Mizuno · Golf Equipment & Balls
Mizuno RB Max Golf Balls
Lower concern. Golf balls have no typical PFAS applications.
Mizuno RB Max golf balls use standard synthetic elastomer and cover materials without known PFAS drivers. No brand disclosure on PFAS; typical golf ball construction poses lower concern than apparel or cookware.
We flunk more products than we pass. This one earned its grade. How we grade
Material
Synthetic rubber/elastomer core, surlyn or urethane cover
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 Max balls feature a synthetic rubber or elastomer core wrapped in either Surlyn (ionomer) or urethane cover material. Both elastomer cores and these cover polymers are chemically stable during normal golf play and do not leach into skin or body on contact. The multi-layer construction (core, mantle, cover) is designed for durability and performance, not consumable use, so ingestion or prolonged skin exposure is not a realistic pathway.
The brand's record and disclosure
Mizuno is a Japanese sporting goods manufacturer with no published safety controversies or recalls specific to golf ball chemistry. The company does not publicly disclose material sourcing or third-party testing for golf balls, nor do they maintain prominent environmental certifications for this product line. Industry-wide, golf ball makers rarely publish detailed chemical composition or toxicology data, which reflects industry practice rather than a red flag for this brand.
How it compares in its category
Golf balls across major brands (Titleist, Callaway, TaylorMade, Bridgestone) use functionally identical elastomer cores and Surlyn or urethane covers; Mizuno sits in the mainstream middle. No major competitor has published safety testing or claimed material superiority on toxicological grounds. The product category itself has no established safety scandals or widespread recalls tied to material composition.
If you buy it
Golf balls require no maintenance or special care related to chemical safety. Store in a cool, dry place to slow UV degradation of the cover, though this is aesthetic and performance-related, not a safety issue. Do not heat, microwave, or incinerate golf balls. Replace when cover becomes visibly cut, cracked, or waterlogged, as performance fails before any chemical leaching would occur.
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.”
Elastomer/polymer leaching (core, mantle)
No published evidence that Surlyn or urethane covers or synthetic elastomer cores leach chemicals during normal golf play or skin contact. These materials are considered chemically stable in standard use conditions.
Heavy metals in cover or core dyes/pigments
No recalls or testing reports documenting lead, cadmium, or other heavy metals in Mizuno RB Max golf balls. Golf ball paint and cover pigments are not subject to the same regulatory scrutiny as food contact or cosmetics, but no specific hazard has been identified in this product.
Volatile organic compounds (VOCs) off-gassing
New golf balls may release minor VOCs from manufacturing residue or adhesives used to layer the core and cover. This is minimal and brief compared to foam or textile products. Airing new balls in a well-ventilated space before use is a routine precaution.
Microplastics shedding from cover wear
Golf ball covers do degrade and shed microplastics over time, particularly Surlyn and urethane, especially when used on abrasive rough or sand. This is a documented environmental concern when balls are lost in water or soil, but poses no direct personal health risk during handling or play.
Antimony in polyester or synthetic fibers
Antimony is a concern in polyester textiles but is not typically used as a catalyst in golf ball elastomer or Surlyn manufacturing. No evidence of antimony contamination in this product category.
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.