Guitar Strings, ranked by PFAS safety
101 products graded A to F, safest first. 85 earn a C or better and are worth buying.
Buyer’s guide
What to look for in guitar strings, and which brands grade best and worst
Bad · Better · Best guitar strings
The quickest read: what to skip and the top-graded picks worth buying instead.
Elixir
Elixir 80/20 Acoustic Guitar Strings
Elixir's coating formula is undisclosed, possible PFAS use in water/corrosion resistance, but no public evidence confirms it.
Dean Markley
Dean Markley Blackhawk Acoustic Guitar Strings
Lower PFAS concern, steel and bronze guitar strings are commodity materials with no known treatment vectors for PFAS.
Worth buying graded C or better, safest first
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
Dean Markley
2562 Blue Steel Electric Guitar Strings Medium
Nickel-plated steel core; hexagonal wrap (likely nickel-plated steel or stainless)
Lower PFAS concern, metal strings without known Teflon-family coating coatings.
✓Bare metal or glass, no coating at all
Savarez
Cristal Corum High Tension Strings
Nylon monofilament with stainless steel core
Lower concern, classical guitar strings with no known PFAS applications, but no explicit brand disclosure.
✓Bare metal or glass, no coating at all
Rotosound
R12-60 Electric Guitar Strings
Nickel-wound steel strings; stainless steel construction
Lower PFAS concern; no treatment chemistry typical of problem products.
✓Bare metal or glass, no coating at all
Rotosound
RS200 Top Tape Monel Flatwound Electric Guitar String
Monel alloy (nickel-copper) with stainless steel wrap
Lower PFAS concern, metal guitar strings are not a typical PFAS vector, but no brand disclosure.
✓Bare metal or glass, no coating at all
Thomastik-Infeld
GB114 George Benson Flatwound Jazz Guitar Strings
Nickel-plated steel core with flatwound stainless steel wrap
Lower PFAS concern; traditional guitar string materials lack typical Teflon-family coating applications.
✓Bare metal or glass, no coating at all
Thomastik-Infeld
Thomastik Power-BRights Electric Guitar Strings
Stainless steel core wire with nickel-plated windings
Lower PFAS concern; standard electric guitar strings with no known Teflon-family coating coatings.
✓Bare metal or glass, no coating at all
D'Addario
Electric Guitar Strings Nickel
Nickel-plated steel core with nickel-brass wound exterior
Lower PFAS concern; traditional guitar strings use established metallic coatings, not Teflon-family coating.
⚠Brand says nothing about PFAS
D'Addario
Acoustic Bronze Guitar Strings
Phosphor bronze wound over steel hex core
Lower PFAS concern; standard string material composition poses minimal exposure risk.
⚠Brand says nothing about PFAS
D'Addario
Acoustic Guitar Strings XS 80/20 Bronze Coated
80/20 Bronze (copper-tin alloy) with phosphor-bronze coating
Lower concern, acoustic guitar strings composed of well-established metals with no known PFAS application.
⚠Brand says nothing about PFAS
Ernie Ball
Everlast Acoustic Guitar Strings
Steel wound on steel core, nylon/polymer windings
Lower PFAS concern; standard acoustic strings with no known fluorochemical treatments.
⚠Brand says nothing about PFAS
Ernie Ball
Power Slinky Electric Guitar Strings
nickel-plated steel wound core with bronze/phosphor bronze wrap
Lower PFAS concern; standard metal guitar strings with no known fluorochemical coatings.
⚠Brand says nothing about PFAS
Ernie Ball
Super Slinky Electric Guitar Strings
Steel core with nickel-plated wound strings
Lower concern, traditional metal guitar strings with no known PFAS-risk profiles.
⚠Brand says nothing about PFAS
Ernie Ball
Beefy Slinky Electric Guitar Strings
Nickel-plated steel wound around hexagonal steel core
Lower PFAS concern; traditional guitar string materials not associated with fluorochemical treatments.
⚠Brand says nothing about PFAS
Ernie Ball
3125 Extra Slinky Electric Guitar Strings
Nickel-plated steel wire with nylon-coated wrap
Lower-concern product, guitar strings lack typical PFAS end-uses and no public evidence of fluorinated coatings.
