Mizuno · Golf Equipment & Balls
Mizuno RB Tour Golf Balls
Lower concern, but manufacturer transparency on PFAS absent.
Golf ball covers typically use Surlyn or similar synthetic resins not inherently reliant on PFAS. Mizuno provides no public PFAS disclosure for this product line. No independent testing data available.
We flunk more products than we pass. This one earned its grade. How we grade
Material
Surlyn and other thermoplastic cover resins
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
Category baseline
other is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
The full breakdown
What it's made of and why it matters
Mizuno RB Tour balls use Surlyn (a thermoplastic polyester ionomer) as the cover material, which is chemically inert under normal playing conditions. The core is typically rubber or synthetic elastomer blends. Surlyn does not leach or off-gas meaningfully during outdoor use at ambient temperatures, and golf balls are not food contact items, heating vessels, or worn against skin for extended periods. The material was chosen for durability and performance, not safety risk mitigation.
The brand's record and disclosure
Mizuno is a Japanese sporting goods manufacturer with no documented safety recalls or chemical disclosure controversies specific to golf balls. The company has not published detailed material safety or PFAS sourcing statements for ball products, consistent with industry silence on these topics. No third-party testing or certification (e.g., eco-labels) for golf balls is standard across the category, making comparative transparency difficult.
How it compares in its category
Golf ball safety profiles are largely indistinguishable across brands because cover material (Surlyn, Urethane) and core construction vary only in performance properties, not hazard profile. Mizuno RB Tour sits in the mid-premium segment; cheaper balls and premium alternatives share the same material chemistry exposure. The category itself carries negligible chemical hazard relative to cookware, textiles, or food storage products because contact is outdoor, brief, and non-ingestion.
If you buy it
Store golf balls at room temperature and away from direct sunlight to avoid potential micro-degradation of the Surlyn cover over years (not a health hazard, but cosmetic). Do not heat or microwave balls. Wash hands after extended handling if you have sensitive skin or dermatitis, though allergic reaction to Surlyn is rare. Replace balls when the cover cracks or delaminates, which signals end-of-life, not a safety event.
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.”
Surlyn cover degradation and microplastic shedding
Repeated impact and UV exposure over years may cause microscopic surface breakdown. Shed particles are too large to inhale and unlikely to enter food chains during typical play, but accumulation in turf/waterways is an environmental concern, not acute consumer hazard.
Heavy metals in core materials or pigments
No lead, cadmium, or other regulated heavy metals are documented in golf ball cores or covers. Surlyn and elastomer formulations used in ball manufacture do not typically incorporate these elements.
Formaldehyde or volatile organic compounds (VOC) off-gassing
Surlyn and elastomer cores do not rely on formaldehyde-releasing resins or high-VOC adhesives. Golf balls are not enclosed spaces and do not release detectable odors that would indicate off-gassing concern.
Allergic contact dermatitis from cover materials
Surlyn is a non-sensitizing plastic. No documented cases of golf ball-induced dermatitis from Mizuno or competitors exist in public records. Risk is negligible for the general population.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 72% 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.
More golf equipment & balls 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.