic contact. Ghostek does not specify if BPA-free formulations are used. Direct food contact is unlikely, but sweat and salts may facilitate minor leaching over time.
The full breakdown
What it's made of and why it matters
This case is a TPU (thermoplastic polyurethane) and polycarbonate blend, materials chosen for impact absorption and rigidity. The waterproof seal relies on an unspecified chemical treatment, common in this category but opaque in composition. TPU itself is generally stable, but the waterproofing additive is the unknown variable. Over time and with UV exposure, the coating can degrade, potentially releasing or leaching components into contact with skin or water.
The brand's record and disclosure
Ghostek does not publicly disclose the chemical composition of its waterproof treatments or provide third-party safety testing documentation. No major recalls for leaching or toxicity have been established for this specific product line. The brand's silence on PFAS use is typical of the phone accessory industry but represents a transparency gap that prevents informed assessment of long-term safety.
How it compares in its category
Waterproof phone cases uniformly rely on hydrophobic coatings, most commonly PFAS-based due to their effectiveness. Ghostek is mid-market; premium alternatives (e.g., Lifeproof, OtterBox) also lack disclosure but often carry more rigorous third-party testing claims. Budget cases often use lower-cost coatings with less durability. This product sits in the mainstream category where PFAS use is industry standard but unconfirmed.
If you buy it
Avoid prolonged skin contact with the exterior in warm or wet conditions, as the coating may leach under stress. Do not expose to sustained heat (e.g., in hot cars) as TPU can soften and the waterproof layer may break down. Replace if the surface becomes visibly cracked, peeling, or discolored. Rinse with fresh water after saltwater exposure and allow to air-dry; do not use solvents or high heat.
What we don’t know
- Basis
- Model estimate, 42% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Ghostek has made none
Formulations change between production runs, so check the current label. How we grade.
Safer alternatives in Waterproof Phone Cases
Blackview
C03 Leather Protective Case with Shoulder Strap For Active 7/Active 10 Pro
leather (primary material), shoulder strap
Lead
Limited concern
Synthetic dyes and colorants in leather and strap fabric
Limited concern
Volatile organic compounds (VOCs) from tanning and finishing
Moderate concern
Formaldehyde / VOCs
Limited concern
Lower concern. Leather cases rarely treated with PFAS.
⚠Brand says nothing about PFAS
Griffin
Survivor Case with Belt Clip for Apple iPhone 4/4S GB01902
Polycarbonate, silicone, TPE
Volatile organic compound (VOC) off-gassing
Limited concern
Lower concern phone case.
⚠Brand says nothing about PFAS
Griffin
Survivor Strong for iPhone 11 Pro GIP-023
TPU, polycarbonate, recycled plastic
Heavy metals
Limited concern
VOC off-gassing (polycarbonate/TPU)
Limited concern
Phone case materials lower concern.
⚠Brand says nothing about PFAS
More waterproof phone 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.