⚠Brand says nothing about PFAS
Fender
UltraCore 1250 Electric Guitar Strings
Nickel-plated steel core wound with nickel-plated brass
Lower PFAS concern, traditional metal guitar strings with no known fluorochemical coatings.
⚠Brand says nothing about PFAS
Fender
Super Nickel-Plated Steel Electric Guitar Strings
Nickel-plated steel core with phosphor bronze wound wrap
Lower PFAS concern, traditional guitar string materials have no typical PFAS application.
⚠Brand says nothing about PFAS
Fender
Super Bullets Electric Guitar Strings
Nickel-plated steel core with bronze or steel windings
Lower concern, guitar strings are metallic with no typical PFAS application pathways.
⚠Brand says nothing about PFAS
Fender
Classic Core Electric Guitar Strings
Nickel-plated steel core with bronze/phosphor bronze wound wrap
Lower PFAS concern, guitar strings use standard metal construction without typical PFAS-risk treatments.
⚠Brand says nothing about PFAS
Fender
Electric XII Strings
Wood body, metal hardware, steel/nickel strings, electronics
Lower PFAS concern, traditional guitar materials rarely require PFAS coatings.
⚠Brand says nothing about PFAS
Martin
Authentic 80/20 Bronze Acoustic Guitar Strings
80/20 bronze (copper/tin alloy) wound on steel core
Lower-concern product, bronze acoustic strings have no typical PFAS application or documented use.
⚠Brand says nothing about PFAS
Martin
MA130 Acoustic Guitar Strings
Phosphor bronze wound over hexagonal steel core
Lower PFAS concern, acoustic guitar strings are inherently simple metal/bronze products with no known Teflon-family coating use.
⚠Brand says nothing about PFAS
Martin
MSPLUS4100 SP+ Coated Phosphor Bronze Light Acoustic Guitar Strings
Phosphor bronze wire with SP+ coating (Martin proprietary)
Lower concern; acoustic guitar strings with no known PFAS use, but Martin does not disclose coating details.
⚠Brand says nothing about PFAS
Martin
Acoustic 80/20 Bronze Guitar Strings
80/20 bronze wire (copper/zinc alloy)
Lower-concern product; acoustic guitar strings have no typical PFAS application.
⚠Brand says nothing about PFAS
Martin
Authentic Acoustic LifeSpan 2.0 Phosphor Bronze Guitar Strings
Phosphor bronze wire with wrap, hexagonal steel core
Lower PFAS concern; acoustic guitar strings are not a typical PFAS exposure route.
⚠Brand says nothing about PFAS
Martin
MA150 Acoustic Guitar Strings
Phosphor bronze wound steel, nylon core
Lower PFAS concern; traditional acoustic guitar string materials lack typical fluorochemical use cases.
⚠Brand says nothing about PFAS
Martin
MTCN160 Titanium Core Acoustic Guitar Strings
Steel core with titanium-coated wrap and bronze/phosphor bronze wound
Lower concern; acoustic guitar strings have no functional need for PFAS coatings.
⚠Brand says nothing about PFAS
Acoustic360
D'Addario Acoustic Bronze Guitar Strings
Phosphor bronze wire (hex-wound core, steel plated)
Lower PFAS concern, metal guitar strings are unlikely vehicles for intentional PFAS use.
⚠Brand says nothing about PFAS
Acoustic360
D'Addario XT Acoustic Phosphor Bronze Guitar Strings
Phosphor bronze wire, steel core
Lower PFAS concern, traditional metal strings with no known Teflon-family coating or water-repellent coatings.
⚠Brand says nothing about PFAS
Acoustic360
Cleartone Acoustic Guitar Strings
Steel or nickel-silver wound strings, bronze or phosphor bronze wrap
Lower PFAS concern, acoustic guitar strings are traditional metal products with no known Teflon-family coating coatings or water repellency treatments.
⚠Brand says nothing about PFAS
Acoustic360
DR Dragon Skin+ Acoustic Guitar Strings
Steel wound strings with brass/bronze wrap
Lower PFAS concern; guitar strings are not a typical PFAS application, but no brand transparency.
⚠Brand says nothing about PFAS
Acoustic360
D'Addario XS Phosphor Bronze Acoustic Guitar Strings
Phosphor bronze wire (copper-tin alloy with phosphorus), no known PFAS-containing coatings
Lower concern, acoustic guitar strings made from traditional metal alloys have no typical PFAS application.
