Martin · Guitar Strings
Martin MTCN160 Titanium Core Acoustic Guitar Strings
Lower concern; acoustic guitar strings have no functional need for PFAS coatings.
Martin MTCN160 strings are metal-wound guitar strings with no disclosed water-repellent, nonstick, or stain-resistant treatment. PFAS use in acoustic strings is not a known industry practice.
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Steel core with titanium-coated wrap and bronze/phosphor bronze wound
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
Martin MTCN160 strings use a steel core wrapped with bronze or phosphor bronze winding, then coated with titanium. The titanium coating is a mechanical surface treatment meant to increase durability and sustain, not a chemical additive. Unlike cookware or textiles, acoustic guitar strings are not ingested, worn on skin, or heated to release fumes during normal use, so material toxicity pathways are limited.
The brand's record and disclosure
Martin Guitars is a legacy US manufacturer with no major product safety recalls specific to string lines or toxic material contamination on public record. The company does not publish detailed chemical or third-party test certifications for individual string products, which is typical for the instrument industry but limits independent verification. No controversies or documented health complaints tied to this string model or titanium-coated variants are established in consumer safety databases.
How it compares in its category
Titanium-coated acoustic strings sit at the premium end of the category; most budget alternatives use uncoated bronze or phosphor bronze wrap. Coated strings are marketed for longer lifespan and tone stability. From a safety standpoint, the titanium coating does not introduce chemical hazards that uncoated strings avoid, so the choice is aesthetic and durability-driven, not safety-driven.
If you buy it
Acoustic strings require no special handling for safety purposes. Replace them when tone dulls, intonation drifts, or visible corrosion or kinking appears; typical lifespan is 1-3 months with regular playing. Store in a dry environment to slow oxidation and corrosion. No heat exposure, chemical contact, or skin sensitization issues are documented for this product type.
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 ions from string corrosion or wear
Bronze and steel strings naturally oxidize and shed microscopic metal particles over time. Ingestion risk is near-zero for guitar strings (not a food contact surface), and skin contact is brief and localized to fingertips; no cases of toxicity from acoustic string wear are established.
Phosphor bronze toxicity
Phosphor bronze contains trace phosphorus as a hardening agent. When used as a wound string, phosphorus remains bound in the alloy matrix and does not leach into skin or saliva under normal playing conditions; no health warnings exist for this material in instrument strings.
Titanium coating degradation and inhalation
Titanium is inert and not volatile at room temperature. The coating may chip or wear with use, but loose particles remain on the string surface and are not aerosolized or inhaled during playing. No respiratory or systemic toxicity from titanium-coated string wear is documented.
Nickel sensitivity from steel core
Steel typically contains small amounts of nickel as an alloy component. Players with severe nickel contact dermatitis may experience mild finger irritation with prolonged exposure, though guitar strings are not a common trigger. If known nickel allergy exists, uncoated nickel-free strings are available as alternatives.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 82% 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.