PFAS in Guitar Strings, Which Brands Grade Best and Worst

Based on available materials and data, D'Addario's core string lines and most uncoated Ernie Ball strings grade as "Excellent" in our model, while several popular coated strings from Elixir, GHS, and one Ernie Ball coated line grade lower because coating chemistry is where PFAS-related compounds tend to show up. The clearest lower-concern picks in our database right now are D'Addario D'Addario Electric Guitar Strings Nickel and D'Addario D'Addario Acoustic Bronze Guitar Strings, each carrying an 85/100 safety score in our model, which is our model-based estimate from materials and public disclosure, not a lab test.

The pattern across this guide is consistent, uncoated and traditionally wound strings, where the materials are just steel, nickel, bronze, and phosphor bronze wraps, tend to score well because there's less engineered coating chemistry involved. Coated strings, which brands market for longer tone life and corrosion resistance, introduce polymer coatings that in some cases correlate with PFAS-related manufacturing inputs. That association is not causation, and we have not seen third-party lab verification for most of these products. Still, the pattern is strong enough that if PFAS exposure is a priority for you, string type and coating matter more than brand name alone. For a broader shopping reference beyond guitar strings, see our product finder and the fishing line roundup, since fishing line and coated instrument strings share some similar polymer coating concerns.

Summary comparison

Product	PFAS grade (model estimate)	Verdict
D'Addario Electric Guitar Strings Nickel	Excellent, 85/100	Lower concern, uncoated nickel wrap
D'Addario Acoustic Bronze Guitar Strings	Excellent, 85/100	Lower concern, uncoated bronze wrap
Ernie Ball Everlast Acoustic Guitar Strings	Excellent, 85/100	Lower concern despite "Everlast" coating name
Ernie Ball Power Slinky Electric Guitar Strings	Excellent, 85/100	Lower concern, uncoated
Ernie Ball Super Slinky Electric Guitar Strings	Excellent, 85/100	Lower concern, uncoated
D'Addario Acoustic XS 80/20 Bronze Coated	Excellent, 85/100	Lower concern, coated but scores well
Ernie Ball Beefy Slinky Electric Guitar Strings	Excellent, 85/100	Lower concern, uncoated
Ernie Ball 3123 Coated Super Slinky Electric	Good, 50/100	Mid-tier, coating chemistry drags score down
Elixir Phosphor Acoustic Guitar Strings	Good, 50/100	Mid-tier, coated phosphor bronze
GHS Coated Boomers Electric Guitar Strings	Good, 50/100	Mid-tier, coated
GHS CBGBL Coated Boomers Electric Guitar Strings	Good, 50/100	Mid-tier, coated
Ernie Ball Coated Electric Slinky Guitar Strings	Good, 50/100	Mid-tier, coated
Elixir 80/20 Acoustic Guitar Strings	Poor, 40/100	Weakest grade in this set, avoid if minimizing PFAS exposure is a priority
Elixir Nanoweb Acoustic Guitar Strings	Poor, 40/100	Weakest grade in this set, avoid if minimizing PFAS exposure is a priority

Why guitar strings even show up in a PFAS conversation

Guitar strings seem like an unlikely entry on a site that usually covers cookware, cosmetics, and clothing, but coated strings are a real-world example of fluoropolymer-adjacent chemistry applied to a consumer product most people handle with bare hands for hours at a time. Coated strings use thin polymer films to resist finger oil, sweat, and corrosion, which is the same functional goal that drives PFAS use in waterproof boots and stain-resistant carpets. The chemistry isn't necessarily identical, but the category logic, durable water- and oil-repellency, is the same, and that's exactly the profile that often brings PFAS-related compounds into a product's manufacturing process.

To be clear about what our grades mean, a score is a model-based estimate built from reviewed materials, ingredient disclosures, and public manufacturer information. It is not a laboratory test result, and we have not independently verified these specific strings in a lab for fluorinated compounds. When a brand says a product is coating-free or doesn't use fluoropolymers, that is a brand-stated claim unless we explicitly note third-party verification, which we do not have for any product in this list.

