Acoustic360 · Guitar Strings
D'Addario Acoustic Bronze Guitar Strings
Lower PFAS concern, metal guitar strings are unlikely vehicles for intentional PFAS use.
D'Addario Acoustic Bronze strings are primarily phosphor bronze and steel, materials not associated with PFAS applications like nonstick or water repellency. The brand makes no PFAS claims or disclosures, which is typical for guitar string manufacturers. No public lab data or recalls exist for this product category.
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Phosphor bronze wire (hex-wound core, steel plated)
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Category baseline
other is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
The full breakdown
What it's made of and why it matters
D'Addario Acoustic Bronze strings use phosphor bronze wire (typically 80% copper, 20% tin, with phosphorus as a hardener) wound around a hex-shaped steel core. This metal alloy combination is chemically stable under normal playing conditions and does not leach toxic elements into skin contact or the instrument. Unlike coated cookware or plastic food storage, the strings are not exposed to heat, moisture, or acidic food that would trigger leaching; they remain inert during typical acoustic guitar use.
The brand's record and disclosure
D'Addario (owned by the Bergio Group) maintains no public PFAS stance and discloses little about manufacturing chemistry for strings specifically. However, the company has not faced recalls or documented chemical safety controversies related to acoustic strings. No evidence exists that phosphor bronze wire manufacturing involves intentional PFAS addition, and the brand's general industry reputation is stable.
How it compares in its category
Phosphor bronze acoustic strings are the industry standard; alternatives (steel-core, nickel-wound, or specialty alloys) carry no documented safety advantage. All metal string types rely on similar alloy chemistry and pose equivalent low chemical hazard. Brand variation in this category reflects tone and durability preference, not safety differentiation.
If you buy it
Replace strings when they show visible corrosion, lose brightness, or snap; typical lifespan is 3-6 months for regular players. Store in a dry environment to slow oxidation; moisture accelerates tarnishing but does not introduce toxins. No special handling precautions are needed beyond normal guitar maintenance. Wash hands after playing if desired, though string metal itself poses no dermal hazard.
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.”
Metal alloy leaching (copper, tin, phosphorus)
Phosphor bronze is chemically stable under acoustic guitar conditions (room temperature, moderate humidity, no prolonged contact with food or strong solvents). No documented cases of toxic metal leaching from guitar strings during normal use.
Steel core corrosion and rust particles
Hex-wound steel cores can develop surface rust in very high humidity or sweat-exposed conditions, potentially releasing microscopic iron oxide particles. Risk is cosmetic and performance-related rather than acute toxicological, and affects string lifespan before any hazard threshold.
Coating or plating toxicity (if nickel present)
D'Addario acoustic bronze strings are typically nickel-free in the core; phosphor bronze alone does not introduce nickel sensitivity risk. Some specialty wound strings may include trace nickel plating, but this is not standard for this product line.
Manufacturing residue or lubricant contamination
Metal wire manufacturing may involve cutting fluids or drawing oils; these are typically removed during final processing. No recalls or contamination reports exist for D'Addario strings, and residual exposure is negligible during acoustic playing.
Dermal sensitization from alloy contact
Phosphor bronze is hypoallergenic for the vast majority of users; copper-tin alloys are well-tolerated on skin. Only individuals with documented nickel or copper hypersensitivity would face potential irritation, and this is not a broad-population concern.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 78% 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 Guitar Strings
Martin
Retro Acoustic Guitar Strings
Phosphor bronze, stainless steel, nylon wound
Lower concern, acoustic guitar strings typically use established metals and nylon without water-repellent coating or nonstick coatings.
✓Bare metal or glass, no coating at all
Acoustic360
Ernie Ball Everlast Acoustic Guitar Strings
Phosphor bronze/stainless steel wound on steel core
Lower PFAS concern, acoustic guitar strings use standard metal materials with no known fluorochemical treatments.
✓Bare metal or glass, no coating at all
Dean Markley
Electric Guitar Strings
Steel alloy strings (nickel-plated or stainless steel core)
Lower PFAS concern, steel strings lack typical PFAS applications, but no brand disclosure exists.
✓Bare metal or glass, no coating at all
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.