Use and Care Manual

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HOW TO SEAL
CRAWL SPACES, BASEMENT
WINDOWS & PET DOORS
Sealing crawl spaces, basement windows, pet doors and other types of similar openings will utilize the
same application process. We will be using crawl spaces as an example.
PREPARING FOR SEALING
1. Make sure the areas being sealed are clean, dry, and free of grease, oil, dirt, and debris.
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2. Measure the opening you want to seal.
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3. Cut a piece a plywood large enough to overlap the entire opening.
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STEP #1 – APPLY FLOOD PROTECTION PASTE IN A SLEEVE
1. Cut one end of an individually wrapped sleeve and squeeze Flood Paste into the provided tray.
2. Using a putty knife, remove an even amount of Flood Paste from the tray.
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3. Apply a generous amount to the wall surrounding the entire opening.
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4. Firmly press the plywood to the wall, covering the entire opening. The Flood Paste should squeeze
out between the plywood and the wall. If not, you’ll need to apply more Flood Paste.
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5. Brace or hold the plywood in place for a few minutes until it stays in position.
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6. Once in place, use a gloved nger or Flex Gap Filler tool to push the Flood Paste into the seam
between the plywood and the wall and smooth out, making sure there are no gaps or openings.
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7. Let the rst coat of Flood Paste dry to the touch (2-6 hours*).
8. If needed, apply additional coats of Flood Paste to the seam. Each coat should be wider and overlap
the previous coat’s edges. Let each coat dry to the touch before applying the next coat.
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STEP #2 – APPLY FLOOD PROTECTION LIQUID
1. Brush a generous amount of Flood Liquid directly on top of the plywood, as well as the surrounding
areas, making sure to overlap where the Flood Paste meets the wall.
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2. Once the Flood Liquid is dry to the touch (3-6 hours*), apply as many additional coats as necessary
to help seal any small openings or pinholes that may have been missed, with each individual coat
being wider and overlapping the previous coat. Let each coat dry to the touch before applying
the next coat.
*Dry times may vary based on temperature, humidity, and thickness of applied layers.
PRODUCTS REQUIRED:
• Flex Paste
®
Flood Protection
(individually wrapped sleeves)
• Flex Seal
®
Liquid Flood Protection
TOOLS REQUIRED:
• Putty knife
• Paint brush
• Tape measure
• Saw
• Plywood
• Protective gloves & eyewear
Flood Paste in a Cartridge is the base coat for your rst layer of protection. Use a gloved nger, 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 object that may cause injury.
Go to: exsealproducts.com/ood for complete video instructions.