Waterproofing Wax for Leather vs Water and Stain Repellent: which is safer?

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 Shoe MGK.
• We flag Inhalation exposure from aerosol spray application, Skin and eye irritation from contact, Coating degradation and fiber shedding over time and Absence of hazard and disposal information on the Shoe MGK and not on the Nikwax.
• The Nikwax is wax-based waterproofing where the Shoe MGK is Unknown water/stain repellent coating on shoe fabric, 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 Shoe MGK grade, at 35% confidence against 78%, because it discloses less.