Waterproofing Wax for Leather vs Fabric Protector Spray: 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 ForceField.
• We flag Fluorochemical residue (potential PFAS in stain-resistant treatment), Volatile organic compounds (VOC) inhalation from aerosol spray, Skin contact sensitization from uncured coating residue and Off-gassing or leachate into food or saliva if applied to food-contact textiles on the ForceField and not on the Nikwax.
• The Nikwax is wax-based waterproofing where the ForceField is Proprietary spray coating, likely acrylate or silicone base, 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 ForceField grade, at 35% confidence against 78%, because it discloses less.