Motorola · Waterproof Phone Cases
MN-UN4 Universal Waterproof Case for Motorola
No coating described, and no PFAS statement from the brand.
The product information we reviewed describes plastic case, 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
Plastic case
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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What MN-UN4 Universal Waterproof Case Motorola is made of, ingredients and materials
The MN-UN4 is a rigid plastic case, most likely polycarbonate or a polycarbonate/acrylonitrile butadiene styrene (PC/ABS) blend, chosen for impact resistance and optical clarity. These base plastics are generally stable at room temperature and do not leach BPA or phthalates under normal phone use. The waterproofing comes from sealed seams, gaskets, and the inherent water resistance of the plastic material itself, not from applied Teflon-family coating coatings. No special surface treatments or glazes are documented for this product category.
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.
Microplastics
If the plastic becomes cracked, stressed, or heavily worn over several years, small fragments could shed. This is a concern only with long-term mechanical wear, not chemical leaching, and does not pose a health hazard unless swallowed in large quantity (highly unlikely with a phone case).
Source, EPA ↗Off-gassing of volatile organic compounds (VOCs) or odors
New polycarbonate or PC/ABS cases may release mild plastic odors (volatile hydrocarbons) in the first few days or weeks, especially if stored in warm conditions. This is temporary and not a health hazard, but can be reduced by airing the case in a well-ventilated area before first use.
Gasket or seal material degradation
Rubber or silicone gaskets may contain undisclosed additives (plasticizers, colorants) and can degrade or shrink with age or UV exposure, compromising the waterproof seal over 2-3 years. Replacement is straightforward and inexpensive if available.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
BPA & bisphenols
Polycarbonate and PC/ABS base resins used in phone cases do not inherently contain BPA or phthalates, and no recalls or testing evidence for this product exists. Leaching risk is negligible because the case does not contact food or prolonged skin contact.
Source, FDA ↗Heavy metals
No testing or recalls document heavy metal contamination in Motorola cases. Modern polycarbonate and ABS resins in consumer electronics typically avoid cadmium, lead, and mercury stabilizers, replaced by alternatives with lower toxicity concern.
Source, FDA ↗How is this PFAS grade calculated?
The brand's record and disclosure
Motorola has not issued public statements about PFAS use or avoidance in accessory products, and no third-party testing of this specific case for hazardous coatings or leachates is on record. The brand does not market this case with chemical certifications (e.g., FDA food-contact compliance or heavy-metal testing). For accessories of this type, detailed disclosure is uncommon across the industry.
How it compares in its category
Waterproof phone cases typically carry lower chemical risk than cookware or food-storage products because they do not contact food, lips, or skin continuously, and never experience high heat. Most competing cases (OtterBox, Spigen, etc.) use similar PC or PC/ABS materials with no reported hazard patterns. This Motorola case sits in the standard-safety tier for the category, with no distinguishing red flags or transparency advantages.
If you buy it
Keep the case away from prolonged direct sunlight and extreme heat (above 60°C / 140°F), which can cause minor stress-cracking in polycarbonate over years of use. Do not expose it to strong solvents (acetone, gasoline) that may degrade the plastic. Replace the gaskets or case if you notice cracks, discoloration, or loss of seal integrity. Routine cleaning with mild soap and warm water is a recommended maintenance approach.
What is not known about PFAS in this product?
- Basis
- Model estimate, 35% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Motorola has made none
Formulations change between production runs, so check the current label. How we grade.
What are the PFAS-free alternatives to MN-UN4 Universal Waterproof Case for Motorola?
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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.