Black Diamond · Camping Tents & Tarps
Black Diamond Mega Light Tent
Likely contains PFAS with no public verification or brand disclosure available.
This tent's ripstop nylon water-repellent coating finish is standard for outdoor gear waterproofing. Black Diamond hasn't disclosed their specific formulation or PFAS content, and no independent testing exists.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Ripstop nylon with water-repellent coating (water-repellent coating) coating
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What Black Diamond Mega Light Tent is made of, ingredients and materials
The Mega Light uses ripstop nylon fabric, a tightly woven polyamide that resists tearing and is lightweight for backpacking. The water-repellent coating (water-repellent coating) coating applied to this nylon is the primary chemical concern; most tent water-repellent coating treatments historically use fluorocarbon compounds (PFAS family) to achieve water shedding without adding bulk. Nylon itself is stable under normal use conditions and does not off-gas volatile organic compounds (VOCs) at ambient temperatures.
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.
Waterproof / stain-resistant treatment
Water-repellent coating treatments have historically used PFAS.
PFAS
Virtually all commercial ripstop nylon tents use fluorocarbon-based water-repellent coating. No brand disclosure available for Mega Light; outdoor-only exposure and no ingestion route limit direct risk, but PFAS can persist in environment and bioaccumulate if coating flakes or tent is eventually discarded.
Source, ATSDR ↗Nylon fabric degradation and microfiber shedding
Over 5-10 years, ripstop nylon can develop small tears and shed microfibers, especially in UV-exposed areas or during high-abrasion ground contact. No toxicological concern from the fibers themselves, but microplastic accumulation in outdoor environments is an established environmental pathway.
What’s reassuring
Metal pole corrosion and coating wear
Black Diamond Mega Light typically uses anodized aluminum or fiberglass poles. Anodizing is a stable, non-toxic surface treatment. No heavy metal leaching or corrosion byproducts have been reported with normal use and storage.
Seam-seal adhesives and off-gassing
Modern tent seam sealers (polyurethane-based) emit negligible VOCs once dry and are not a concern for outdoor storage. Black Diamond does not specify seam-seal chemistry, but industry-standard products are low-emission at ambient temperatures.
Flame retardants
Ripstop nylon used in tents is not typically treated with chemical flame retardants; nylon itself has moderate inherent flame resistance. No flame retardant hazard identified for this product class or Black Diamond's manufacturing.
Source, EPA ↗The full breakdown
The brand's record and disclosure
Black Diamond (owned by Clarus Corp) does not publicly disclose water-repellent coating chemistry or PFAS content for this tent model. The brand has no published fluorochemical policy or transition to PFAS-free alternatives in its tent line as of available records. No recalls or safety incidents have been reported for this specific model related to chemical hazards. Absence of disclosure is standard across most tent manufacturers; few voluntarily specify water-repellent coating formulation.
How it compares in its category
Most mainstream backpacking tents (Big Agnes, MSR, Nemo, REI Co-op) use identical ripstop nylon with standard fluorocarbon water-repellent coating, making chemical profiles broadly similar across the price and performance tier. A small number of brands (e.g.Some brands (Zpacks, some Hyperlite models) offer water-repellent coating alternatives with lower concern for PFAS, but they command premium pricing and trade some durability for reduced chemical load. The Mega Light is competitively positioned as a mid-range ultralight shelter with no distinguishing safety advantage or deficit versus peers.
If you buy it
Use the tent outdoors only; never heat-seal seams or apply heat near the water-repellent coating, as this may degrade the treatment unevenly. Rinse the exterior with plain water after saltwater exposure to minimize corrosion of metal poles and potential for microcracking in the fabric. The water-repellent coating will degrade over 5-10 years of regular use; reapplication kits are available, but they also contain fluorochemicals. Store dry and away from direct sunlight when not in use to slow UV degradation of nylon fibers.
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
- Black Diamond has made none
Formulations change between production runs, so check the current label. How we grade.
More camping tents & tarps 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.