⚠Brand says nothing about PFAS
Phosphor Bronze
Ernie Ball Everlast Acoustic Guitar Strings
Phosphor bronze wound on steel core
Lower PFAS concern, traditional acoustic guitar strings with no known Teflon-family coating treatments.
⚠Brand says nothing about PFAS
Phosphor Bronze
D'Addario Guitar Strings
Phosphor bronze wire (copper-tin alloy base)
Lower concern, traditional metal strings have no established PFAS risk.
⚠Brand says nothing about PFAS
Phosphor Bronze
Gibson Coated Phosphor Bronze Acoustic Guitar Strings
Phosphor bronze wire with unspecified coating
Lower PFAS concern; acoustic strings are not a typical PFAS-risk category, but coating details remain opaque.
⚠Brand says nothing about PFAS
Phosphor Bronze
Pyramid Cleopatra Coated Phosphor Bronze CLEO-XII Acoustic Strings Medium 12-54
Phosphor bronze strings (copper-tin-phosphorus alloy)
Lower PFAS concern; traditional metal acoustic strings are unlikely to contain fluorinated compounds.
⚠Brand says nothing about PFAS
Phosphor Bronze
D'Addario XS Phosphor Bronze Acoustic Guitar Strings
Phosphor bronze wire (copper-tin alloy with phosphorus hardener)
Lower-concern choice; metal guitar strings have minimal PFAS exposure pathways.
⚠Brand says nothing about PFAS
Phosphor Bronze
DR Dragon Skin+ Acoustic Guitar Strings
Phosphor bronze wound steel strings
Lower PFAS concern; acoustic strings are not a typical PFAS vector, but brand transparency is absent.
⚠Brand says nothing about PFAS
Phosphor Bronze
S.I.T. Strings CP1047 - CRT Coated Phosphor Bronze Extra Light (10-47)
Phosphor bronze strings with CRT coating
Lower PFAS concern; traditional metal strings with no known Teflon-family coating coatings or waterproofing treatments typical of PFAS use.
⚠Brand says nothing about PFAS
Phosphor Bronze
Dean Markley Blackhawk Acoustic Guitar Strings
Phosphor bronze wound over steel core; no reported coatings or treatments
Lower PFAS concern, acoustic guitar strings are bare metal wound with no water-repellent, nonstick, or stain-resistant treatments typical of PFAS risk.
⚠Brand says nothing about PFAS
Dean Markley
Blackhawk Acoustic Guitar Strings
Bronze-wound steel strings, phosphor bronze or nickel alloy wraps
Lower PFAS concern, steel and bronze guitar strings are commodity materials with no known treatment vectors for PFAS.
⚠Brand says nothing about PFAS
Dean Markley
Signature Series Electric Guitar Strings
Nickel-plated steel strings
Lower PFAS concern; guitar strings are not a known PFAS application, but no brand transparency.
⚠Brand says nothing about PFAS
Dean Markley
NickelSteel Electric Guitar Strings
Nickel-plated steel wire
Lower PFAS concern; standard metal guitar strings rarely treated with fluorochemicals.
⚠Brand says nothing about PFAS
Dean Markley
2008 Vintage Bronze Acoustic Guitar Strings
Phosphor bronze wound on steel core
Lower PFAS concern, bronze/steel strings have no known fluorine-dependent coatings.
⚠Brand says nothing about PFAS
Dunlop
Heavy Core Electric Guitar Strings
steel/nickel-plated wound core strings
Lower PFAS concern; traditional guitar string materials carry minimal legacy risk.
⚠Brand says nothing about PFAS
Dunlop
Björn Gelotte Artist-Selected Custom Guitar Strings
Steel/nickel-plated steel strings; wound wire cores
Lower PFAS concern; steel guitar strings lack typical PFAS-prone coatings.
⚠Brand says nothing about PFAS
Dunlop
DAP1254 Light Phosphor Bronze Acoustic Guitar Strings
Phosphor bronze wire wound on steel core
Lower concern, acoustic guitar strings use traditional metal alloys with no known PFAS applications.
⚠Brand says nothing about PFAS
Dunlop
Nickel Plated Steel Electric Guitar Strings 6-Pack
Nickel-plated steel strings
Lower PFAS concern, traditional guitar strings with no known Teflon-family coating or water-repellent coatings.
