GHS CBGBL Coated Boomers Electric Guitar Strings
Avoid or contact GHS for coating transparency; PFAS risk unknown for this product.
GHS CBGBL strings use proprietary coating with no publicly available disclosure of composition or PFAS content. Guitar strings aren't a major PFAS exposure vector, but transparency prevents confident assessment.
The safe swap
Ernie Ball
Ernie Ball Beefy Slinky Electric 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
Steel/nickel-plated core; coating composition unspecified
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.
Nickel contact dermatitis
Nickel-plated steel core is in direct skin contact during playing and restringing. Risk is elevated for individuals with known nickel allergy or sensitive skin; regulatory dermal contact limits do not apply to strings, and no barrier claims are made by GHS.
Coating degradation and leachate exposure
Proprietary polymer coating composition is undisclosed. Degradation over time (weeks to months) could release unknown additives into saliva and sweat. Without material transparency, risk of encountering plasticizers, UV stabilizers, or colorants remains unquantified.
Microabrasion and inhalation of coating particles
Worn or damaged coatings shed fine particles during playing, especially in aggressive playing styles. Inhalation of polymer dust is a minor occupational hazard for frequent players; composition unknown makes risk characterization incomplete.
What’s reassuring
Heavy metals
No recalls or reports of cadmium, lead, or chromium contamination in GHS coated strings exist in public records. Standard electroplating processes used in the industry are generally regulated; however, GHS provides no third-party certification or test results to confirm compliance.
Source: FDA ↗Allergenic impurities in polymer coating
No published documentation of formaldehyde releasers, azo dyes, or other common allergens in GHS Coated Boomers. Risk remains theoretical but unverified due to lack of ingredient disclosure.
The full breakdown
What it's made of and why it matters
GHS Coated Boomers use a steel core with nickel plating and an undisclosed polymer coating designed to extend string life and alter tone. The nickel plating is the primary concern for skin contact, as nickel is a known contact allergen affecting roughly 10-15% of the population. The coating composition is not publicly specified by GHS, which means potential leachates into sweat or saliva during extended playing remain uncharacterized.
The brand's record and disclosure
GHS Strings is an established manufacturer (founded 1964) with no major recalls or safety certifications listed for guitar strings. The company provides no public material safety data sheets, coating ingredient disclosures, or statements on heavy metals, allergens, or PFAS use in their coatings. This silence is typical in the guitar string industry but limits independent hazard assessment.
How it compares in its category
Coated strings universally rely on proprietary polymer layers; GHS Coated Boomers are mid-market offerings competing with Elixir, D'Addario, and Ernie Ball coated variants. Most competing brands equally withhold specific coating chemistry. Uncoated steel strings eliminate coating uncertainty but wear faster and lose tone definition, making the tradeoff between longevity and chemical transparency a category-wide design choice.
If you buy it
Wear gloves during installation and restringing to minimize nickel contact, especially if you have known nickel sensitivity or atopic dermatitis. Wash hands after playing to remove any coating particles or nickel residue. Replace strings every 1-3 months depending on playing frequency, as coating degradation increases risk of nickel exposure. Store in a dry environment to prevent moisture-induced corrosion that could compromise the protective nickel layer.
What we don’t know
- Basis
- Model estimate, 35% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- GHS 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.