Elixir Phosphor Acoustic Guitar Strings
Avoid until brand discloses coating chemistry; Elixir's proprietary finish lacks transparency.
Elixir's Phosphor Acoustic strings use branded anti-corrosion coating, but the company doesn't disclose its chemical composition or PFAS status. Coating opacity makes PFAS risk assessment impossible without third-party testing.
The safe swap
Ernie Ball
Ernie Ball Everlast Acoustic Guitar Strings
85/100 safety
Same rubric that flunked this product. The swap earned Excellent.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Phosphor bronze wound steel strings with proprietary Elixir coating
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What’s concerning
Unknown / proprietary coating
Has a special coating but the exact formula is secret.
Category baseline
PFAS exposure happens more often with clothing products.
No PFAS disclosure
The company has not publicly discussed PFAS in this product.
Proprietary polymer coating composition unknown
Elixir does not publicly disclose the full chemical makeup of its string coating, leaving potential for undisclosed PFAS, plasticizers, or other additives. No independent testing results are publicly available.
Coating degradation and particulate ingestion
If the coating flakes with age or high humidity, fragments could enter the mouth during play. The toxicity of inhaled or ingested coating particles is unknown due to lack of disclosure.
What’s reassuring
Heavy metals
Phosphor bronze is a well-established, safe alloy used in marine and electrical applications. No lead, cadmium, or other regulated heavy metals are standard to phosphor bronze formulation.
Source: FDA ↗Steel core corrosion or oxidation
The steel core is sealed by the coating, making direct corrosion unlikely during normal use. No widespread reports of rust or oxide transfer to hands or mouth.
Allergen or skin sensitization from coating
No documented cases of dermatitis or allergic reactions linked to Elixir string coatings, but without ingredient transparency, risk cannot be fully ruled out for sensitized individuals.
The full breakdown
What it's made of and why it matters
Elixir Phosphor strings use a steel core wound with phosphor bronze, then wrapped in Elixir's proprietary polymer coating. The coating extends string life by reducing corrosion and finger wear, but its exact chemistry is not publicly disclosed. Phosphor bronze itself is a stable, non-toxic alloy; the risk lies entirely in the applied finish and whether it contains PFAS or other polymer additives.
The brand's record and disclosure
Elixir (owned by W.L. Gore) has not published detailed ingredient lists or polymer composition for its string coatings, despite being a market leader since the 1990s. The brand has not sought third-party certifications (e.g., OEKO-TEX, Bluesign) that would verify coating safety. No recalls or complaints specific to coating toxicity have been widely documented, but silence on chemistry is a transparency red flag.
How it compares in its category
Elixir is premium-priced and known for durability; uncoated phosphor bronze strings are cheaper and have fully transparent material composition. Some competing brands (e.g., Martin Darling, D'Addario) also use proprietary coatings but are slightly more forthcoming in marketing materials. Elixir's coating advantage is longevity, not safety; many players prefer uncoated strings to avoid unknown polymer exposure.
If you buy it
Store strings in a cool, dry place away from direct sunlight to preserve coating integrity. No special care is needed during play; normal hand hygiene and instrument maintenance suffice. If the coating visibly flakes or degrades, discontinue use and replace. Given coating opacity, consider requesting product safety data from Elixir or switching to uncoated alternatives if concerned about undisclosed additives.
What we don’t know
- Basis
- Model estimate, 45% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Elixir has made none
Formulations change between production runs, so check the current label. How we grade.
Safer alternatives in Guitar Strings
D'Addario
Electric Guitar Strings Nickel
Nickel-plated steel core with nickel-brass wound exterior
Nickel skin contact sensitivity
Limited concern
Coating degradation and core exposure
Moderate concern
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
Manufacturing residue or contaminants (oils, lubricants, solder flux)
Limited concern
Nickel exposure from steel core (for nickel-sensitive individuals)
Limited concern
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
Coating degradation and particulate release
Limited concern
Allergic contact dermatitis (copper sensitivity)
Limited concern
Lower concern; acoustic guitar strings composed of well-established metals with no known PFAS use.
⚠Brand says nothing about PFAS
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.