How To Seal Foundation Cracks & Holes
Our video below will maximize your success when preparing for a flood using the Flex Seal Flood Protection line. Foundation cracks & holes can vary in shape and design, so it is important to seal any area where water may enter.
IMPORTANT
Always follow evacuation orders. Heed all directions from local government and emergency management officials. Watch our introductory video before starting.
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Materials
Tools Used:
• Caulk Gun
• Flex Gap Filler Tool
• Paint Brush
• Putty Knife
• Protective Gloves
• Eyewear
• Caulk Gun
• Flex Gap Filler Tool
• Paint Brush
• Putty Knife
• Protective Gloves
• Eyewear
IMPORTANT
Flood Paste in a Cartridge is the base coat for your first layer of protection. Use a gloved finger, Flex Gap Filler tool, or similar tool to push into all seams and openings to help create a watertight seal. Always be cautious of any sharp objects that may cause injury.
Apply Paste
Using a putty knife, remove an even layer of Flood Paste from the tray.
Push a firm even coat of our Flood Paste directly into the crack or opening, as well as the surrounding area of the crack or hole.
Inspect for gaps or voids that may have been missed, making sure both the crack and surrounding wall are well-covered.
Push a firm even coat of our Flood Paste directly into the crack or opening, as well as the surrounding area of the crack or hole.
Inspect for gaps or voids that may have been missed, making sure both the crack and surrounding wall are well-covered.
Additional Layers
If you applied Flood Protection Paste in thin, even layers, you should expect it to be dry to the touch in two to six hours. Next, we recommend applying additional coats of our Flood Protection Paste as needed.
Follow the same application process as the first layer, but each individual coat that you apply should be wider and overlap the previous layer of Flood Protection Paste.
Once the cracks and holes have been sealed and are completely dry, and you already have multiple layers of Flood Protection Paste, we recommend using our Flood Protection Liquid as an additional layer of protection.
When applying our Flood Protection Liquid, use your brush and apply it directly on top of our Flood Protection Paste, making sure you overlap your final coat — this will help cover any pinholes or openings that you can't see.
Remember you want to make sure all the flood protection products are fully cured before a flood arrives.
For additional help, click on one of our how-to options below, or call us at:
833-4-A-FLOOD (833-423-5663).
Follow the same application process as the first layer, but each individual coat that you apply should be wider and overlap the previous layer of Flood Protection Paste.
Once the cracks and holes have been sealed and are completely dry, and you already have multiple layers of Flood Protection Paste, we recommend using our Flood Protection Liquid as an additional layer of protection.
When applying our Flood Protection Liquid, use your brush and apply it directly on top of our Flood Protection Paste, making sure you overlap your final coat — this will help cover any pinholes or openings that you can't see.
Remember you want to make sure all the flood protection products are fully cured before a flood arrives.
For additional help, click on one of our how-to options below, or call us at:
833-4-A-FLOOD (833-423-5663).
Get Flood Protection Now
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We’re proud to say that when used in combination, and as directed, our Flood Protection
Products have been independently verified by UL Solutions to hold back 3ft of water for 14 days on gaps up to ½ inch.
Tested in laboratory settings.
Contact Us
Flood Protection Products Support
Our dedicated Flood Protection Product support is here when you need it. Whether you have questions about our products, or need help ordering, our experts are ready to help.
You can also watch our informative series of step-by-step videos by visiting flexsealproducts.com/flood
You can also watch our informative series of step-by-step videos by visiting flexsealproducts.com/flood
Phone:
833-4-A-FLOOD
(833-423-5663)
(833-423-5663)
Or use the form below to send us an email.
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