Excellent grade, the strongest performers

D'Addario Electric Guitar Strings Nickel and Acoustic Bronze Guitar Strings

D'Addario's Nickel Electric Guitar Strings and Acoustic Bronze Guitar Strings both land at 85/100 in our model. Materials are straightforward, nickel-plated steel wrap wire over a steel core for the electric set, and 80/20 bronze wrap wire over steel core for the acoustic set, with no added polymer coating. D'Addario markets these as its standard, long-running core lines rather than as specialty low-chemical products, so there's no explicit brand claim about PFAS avoidance to evaluate, brand-stated or otherwise. The high score in our model comes from the simplicity of the materials list, not from a marketing promise.

Pros, widely available, affordable, uncoated construction keeps the ingredient list simple, long manufacturing track record. Cons, uncoated strings corrode faster and need more frequent changes than coated alternatives, no specific PFAS-free claim is made by the brand to confirm the scoring aligns with their stated intent.

Ernie Ball's uncoated Slinky and Everlast lines

Power Slinky Super Slinky, and Beefy Slinky electric strings all score 85/100. These are Ernie Ball's classic nickel-wound, uncoated electric sets, built on tin-plated steel cores with nickel-plated steel wrap wire. Interestingly Ernie Ball Everlast Acoustic Guitar Strings, which the brand markets with a coating designed for corrosion resistance and tone retention, also scores 85/100 in our model, which stands out against the lower scores for other coated products in this guide. That suggests Everlast's specific coating formulation, based on available materials and data, differs meaningfully from the coatings used on the brand's own 3123 Coated Super Slinky line or competitors like Elixir.

Pros, strong, consistent scores across both coated and uncoated Ernie Ball products in this set, broad retail availability, long-standing player favorite for tone and feel. Cons, coated Everlast strings cost more than uncoated Slinky sets, and the brand's marketing around "Everlast" durability does not include an explicit PFAS statement, so the favorable score should be read as a materials-based estimate rather than a verified chemical-free claim.

D'Addario Acoustic XS 80/20 Bronze Coated

This is the one coated string in the "Excellent" tier, scoring 85/100 despite being a coated product. D'Addario's XS 80/20 Bronze Coated strings use the brand's proprietary coating technology over a standard 80/20 bronze wrap. D'Addario markets XS coated strings around corrosion resistance, tone preservation, and break resistance, not specifically around chemical content, but the materials profile reviewed in our model places it well above other coated competitors in this list. This is a useful data point for anyone who wants coated-string benefits, longer life, less finger squeak, without automatically landing in the lower grade tiers that most coated strings fall into.

Pros, coated string with a notably stronger model score than most coated competitors, tone-retention benefits of a coating without the lowest grades, backed by a major, well-documented manufacturer. Cons, still a coated product, so the long-term chemical profile depends on coating formulation details that are not independently lab-confirmed in our data, and D'Addario has not published a specific PFAS-free assertion for this line that we can cite as a brand claim.

Good grade, the mid-tier coated strings

A cluster of coated strings from three different brands lands at exactly 50/100 in our model, Ernie Ball's 3123 Coated Super Slinky Ernie Ball's Coated Electric Slinky Elixir's Phosphor Acoustic strings GHS Coated Boomers, and GHS CBGBL Coated Boomers. All five share a basic structural trait, a polymer or resin coating applied over a standard wrap wire, marketed primarily for longer string life and reduced finger noise rather than for any chemical-safety reason.

GHS describes its Boomers coating as a tone-preserving, corrosion-resistant layer. Elixir describes its Phosphor coating (part of its Nanoweb or Polyweb family depending on the specific product) as engineered for playing feel and extended life. Ernie Ball's coated lines carry similar marketing language. None of these brand descriptions make an explicit PFAS-content or PFAS-free claim that we can verify, so the "Good" grade in our model reflects a middle ground, these are not the strongest performers in this dataset, but they're also not at the bottom.

Pros across this tier, genuinely longer-lasting strings, which means less frequent replacement and potentially less packaging waste over time, strong tone-retention reputation among players, available from major retailers. Cons across this tier, middling model score compared to uncoated alternatives, coating formulations are proprietary and not broken down publicly in enough detail for full transparency, no third-party lab verification available in our data to confirm or rule out PFAS-related inputs.

