Canon · Waterproof Camera & Lens Cases
Canon WP-DC43 Underwater Camera Housing
Skip. Waterproof housing likely treated with undisclosed PFAS.
Underwater housings typically use water-repellent coating coatings to seal against water intrusion. Canon does not disclose chemical composition or PFAS status for this product's waterproofing treatment.
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 housing, rubber seals, unknown waterproof treatment
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-DC43 is a polycarbonate rigid housing with elastomer rubber seals designed to create an underwater pressure barrier. Polycarbonate itself is generally stable and non-leaching during normal use at room temperature. The critical unknown is the waterproof surface treatment applied to seals or internal coatings; such treatments in waterproof housings commonly use PFAS-based hydrophobic agents to maintain seal integrity under pressure and saltwater exposure. No public documentation from Canon discloses the chemical composition of these coatings.
The brand's record and disclosure
Canon has not published transparency reports on PFAS use in camera housings or accessories. The company maintains general environmental policies but provides no specific material declarations for the WP-DC43. No recalls or safety warnings specific to this housing are on public record. Canon's silence on waterproof treatment chemistry is consistent with industry practice but leaves end-users without informed choice about exposure risk.
How it compares in its category
Underwater camera housings universally require hydrophobic treatments to function; virtually all rigid polycarbonate housings from Canon, Nikon, and third-party makers use similar sealed-system designs. Few manufacturers disclose waterproof chemistry. Third-party housings (e.g., Ikelite, Nauticam) occasionally provide material specs but rarely confirm PFAS-free formulations. This product is unremarkable in its category transparency gap.
If you buy it
Inspect seals before each use for cracks or degradation; worn seals lose waterproof function and may require replacement. Rinse with fresh water after saltwater use to prevent corrosion and salt-induced seal breakdown. Store dry in a cool place; avoid extended UV exposure, which can degrade polycarbonate clarity and seal elasticity over years. Do not attempt to disassemble or chemically clean internal coatings, as this may degrade waterproofing.
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.”
Polycarbonate photodegradation and clarity loss
Polycarbonate housings yellow and become brittle under prolonged UV or high-temperature storage. This reduces optical clarity and increases crack risk under pressure, potentially compromising waterproof seal integrity. No accelerated aging data specific to the WP-DC43 is publicly available.
Rubber seal degradation
User reports and forums document elastomer seals on Canon housings hardening or losing compression after 3-5 years of use, particularly in saltwater environments. Degraded seals can allow water ingress. Replacement seals are available from Canon but timing depends on usage intensity.
Undisclosed waterproof coating chemicals
The waterproof hydrophobic treatment on housing surfaces and seals is not disclosed by Canon. PFAS-based coatings are standard in this application class. Users cannot assess inhalation or dermal contact risk if housing is damaged or opened, or leaching risk if seals degrade in freshwater storage.
Pressure-related microcracking
Repeated deep dives or rapid pressure changes can cause micro-fractures in polycarbonate, especially at screw threads and seal interfaces. These fractures may not be visible but can allow gradual water seepage. No strength degradation timeline is provided by Canon.
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.