⚠Brand says nothing about PFAS
Dunlop
Zakk Wylde Electric Guitar Strings
Nickel-plated steel strings (typical Dunlop construction)
Lower PFAS concern; no coating treatment typical of guitar strings.
⚠Brand says nothing about PFAS
Dunlop
Nickel Wound Electric Guitar Strings
Nickel-plated steel wound core strings
Lower concern, metal guitar strings have no known PFAS function, but Dunlop provides no public PFAS statement.
⚠Brand says nothing about PFAS
Dunlop
DAB1048 Acoustic Guitar Strings
Hexagonal-core steel/nickel-plated wound strings
Lower PFAS concern; standard acoustic guitar strings with no known fluorochemical coatings.
⚠Brand says nothing about PFAS
Savarez
Cristal Corum Mixed Tension Classical Guitar Strings
Nylon-wound steel core with carbon treble strings
Lower PFAS concern, classical guitar strings use standard materials without typical PFAS application triggers.
⚠Brand says nothing about PFAS
Savarez
Argentine Acoustic Jazz High Tension Ball End Guitar Strings
Nickel-silver wound nylon core, bronze ball end
Lower PFAS concern; conventional guitar string materials lack drivers for PFAS use.
⚠Brand says nothing about PFAS
Savarez
Traditional High Tension Wound Treble
Nylon wound treble strings (classical guitar)
Lower concern, traditional nylon guitar strings carry minimal PFAS risk.
⚠Brand says nothing about PFAS
Savarez
Corum Alliance Classical Guitar Strings
Nylon-wrapped steel core with bronze wound strings
Lower concern, classical guitar strings lack typical PFAS-use cases; no red flags detected.
⚠Brand says nothing about PFAS
Savarez
Tomatito Flamenco Guitar Strings
Bronze-wound nylon core strings (classical flamenco guitar strings)
Lower PFAS concern; no treatment triggers identified in this traditional string product.
⚠Brand says nothing about PFAS
Savarez
Alliance HT Classic 540R Guitar String Set
Nylon/nylon-silver core (wound strings)
Lower-concern product; guitar strings have no functional reason for PFAS coatings.
⚠Brand says nothing about PFAS
Savarez
520B Traditional Low Tension Classical Guitar Strings
Nylon trebles, bronze/brass wound basses on nylon core
Lower PFAS concern, traditional string materials rarely use fluorinated coatings.
⚠Brand says nothing about PFAS
La Bella
700L Silver-Plated Acoustic Guitar Strings
Phosphor bronze wound, silver-plated steel core
Lower PFAS concern; traditional guitar string materials rarely require fluorinated coatings.
⚠Brand says nothing about PFAS
La Bella
HRS-R Electric Guitar Strings
Steel wound strings (nickel/steel core, nickel-plated wrap)
Lower PFAS concern, traditional metal guitar strings have no typical coating routes requiring PFAS.
⚠Brand says nothing about PFAS
La Bella
Vapor Shield Acoustic Guitar Strings
Nickel-plated steel wound strings with bronze/brass core
Lower PFAS concern, traditional string materials, no water-repellent coating or coating treatments typical of PFAS use.
⚠Brand says nothing about PFAS
La Bella
Vapor Shield Electric Guitar Strings
Steel core with nickel-silver wound wrap (standard guitar string composition)
Lower-concern product; traditional metal string materials carry minimal PFAS risk.
⚠Brand says nothing about PFAS
La Bella
2001 Flamenco Guitar Strings
Steel/nylon wound strings, no applied water/grease-resistant coating
Lower PFAS concern, traditional wound strings with no known water-repellent coating or specialty coatings.
⚠Brand says nothing about PFAS
La Bella
700T Tenor Guitar Strings
Nickel-plated steel wound strings
Lower concern, traditional guitar strings with no known PFAS use or treatment.
⚠Brand says nothing about PFAS
La Bella
40PT Golden Alloy Acoustic Guitar Strings
Phosphor bronze wound steel core (acoustic guitar strings)
Lower PFAS concern; traditional metal string materials carry minimal risk.
⚠Brand says nothing about PFAS
Rotosound
Nexus Acoustic Guitar Strings
Nickel-plated steel strings (wound core)
Lower concern, traditional acoustic strings with no known PFAS use, but no brand transparency.