Poor grade, where caution matters most

Elixir 80/20 Acoustic Guitar Strings and Elixir Nanoweb Acoustic Guitar Strings both score 40/100, the lowest grades in this entire dataset. Both are coated acoustic string sets, built around Elixir's branded coating technology, which the company markets heavily around its ability to resist dirt, oil, and corrosion far longer than competing coatings. That exact durability claim, however, is also what tends to push a product's score down in our model, the coatings that resist oil and moisture most aggressively are often the ones most associated with PFAS-adjacent chemistry in manufacturing.

Elixir has not published, in sources we've reviewed, a specific ingredient-level disclosure confirming or denying fluoropolymer content for these two lines. That absence of disclosure, combined with the functional profile of the coating, is reflected in the lower model score. This is a materials-based estimate, not a lab result, and we want to be explicit that we have not tested these products ourselves.

Pros, Elixir's coated strings are famous among players for genuinely extended string life, often lasting multiple times longer than uncoated strings before tone degrades, which some players view as a value and waste-reduction tradeoff. Cons, lowest model scores in our comparison set, no available third-party verification of coating chemistry, premium price point relative to uncoated strings from other brands.

What to avoid

• Avoid assuming "coated" automatically means "lower grade", D'Addario's XS 80/20 Bronze Coated shows that coating formulation varies enough between brands that a coated string can still score in the Excellent tier. Judge by the specific product, not the category.
• Avoid assuming an uncoated string is automatically risk-free, our model reflects available materials and disclosure, not a full lab panel, so "Excellent" should be read as lower concern, not as a guarantee of zero PFAS-related inputs anywhere in the supply chain.
• Avoid taking any brand's durability or corrosion-resistance marketing as a chemical-safety statement. Terms like "long-lasting," "corrosion-resistant," and proprietary coating names are performance claims, not ingredient disclosures.
• If minimizing PFAS exposure specifically is your priority, treat the Poor-grade Elixir lines 80/20 Acoustic and Nanoweb Acoustic, as the ones to deprioritize first in this dataset, based on available materials and data.
• Don't extrapolate guitar string findings to other instrument accessories or unrelated categories without checking product-specific data. If you're also shopping for other PFAS-relevant categories, check dedicated roundups like non-stick knife sets or waterproof phone cases rather than assuming one category's pattern applies elsewhere.

Our pick

Based on available materials and data, the clearest lower-concern picks for players who want to minimize PFAS-related exposure are the uncoated D'Addario and Ernie Ball lines, D'Addario Electric Guitar Strings Nickel D'Addario Acoustic Bronze Guitar Strings, and the uncoated Ernie Ball Slinky sets, all at 85/100 in our model. If you specifically want a coated string for its tone-retention and longevity benefits without dropping into the lowest grade tier D'Addario's XS 80/20 Bronze Coated and Ernie Ball's Everlast Acoustic strings stand out as the two coated products in this guide that still scored Excellent.

None of this constitutes a safety guarantee, and no product discussed here has been independently lab-verified for PFAS content in the sources we reviewed. These are model-based estimates built from publicly available materials and manufacturer disclosures, meant to help you compare relative risk, not to certify any single string set as free of fluorinated compounds. For more category comparisons built on the same methodology, visit our product finder or browse related roundups like fishing line, which shares similar coating chemistry questions.

Frequently asked questions

Do guitar strings actually contain PFAS?

Some coated strings use polymer coatings that, based on available materials and data, may be associated with PFAS-related compounds in manufacturing, though this varies by brand and specific product. We have not seen independent lab testing confirming fluorinated content in any specific string set covered here, so this should be read as an association based on materials and coating category, not a confirmed causal link to any health outcome.

Are uncoated strings always the lower-concern choice?

In this dataset, uncoated strings from D'Addario and Ernie Ball scored highest, but one coated product, D'Addario's XS 80/20 Bronze Coated, also reached the Excellent tier, so coating alone doesn't determine the grade. Judge each product individually using available materials and disclosure rather than assuming all coated strings score the same.

Should I stop buying Elixir strings entirely?

Our model currently shows Elixir's 80/20 Acoustic and Nanoweb Acoustic strings at the Poor tier, while Elixir's Phosphor Acoustic strings score Good at 50/100, so the brand's lineup is not uniform. If minimizing PFAS-related exposure matters to you, treat each Elixir product individually and compare it against alternatives like the D'Addario XS 80/20 Bronze Coated set before deciding.