Waterproofing Wax for Leather vs StarBright Fabric Cleaner and Protectant Spray 945mL: which is safer?
Nikwax Waterproofing Wax for Leather is our pick: better on PFAS and on the overall hazard picture.
Our pick
Nikwax
Waterproofing Wax for Leather
PFAS grade
Good 65/100
Overall grade
Good 51/100
Verdict
Skip
Hazard flags
⚑ 2
Material
wax-based waterproofing
Confidence
78%
PossibleRespiratory irritation or fume inhalation during application
ReportedPFAS in water repellency treatment
Star brite
StarBright Fabric Cleaner and Protectant Spray 945mL
PFAS grade
Poor 40/100
Overall grade
Bad 4/100
Verdict
Skip
Hazard flags
⚑ 4
Material
Fluorochemical water and stain repellent finish (water-repellent coating treatment)
Confidence
45%
PossibleSolvent and propellant inhalation
PossibleSkin contact irritation
LikelyFlammability hazard
Where these two actually differ
- We flag Respiratory irritation or fume inhalation during application and PFAS in water repellency treatment on the Nikwax and not on the Star brite.
- We flag Solvent and propellant inhalation, Skin contact irritation, Flammability hazard and Aquatic toxicity from runoff on the Star brite and not on the Nikwax.
- The Nikwax is wax-based waterproofing where the Star brite is Fluorochemical water and stain repellent finish (DWR treatment), which is most of the difference in these two grades.
- The gap is 25 points, wide enough that this is not a close call, and the Nikwax is the one to buy.
- We are less certain about the Star brite grade, at 45% confidence against 78%, because it discloses less.
Both products run through the same public rubric: materials, coatings, brand disclosure, lab findings, and recalls, plus a beyond-PFAS hazard analysis. Grades are model-based estimates, not lab tests. How grades work →
More fabric stain guard sprays: see the full ranking