Waterproofing Wax for Leather vs Surface Protectant Aerosol Can PK12: 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
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleRespiratory irritation or fume inhalation during application
ReportedPFAS in water repellency treatment
Zep
Surface Protectant Aerosol Can PK12
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossiblePFAS in fluorocarbon-based fabric coatings
ReportedInhalation hazard from aerosolized propellants and coating mist
LikelyVolatile organic compound (VOC) off-gassing
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 Zep.
- We flag PFAS in fluorocarbon-based fabric coatings, Inhalation hazard from aerosolized propellants and coating mist, Volatile organic compound (VOC) off-gassing and Skin and eye contact irritation on the Zep and not on the Nikwax.
- The Nikwax is wax-based waterproofing where the Zep is aerosol formulation, unspecified coating/protectant, which is most of the difference in these two grades.
- We are less certain about the Zep grade, at 35% 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 →
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