Rex Review, Is Rex Non-Toxic?
Across 8 graded products, Rex averages Excellent (85/100). On disclosure, the brand says nothing publicly about PFAS. 8 of its products grade Good or better. Grades are model-based estimates, not lab results.
PFAS Authority is a scoring system, not a laboratory. We do not test products ourselves. Grades are model-based, built from published ingredients, materials, certifications, brand disclosures and third-party lab results where they exist. See the rubric.
Does Rex have PFAS, by category
Worth buying from Rex Good or better, best-graded first
Rex
Grip Wax Purple 45g
Paraffin wax blend
Inhalation of wax dust and volatile organics
Scraping and brushing paraffin wax can generate fine dust. While paraffin itself is…
Thermal degradation at high ambient temperatures
Paraffin wax begins to soften visibly above 40 degrees Celsius. If stored in hot vehicles…
Ski wax. Paraffin-based formulas pose lower PFAS concern than fluorinated alternatives.
⚠Brand says nothing about PFAS
Rex
Power Grip Wax
Wax-based grip compound
Volatile organic compound (VOC) off-gassing
Wax formulations may contain trace solvents or petroleum distillates used in…
Skin sensitization or irritation from resins or additives
Synthetic resins or tackifiers in grip wax can cause contact dermatitis in sensitive…
Microplastic shedding during use
Synthetic polymer components may fragment and shed onto snow/terrain during wear. This is…
Ingestion toxicity if swallowed (incidental child exposure)
Paraffin wax itself is low-toxicity if ingested in small amounts (used in food-grade…
Wax-based ski or board grip.
⚠Brand says nothing about PFAS
Rex
TK-2251 Klister
hydrocarbon wax-based ski klister
Volatile organic compounds (VOCs) during application
Hydrocarbon-wax klisters release solvents when warmed for application; prolonged exposure…
Ingestion risk (accidental or child)
Klister products are not food-grade and contain solvents and additives not intended for…
Lower concern. Hydrocarbon wax formulations typically avoid PFAS.
⚠Brand says nothing about PFAS
Rex
Glider
Unknown, likely composite or plastic base
Plasticizer leaching (if PVC or soft plastic base)
Unknown plastic composition means phthalates or BPA cannot be ruled out. Soft plastics…
Volatile organic compound (VOC) off-gassing
Composite or foam-based gliders commonly release formaldehyde and other VOCs during…
Flame retardants
If the glider contains polyurethane foam, brominated or phosphorus-based flame retardants…
Coating or finish degradation over time
Unknown surface finishes may chip, peel, or degrade, potentially releasing paint or…
Insufficient product information to assess PFAS risk.
⚠Brand says nothing about PFAS
Rex
Purple Liquid Grip Wax
wax-based ski/snowboard grip product
Hydrocarbon solvent vapors (volatile organic compounds)
Ski waxes release low levels of aliphatic hydrocarbons when applied, particularly in warm…
PFAS
Conventional ski waxes historically contained fluorocarbons (PFOS/PFOA) for performance…
Likely lower concern, but brand discloses nothing about PFAS.
⚠Brand says nothing about PFAS
Rex
Grip Wax 30GB
paraffin wax blend
Hydrocarbon vapor inhalation during application
Paraffin wax releases light aliphatic hydrocarbons when heated for ironing or brush…
Fine-particle inhalation from brush dust
Brushing dried wax may generate fine dust particles. Risk is minimal in typical outdoor…
Ski wax, lower PFAS concern.
⚠Brand says nothing about PFAS
Rex
Grip Wax 45g Red
Hydrocarbon wax blend
Inhalation of wax fumes during application
Heating any paraffin or hydrocarbon wax can release volatile organic compounds (VOCs) and…
Skin irritation or allergic contact dermatitis from colorant dyes
Red dyes or pigments in the wax matrix could rarely trigger contact sensitivity in…
Off-gassing or odor concerns in storage
Hydrocarbon waxes are generally stable but may release faint hydrocarbon odor if stored…
Lower PFAS concern. Hydrocarbon wax without known fluorochemical treatment.
⚠Brand says nothing about PFAS
Rex
Klister
Hydrocarbon wax blend
Volatile organic compound (VOC) emissions
Hydrocarbon waxes may off-gas minor volatile compounds during application or in warm…
Skin irritation or contact dermatitis
Hydrocarbon waxes can cause mild irritation with prolonged direct skin contact…
Likely lower PFAS concern than fluorinated ski waxes.
⚠Brand says nothing about PFAS
Rex and PFAS, common questions
- Does Rex have PFAS?
- We graded 8 Rex products, averaging Excellent (85/100). 8 grade Good or better. Grades are model-based estimates built from published materials, ingredients and disclosures, not lab tests.
- Is Rex non-toxic?
- Rex Grip Wax Purple 45g is the highest-graded Rex product we have scored, at 85/100. It depends on the product line rather than the brand, so check the grade of the exact item you are buying.
- Which Rex products are lower concern for PFAS?
- The highest-graded Rex products we have scored are Rex Grip Wax Purple 45g, Rex Power Grip Wax, Rex TK-2251 Klister. That is our model-based estimate from materials and public disclosure, not a lab test.
Every grade uses the same public rubric. How grades work →