⚠Brand says nothing about PFAS
Rotosound
Roto Yellows Electric Guitar Strings
Nickel-plated hex-core steel wire strings
Lower PFAS concern; metal strings lack typical treatment triggers.
⚠Brand says nothing about PFAS
Rotosound
Nexus Bass Guitar Strings
Steel/nickel-silver wound strings, no special coating disclosed
Lower-concern product; steel strings have minimal PFAS risk, but lack transparency is a minor flag.
⚠Brand says nothing about PFAS
Rotosound
NC Single Guitar String
Nickel-wound steel wire (NC = nickel-chromium)
Lower PFAS concern; traditional metal wound string with no known water-repellent or coating treatments.
⚠Brand says nothing about PFAS
Rotosound
NXA12 Aco Str 12-54
Nickel-wound steel strings (acoustic guitar)
Lower concern, acoustic guitar strings pose minimal PFAS risk.
⚠Brand says nothing about PFAS
Rotosound
Jumbo King Acoustic Guitar Strings
Nickel-plated steel wound strings (bronze/steel core)
Lower PFAS concern; acoustic guitar strings are not a typical PFAS application.
⚠Brand says nothing about PFAS
Thomastik-Infeld
Thomastik AC113 Plectrum Bronze Acoustic Guitar Strings
Bronze-wound steel strings (phosphor bronze, steel core)
Lower concern, acoustic guitar strings lack typical PFAS application pathways; no red flags identified.
⚠Brand says nothing about PFAS
Thomastik-Infeld
Plectrum Bronze Acoustic Guitar String
Bronze-wound acoustic guitar strings (phosphor bronze wrap on steel core)
Lower PFAS concern, bronze/steel strings are traditional materials with no known Teflon-family coating coatings.
⚠Brand says nothing about PFAS
Thomastik-Infeld
Thomastik classical guitar Strings
Nylon-wound steel core (classical guitar strings)
Lower PFAS concern; classical guitar strings are not a typical PFAS-risk product category.
⚠Brand says nothing about PFAS
Thomastik-Infeld
Bronze Flat Wound ac036
Bronze-plated steel wound guitar strings
Lower PFAS concern; traditional string construction unlikely to contain fluorochemicals.
⚠Brand says nothing about PFAS
Thomastik-Infeld
Thomastik Power Brights PB110
Steel strings (nickel-steel core, nickel-wound)
Lower PFAS concern, steel string instruments lack typical Teflon-family coating coatings.
⚠Brand says nothing about PFAS
Thomastik-Infeld
SL110 Blues Sliders Electric Guitar Strings
Steel roundwound electric guitar strings
Lower concern; traditional steel strings with no known PFAS applications in this category.
⚠Brand says nothing about PFAS
Everly
Ernie Ball Everlast Acoustic Guitar Strings
Phosphor bronze core with nickel-plated steel wound strings
Lower PFAS concern, traditional metal string materials don't typically contain PFAS, but no brand disclosure.
⚠Brand says nothing about PFAS
Everly
Sessions Phosphor Bronze Acoustic Guitar Strings
Phosphor bronze wound on steel core
Lower concern, acoustic guitar strings are unlikely PFAS vectors; no evidence of problematic coatings.
⚠Brand says nothing about PFAS
Everly
Ernie Ball EB2554 Everlast Bronze
Phosphor bronze acoustic guitar strings
Lower PFAS concern, traditional acoustic string material with no known treatment history.
⚠Brand says nothing about PFAS
Everly
Rockers Electric Guitar Strings
Steel wire (nickel/steel alloy)
Lower PFAS concern, standard steel guitar strings rarely use fluorinated coatings.
⚠Brand says nothing about PFAS
Everly
Ernie Ball 2550 Everlast Coated Phosphor Bronze Acoustic Guitar Strings 10-50
Phosphor bronze with unspecified coating (likely resin or lacquer-based)
Lower concern; acoustic guitar strings have minimal PFAS exposure risk and no known coating Teflon-family coating.
⚠Brand says nothing about PFAS
Everly
D'Addario Acoustic Guitar Strings
Steel wound on steel core with wrap
Lower concern. Traditional steel strings have no known PFAS risk profile.
⚠Brand says nothing about PFAS
Graded and flagged D and F, we’d swap these
Elixir
Phosphor Acoustic Guitar Strings
Phosphor bronze wound steel strings with proprietary Elixir coating
Skip until brand discloses coating chemistry, Elixir's proprietary finish lacks transparency on PFAS risk.
