Flex Seal MAX gives you the power of flex seal with 20% more coverage. Flex Seal MAX is a rubberized sealant spray coating that sprays out as a liquid, seeps into cracks and holes, and dries to a watertight, flexible, rubber coating. Flex Seal MAX will not sag or drip in summer heat, nor crack or peel in winter cold. Use on wet or dry surfaces. Ideal for uses around the home, boat, and RV. It's the easy way to coat, seal, and stop leaks fast.
- Easy-to-use, portable, aerosol spray with 20% more coverage
- Fix leaky roofs, gutters, and downspouts
- For roof drip edges and flashings
- Leaky or broken hose and PVC pipe repairs
- Seal or repair windowsills
- For A/C drip pans, portable A/C units, duct work, and chimneys
- On boats and other personal watercrafts
- Flat, metal, rubberized and granulated roof repairs and leaks
Product Videos
Custom Field
Model FSMAXBLK24
Prop 65 Warning Black aerosol label: Warning: This product can expose you to chemicals including Ethyl Benzene and Carbon Black, which are known to the State of California to cause cancer, and Toluene, which is known to the State of California to cause birth defects
