Samsung · Waterproof Personal Electronics Cases
Samsung A51 Waterproof Case
No coating described, and no PFAS statement from the brand.
The product information we reviewed describes thermoplastic polyurethane (TPU), with no water-repellent coating named. Water resistance on products like this usually comes from the material and its seals rather than a surface treatment. The brand has published no PFAS statement for it.
We flunk more products than we pass. This one earned its grade. How we grade
Material
Thermoplastic polyurethane (TPU)
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Microplastic shedding
TPU is a plastic material and can shed microscopic particles over extended use, especially if the case becomes worn or is washed frequently with abrasive cloths. Shedding risk is low under normal handling but increases with mechanical stress.
VOC or off-gassing
New TPU cases may emit trace volatile organic compounds characteristic of the polymer manufacturing process. Odor typically dissipates within hours to days of unpacking; exposure risk is minimal and generally not a health concern.
Seal degradation or leakage failure
Although TPU is durable, port gaskets and adhesive seals can weaken over 12-24 months of regular phone insertion and removal. IP67 protection (typical for this class) assumes proper maintenance and may fail if seals are damaged.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
BPA & bisphenols
TPU does not inherently contain BPA or phthalate plasticizers. No evidence of these compounds in Samsung TPU cases has been reported in literature or regulatory databases.
Source, FDA ↗Heavy metals
Standard TPU cases are typically unpigmented or use approved FDA colorants with no known heavy metal contamination. No cadmium, lead, or antimony issues have been documented in transparent or solid-color TPU phone cases.
Source, FDA ↗The full breakdown
What it's made of and why it matters
This case is thermoplastic polyurethane (TPU), a flexible synthetic polymer chosen for waterproofing because it forms tight seals around edges and ports without rigid brittleness. TPU itself is not known to leach BPA, phthalates, or other endocrine disruptors under normal use conditions. The material does not require chemical coatings for water resistance; the polymer's inherent hydrophobic nature provides the seal. No pigments, dyes, or flame retardants are typical in simple TPU cases of this type.
The brand's record and disclosure
Samsung does not publicly claim PFAS-free status for this accessory and makes no specific material safety disclosure on the product page, which is typical for consumer electronics cases. The company has not faced documented recalls or safety controversies specific to TPU phone cases. Samsung's silence on PFAS for small accessories reflects industry-wide practice rather than evasiveness; most case manufacturers do not test or market PFAS absence in basic TPU products.
How it compares in its category
Waterproof phone cases are commonly made from TPU, silicone, or PVC. TPU is generally preferred over PVC because it avoids phthalate plasticizers, though silicone cases offer similar safety profiles. This Samsung case sits in the mainstream standard for the category; it carries no known advantages or disadvantages versus equivalent TPU cases from other reputable brands like OtterBox or Spigen.
If you buy it
Keep the case away from prolonged direct sunlight to slow UV degradation of the polymer, which can cause yellowing and brittleness over 1-2 years. Do not expose it to temperatures above 60C (140F), as sustained heat can degrade the seal integrity. Periodically inspect port seals for cracks or loosening; replace the case if the seal is visibly compromised. Wash with mild soap and water if you notice dirt buildup around seams, and allow it to air-dry fully before closing.
What we don’t know
- Basis
- Model estimate, 45% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Samsung has made none
Formulations change between production runs, so check the current label. How we grade.
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.