Do-It-Yourself Basement Care & Repairs
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Deep-Penetrating Concrete Sealers Do-It-Yourself Basement Care & Repairs |
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Epoxy Crack Filler for Concrete or Masonry
This unique, state-of-the-art crack filler features the strength and tenacious bond of epoxy but is flexible, which allows for the natural movement of concrete. The strength of this epoxy filler and its bond to concrete exceed the strength of the concrete itself. The filled joint can never be pulled apart because the concrete would crack first. What sets it apart from ordinary epoxies is its flexibility (elongation). Concrete continuously moves in response to changes in temperature, settling, pressure from the soil or underground water, vibrations from traffic. If you fix a foundation crack with stiff epoxy and the structural stresses continue, a new crack will likely develop next to the old one. But this epoxy has a lot of “give” and will not lead to new cracks. The Old Ways of Fixing Leaking CracksIf you want to repair a leaking crack in concrete block wall or a floor-to-wall joint, the common methods provide only a temporary, superficial fix.
You could hire a contractor to use epoxy injection for cracks in poured concrete. But rigid epoxy is not suitable for expansion control joints in floors or for floor-to-wall joints of floating slabs because they are supposed to allow for movement to avoid structural damage. Do-It-Yourself Epoxy Crack Filler KitState-of-the-art flexible epoxy for permanent repair of cracks, joints, holes, spalling, and defects in indoor or outdoor concrete and masonry. Permanently stops water leaks, resists chemicals and heavy traffic. Stronger than concrete but allows for its natural movement. Two-part construction repair epoxy. No polymer additives, 100% thermosetting hydrophobic epoxy. Virtually indestructible under high water pressure, extreme temperatures, and heavy traffic. The crack repair kit is suitable for contractors or for do-it-yourself application by homeowners.
You will need a plastic container (a small pail) for mixing and a low-speed electric drill for the mixer. If needed, some dry silica or play sand to be mixed in. A small trowel or a small plastic watering can if the epoxy will be poured into joints or routed crack. Adding sand makes the mixture stiffer and suitable for application on walls with a trowel. The more sand (up to 5:1 or 6:1), the less sag after the application and more volume for filling the voids. However, adding sand decreases the flexibility of the cured epoxy (from about 30% for pure epoxy to almost none at 4:1 ratio). Appearance: Adding sand results in a gray color, close to the color of concrete. Or sprinkle sand on the pure epoxy after application before it hardens. The filler is paintable. In case of pure epoxy, it is best to first roughen up the surface with a grinder. When is Crack Injection Better?Crack injection with expandable polyurethane foam ensures that the entire depth of the crack is filled and keeps water out of the crack completely.
Filling Large Openings in Concrete FloorsExamples: Filling a sump pit, a bathroom rough-in, concreting over a newly installed interior French drain. You can use the concrete mix sold in stores but it is cheap and has little cement. This results in a very porous concrete, which allows water seepage and bonds poorly to existing concrete. Buy also a bag of Portland cement and add a couple of scoops to the concrete mix. Painting the old concrete with a bonderizer (latex-based primer) further helps in bonding with the new concrete. Repair Projects for the Crack FillerUse to repair cracks, joints, or pit marks in indoor or outdoor concrete and masonry. The best repair method for:
For information on the appropriate mixture and application for your project, visit Epoxy Crack Filler Application Price and Shipping
CoverageBased on an expansion control joint or a routed out crack 1/4" wide by 1/2" deep and using pure epoxy (without added sand), the smaller kit (2 quarts of epoxy) will fill approximately 120 linear feet of cracks. The larger kit (2 gallons of epoxy) provides four times more volume – 480 ft. At a 4:1 sand to epoxy ratio, you will need approximately 20 lbs. of dry silica or play sand and the smaller kit will fill about 600 ft. of cracks ¼” wide and ½” deep. Any questions? Please contact us by e-mail, MADE IN USA |
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