⚠Undisclosed proprietary coating
GHS
Coated Boomers Electric Guitar Strings
Hexagonal wire core with unspecified coating
Skip until GHS discloses coating chemistry, guitar strings are a low-concern use case, but opacity warrants caution.
⚠Undisclosed proprietary coating
GHS
CBGBL Coated Boomers Electric Guitar Strings
Steel/nickel-plated core; coating composition unspecified
Skip or contact GHS for coating transparency; PFAS risk unknown for this niche product.
⚠Undisclosed proprietary coating
Ernie Ball
Coated Electric Slinky Guitar Strings
Nickel-plated steel core with proprietary polymer coating
Skip unless Ernie Ball discloses coating composition; coated strings are a PFAS uncertainty.
⚠Undisclosed proprietary coating
Ernie Ball
Everlast Light Coated 80/20 Bronze Acoustic Guitar Strings
80/20 bronze wound strings with proprietary light coating
Lower PFAS concern; standard bronze acoustic strings without known Teflon-family coating coatings, but coating composition not publicly disclosed.
⚠Undisclosed proprietary coating
Ernie Ball
3123 Coated Super Slinky Electric Guitar Strings
Nickel-plated steel core with proprietary polymer coating
Insufficient disclosure on coating chemistry, PFAS risk unclear but not confirmed for guitar strings.
⚠Undisclosed proprietary coating
Fender
80/20 Dura-Tone Coated Acoustic Guitar Strings
80/20 bronze wound strings with proprietary "Dura-Tone" coating
Skip until Fender discloses coating composition or provides third-party testing.
⚠Undisclosed proprietary coating
Fender
Dura-Tone Coated Phosphor Bronze Acoustic Guitar Strings
Phosphor bronze wire with proprietary Dura-Tone coating (unspecified polymer)
Skip until Fender discloses what 'Dura-Tone' coating actually is, no public safety data available.
⚠Undisclosed proprietary coating
Acoustic360
Elixir Nanoweb Acoustic Guitar Strings
Steel/nickel-silver wound strings with proprietary Nanoweb coating
Insufficient public data on coating composition, skip if PFAS avoidance is a priority.
⚠Undisclosed proprietary coating
Acoustic360
Elixir Nanoweb Phosphor Bronze Acoustic Guitar Strings
Phosphor bronze strings with proprietary Nanoweb coating (unspecified polymer)
Lower-risk for PFAS; phosphor bronze core is inherently safe, but proprietary coating composition remains undisclosed.
⚠Undisclosed proprietary coating
Dean Markley
Blackhawk Coated Electric Guitar Strings
Steel strings with proprietary coated finish (composition unspecified)
Skip until Dean Markley discloses the coating chemistry or provides third-party testing.
⚠Undisclosed proprietary coating
Dean Markley
Blackhawk Coated Electric Guitar Strings Medium 11-49
Steel strings with proprietary "Blackhawk" coating (composition unspecified)
Coating composition is proprietary and undisclosed; PFAS risk unclear but unconfirmed.
⚠Undisclosed proprietary coating
Everly
Ernie Ball Everlast Light Coated 80/20 Bronze Acoustic Guitar Strings
80/20 bronze wound strings with proprietary "Everlast" coating
Skip until coating composition is disclosed, Everlast coating ingredients remain opaque.
⚠Undisclosed proprietary coating
Everly
Ernie Ball Everlast Coated Acoustic Guitar Strings
Proprietary coated steel/nickel-plated wound strings (coating unspecified)
Skip until coating disclosed, PFAS use in string coatings is undisclosed across the industry.
⚠Undisclosed proprietary coating
Elixir
Nanoweb Acoustic Guitar Strings
Polymer-coated steel strings with proprietary nanoweb coating
Skip until coating composition is disclosed, Elixir's proprietary nanoweb raises PFAS questions that remain unanswered.
⚠Waterproof or stain-proof treatment
Elixir
80/20 Acoustic Guitar Strings
Steel wound with bronze or nickel-silver wrap; proprietary polymer coating
Elixir's coating formula is undisclosed, possible PFAS use in water/corrosion resistance, but no public evidence confirms it.
⚠Waterproof or stain-proof treatment
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