Videos
Flex Seal is a rubberized sealant spray coating that sprays out as a liquid, seeps into cracks and holes, and dries to a watertight, flexible coating. It stops leaks fast while remaining completely flexible, making it ideal for sealing and protecting surfaces throughout your home, garage, RV, or outdoor structures. Whether you're repairing a leaky roof, sealing foundation cracks, weatherizing windows, or protecting metal and concrete from corrosion, Flex Seal provides a durable, long-lasting solution that won't sag, drip, crack, or peel.
This portable aerosol spray can makes application effortless. The thick liquid formula fills gaps and adheres to wet or dry surfaces, then cures to a flexible rubberized coating that remains unaffected by extreme heat, cold, and weather. Unlike paint, Flex Seal covers fast with just one pass and can be painted over once fully cured, giving you flexibility in color and finish options.
Features and Benefits
- Fast Leak Sealing: Sprays as a thick liquid that seeps into cracks and holes, then dries to a watertight, flexible coating that stops leaks quickly.
- Weather and Temperature Resistant: Remains flexible and protective in extreme heat and cold; won't crack, peel, sag, or drip in any season.
- Versatile Application: Works on wood, metal, tile, concrete, fabric, glass, plastic, aluminum, and many other surfaces; ideal for roofs, gutters, PVC pipes, skylights, windowsills, and foundation waterproofing.
- Easy Spray Application: Portable aerosol can requires no special tools or equipment; covers large areas efficiently with minimal passes.
- Paintable and Customizable: Once fully cured, it can be painted any color, making it suitable for arts and crafts projects and custom finishes.
- Durable Protection: Provides lasting corrosion protection and deadens vibrations while remaining completely flexible.
Specifications
- Brand: Flex Seal
- Model: FSBRNR20
- Size: 14 oz
- Color: Brown
- Type: Rubberized sealant coating spray (aerosol)
- Compatible Surfaces: Wood, metal, tile, concrete, masonry, fabric, glass, plastic, aluminum, porcelain, drywall, rubber, cement, and select vinyls
Application Tips
- Spray a larger area than the leak and feather edges for best results.
- Apply multiple coats rather than one thick coat for optimal coverage.
- Use at can temperature above 60°F.
- Allow Flex Seal to fully cure before testing or exposing the sealed area to water.