Prevents Mildew Growth
This innovative, state-of-the-art barrier provides invisible long lasting protection on virtually any surface above the waterline.
It contains no bleach, and is the only well-known brand of its kind on the market.
Mildew Block forms an invisible barrier that mildew cannot grow on.
Works on sails, seat cushions, carpeting, canvas, showers, boat covers, vinyl windows and more!
Helps prevent mildew from reforming
Developed for harsh marine environments
Ready to use half-liter spray bottle
For best results, pre-clean with 3M Marine Mildew Stain Remover (#9067) before using this product