Canon · Waterproof Camera & Lens Cases
Canon WP-DC20 Waterproof Case for Powershot S1 IS
Waterproof cases often use PFAS coatings; Canon discloses nothing.
This waterproof camera case likely contains water-repellent coating or waterproof coatings typical of the category, which frequently rely on PFAS. Canon provides no material disclosure or PFAS commitments for this product.
The safe swap
GoPro
GoPro Mission 1 Protective Housing
85/100 safety
Same rubric that flunked this product. The swap earned its B.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Polycarbonate/urethane case with waterproof seals, 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
The WP-DC20 is molded polycarbonate (a durable rigid plastic) with urethane elastomer seals and an unspecified hydrophobic surface coating. Polycarbonate itself is stable and does not leach BPA under normal conditions (this product predates heavy BPA scrutiny and contains no internal food contact). The critical unknown is the waterproof topcoat: manufacturers often apply Teflon-family coating or PFAS-based treatments to achieve water repellency, but Canon has never disclosed the composition.
The brand's record and disclosure
Canon has no public commitment to PFAS avoidance or chemical transparency for accessories. The WP-DC20 is a legacy product (circa 2004-2007 for the PowerShot S1 IS); Canon's material safety documentation for this item is minimal and not publicly archived. The company has faced no major recalls or chemical controversies tied to this specific case, but silence on waterproofing chemistry is standard across the industry for that era.
How it compares in its category
Waterproof camera cases universally rely on hydrophobic coatings or seals; this polycarbonate design is typical. Modern alternatives (neoprene bags, rigid boxes) may use different base materials but face identical PFAS uncertainty in waterproof treatments. Soft silicone cases avoid hard-polymer coating risk but offer less protection. No major brand in this category publicly certifies PFAS-free waterproofing.
If you buy it
Inspect seals annually for cracks or white/cloudy degradation, as deteriorated urethane can allow water intrusion and potential leachate. Do not intentionally submerge beyond the rated depth; water pressure degrades seals over time. Store dry and away from direct heat (above 60C can soften polycarbonate). If the case visibly splits or the coating flakes, retire it; a failing seal is your indicator to replace it, not a sign of acute hazard if used carefully in the interim.
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.”
PFAS in waterproof coating
Waterproof cases of this era commonly use PFAS-based Teflon-family coating treatments; Canon discloses nothing. Coating is external and not in direct contact with camera or food, but degradation over years or exposure to heat could release particles or leachate into hands or environment.
Polycarbonate structural degradation
Polycarbonate yellows and becomes brittle over 10-15 years, especially if stored in sunlight or warm conditions. This can cause cracking, seal failure, and loss of waterproofing function rather than direct chemical toxicity.
Urethane seal degradation and off-gassing
Urethane elastomers can break down over time and release volatile organic compounds (VOCs) with musty or chemical odors. Prolonged storage in warm, humid environments accelerates this. Exposure risk is minimal for brief handling but notable in poorly ventilated storage.
Heavy metals in surface coating pigments
No recalls or public disclosures of lead, cadmium, or other heavy metals in this case's exterior finish. Industry standard for modern polymers and coatings is compliance with RoHS limits, though Canon provides no independent verification.
Bacterial or mold growth in seals
If water is trapped in urethane seals and not fully dried, biofilm can develop, creating musty odors or visible discoloration. This is a maintenance issue, not a manufacturing defect, and poses no acute chemical hazard.
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 Camera & Lens Cases
GoPro
Mission 1 Protective Housing
Polycarbonate and silicone housing, lens glass
Lower concern. Standard action camera housing with minimal PFAS risk.
⚠Brand says nothing about PFAS
More waterproof camera & lens 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.