Liquid Rubber Sealant Coating I Flex Seal Spray

Free Shipping on Orders over $30 USD. Delivery times may be longer than usual. Click here to know more


Only: $19.99 CAD/ea*

Sugg. Retail Price

*Add to Cart for Price in US Dollars. All Transactions are Processed in US Dollars.

Product Description

FLEX SEAL® is actually liquid rubber in a can! It sprays out as a thick liquid, seeps into cracks and holes and dries to a watertight, flexible, rubberized coating. Flex Seal coats, seals, protects and Stops Leaks Fast!™ Available in 12 vibrant colors.

Flex Seal is perfect for:

  • Roof repair
  • Weatherizing your home
  • Gutters
  • Foundation and concrete waterproofing
  • Indoor and outdoor projects
  • Sealing cracks and holes
  • Pools and pool equipment
  • RV and motorhome repairs
  • Car and boat repairs
  • Bathroom fixes
  • Furniture repair
  • And so much more!

Flex Seal works on:

Wood, metal, tile, concrete, masonry, fabric, glass, plastic, aluminum, porcelain, dry wall, rubber, cement, some vinyl’s and more.

“It’s like a… HANDYMAN IN A CAN®!” – Phil Swift

FLEX SEAL® has many advantageous applications and uses, that when applied correctly, can last for many years. The most common uses for Flex Seal are listed below:

Common Flex Seal® Applications:

  • Ideal for arts and crafts, projects and hobbies
  • Repair RV’S, campers, and mobile homes
  • Repair skylights
  • Vent Pipes
  • For roof drip edges and flashings
  • Leaky or broken hose and PVC pipe repairs
  • To seal or repair windowsills
  • On boats and other personal watercrafts
  • For bird baths, ponds, and fountains
  • Flat, metal, rubberized and granulated roof repairs and leaks
  • Foundations, gravel stops, asphalt shingles, and overlapped seams
  • And, much more!




Read entire can. Wear face and eye protection, protective gloves, and clothing. Make sure the surface is clean, dry, and free of grease, oil, and dirt. Shake well. Spray 8” to 12” from surface, using an even, sweeping motion. Apply multiple, even coats until ALL cracks and holes have been filled.


* Allow 24 to 48 hours to dry before applying another coat.

* Let it dry completely. (It usually takes up to 24 to 48 hours to fully cure.)

* Use Flex Seal ONLY in a well-ventilated area. When using inside, prevent vapor build-up by opening doors and windows. Ensure fresh air entry during application and drying.

* Do not use near heat, sparks, pilot lights or other sources of ignition.


Spray a larger area than area where the leak is and feather the edges. For best results, apply multiple coats rather than one thick coat and use at can temperatures above 60ºF.
Make sure Flex Seal has filled ALL cracks and holes and is FULLY CURED before testing product. If light can pass through, apply additional coats.