Dean Markley · Guitar Strings
Dean Markley 2562 Blue Steel Electric Guitar Strings Medium
Lower PFAS concern, metal strings without known Teflon-family coating coatings.
Dean Markley Blue Steel strings are made from nickel-plated steel with no disclosed surface treatments known to require PFAS (nonstick, waterproofing, or grease resistance). The brand makes no PFAS claims, but guitar strings are not a typical PFAS-risk product category. No public lab testing or recalls affect this product.
Shop Dean Markley on Amazon →Material
Nickel-plated steel core; hexagonal wrap (likely nickel-plated steel or stainless)
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Uncoated safe material
Bare, uncoated material (cast iron, stainless, carbon steel, or glass) with no surface treatment to contain 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
Dean Markley 2562 Blue Steel strings use a nickel-plated steel core with a hexagonal wrap, likely also nickel-plated steel or stainless. This construction is standard for medium-gauge electric guitar strings and poses no known chemical leaching risk because the strings do not contact food, skin for prolonged periods, or body cavities. Nickel plating is durable and resistant to corrosion, making it a long-established safe choice for musical instruments.
The brand's record and disclosure
Dean Markley (owned by D'Addario) does not publish detailed material safety or PFAS disclosure statements for guitar strings, which is typical for the instrument accessory category. The parent company D'Addario has a general sustainability presence but offers no product-specific certifications for string safety. No recalls, contamination incidents, or safety controversies are on record for this product line.
How it compares in its category
Nickel-plated steel strings are the industry standard for electric guitars and represent the baseline safety profile for the category. Alternatives include pure nickel (softer, warmer tone, similar safety), stainless steel (harder, brighter, equally safe), and coated strings (wound with bronze or other alloys, still safe). Dean Markley's Blue Steel formulation is competitive and carries no known disadvantage in material safety versus major competitors like Ernie Ball, Fender, or GHS.
If you buy it
Store strings in a cool, dry place to prevent premature oxidation and loss of tone. Replace when they feel rough, sound dull, or show visible corrosion or discoloration. Wash hands after playing to remove skin oils and sweat, which accelerate tarnishing but pose no health risk. No special handling precautions are needed; nickel contact during normal playing is not a sensitization or exposure concern for the vast majority of players.
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.”
Nickel contact dermatitis
Nickel-plated strings may trigger contact dermatitis in nickel-sensitive individuals through prolonged skin contact during play. This is rare but well-documented in the medical literature for guitar players; sensitivity typically requires prior exposure and genetic predisposition. Non-nickel alternatives (pure nickel, stainless) are available if sensitivity is confirmed.
Heavy metal leaching (food/water context)
Guitar strings are not in contact with food or drinking water, so leaching of nickel or steel into consumables is not a relevant hazard. No exposure pathway exists in normal use.
Fume or off-gassing risk
Metal strings do not off-gas volatile organic compounds or fumes under normal playing conditions or ambient temperatures. No thermal processing or burning is involved in typical use.
Microparticle or coating degradation
Nickel plating can wear or flake over extended use and repeated string bending, generating fine metal particles. These are typically ingested in negligible amounts via hand-to-mouth contact and cleared by the body, but sensitivity or heavy exposure is theoretically a concern for players with extreme frequency or open hand wounds.
Manufacturing or supply chain transparency
Dean Markley does not publish third-party manufacturing audits or material testing reports for guitar strings. Standard manufacturing oversight and quality control are assumed based on brand reputation and category norms, but no independent verification is publicly available.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 85% 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.
More guitar strings 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.