How to Permanently Repair Leaking Cracks in Concrete Floors

7/29/2019 How to Permanently Repair Leaking Cracks in Concrete Floors

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How To Permanently Repair Leaking Cracks InConcrete Floors

Using CrackWeld Concrete Floor Crack Repair Kit CrackWeld easily fills the full depth ofstress cracks in concrete floors and quickly cures as a rigid compound that becomes stronger than the

concrete itself! CrackWeld "welds"the concrete slab together and provides to contractors and

homeowners the state-of-the-art method for a proper repair of hairline or wide cracks (up to 1/2") inconcrete floors, as well as spalls or holes in concrete slabs.

Why Crack Repair Should Not Be Ignored Cracks are one of the most common problems in

indoor or outdoor concrete slabs, basement floors, driveways, garage floors, patios, pool decks andparking areas. If a crack is not properly repaired, the situation will get much worse, causing spallingand disintegration of the concrete.

RAINWATER Water gets

to the reinforcing steel, makes it rust andexpand, causing more cracking and

concrete pop-outs.

FREEZE-THAW Freez-

thaw cycle of trapped water widensconcrete cracks.

SEEPAGE The seepage of

water, water vapor, and radon gas through

cracks into homes and buildings.

TRAPPED MOISTURE

Moisture destroys flooring materials and may cause mold infestation.

EFFLORESCENCE Water leaches out the concrete and causes efflorescence.

TRAFFIC Vehicular traffic crumbles the edges of cracks.

EXPANSION/CONTRACTION The cracks will get wider and longer due to natural

movement of concrete.

FLOORING AND OVERLAYS Cracks propagate into rigid flooring tiles or concrete overlays.

Reduce Cracking by Sealing Concrete with RadonSeal

The CrackWeld Advantage for Repairing Cracks in Concrete Floors NO ROUTING NEEDED Eliminates the need of a cold chisel, or grinding disk.

SEAL HAIRLINE CRACKS Low viscosity, self levels. Needle nozzles included to seal even

hairline cracks.

CURES FAST Cures rigid in 15 minutes for overlays, flooring, paint, heavy traffic.

STRONGER THAN CONCRETE - Bonds concrete to prevent elongation and yawning of

cracks.

CrackWeld Contents
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CrackWeld is a two-component compound. When ejected out of the cartridge through a mixingnozzle, it fills the crack, reacts, and quickly cures. Similar to epoxy but only 1/10 as viscous routing

is not needed! It bonds with sand into an indestructible, impermeable mass inside cracks, spalls, orholes. Water, vapor, or gases cannot penetrate. It is also a structural repair it stops the crack fromfurther movement.

The repair is rigid. CrackWeld is not suitable for joints that require flexibility like expansion controljoints (saw cuts) or floor-to-wall joints of basement floating slabs. For sealing cold joint, expansion

joints, and floor-to-wall joints use ElastiPoxy Joint & Gap Filler Kit

Ordering & Shipping - CrackWeld PRO and DIY Repair Kits

How To Order: For secure and encrypted online processing of your order, click Order Now below. All

major credit cards accepted, or order with your PayPal account, or through Google Checkout. Orsimply phone your order in. If you prefer mailing a money order or check, use the Order Form.

CrackWeld DIY & PRO Concrete Floor Repair Kits

Size Price Shipping

CrackWeld DIY Kit(2-Pack) $79 $9

CrackWeld DIY Kit(4-Pack) $139 $10

CrackWeld PRO Kit $184 $12

CrackWeld PRO (Consumables

Kit)$119 $10

Shipping: CrackWeld is not sold in stores. CrackWeld is shipped directly from the factory to yourdoor (via UPS). Orders received by 3 pm ET are normally shipped the same day and UPS Grounddelivers within 2 to 5 working days in the lower 48 states. Based on shipping by courier to the lower

48 states. For shipping to other states (AK, HI) please inquire first by e-mail or telephone. Noexpedited shipping for CrackWeld. Unopened kits in salable condition are returnable. Please review

our Product Returns

Based on shipping by courier to the lower 48 states. For expedited shipping or shipping to other states

and Canada, please inquire first bye-mail or telephone.

The Wrong Way To Repair Cracks In Concrete Slabs

Self-Leveling Polyurethane Caulk Covering the crack with caulk is cheap and easy but short-term. Water wicking through the concrete or trapped water vapor will weaken its bond to concrete,

which may show up as efflorescence. The caulk will not last in traffic. After a couple of years, the caulkgets loose and can be easily peeled off.

Hydraulic Cement Hydraulic cement is a temporary fix only. Yes, it is waterproof but it does notbond well to concrete thats why you have to chisel out the crack as an inverted V-groove to hold itin place. It also is more rigid than concrete. However, concrete continually moves, shrinks and

expands which loosens the stiff hydraulic cement. After a couple years, water seepage and likely alsoefflorescence will appear around the edges of the plug.

How To Apply CrackWeld DIY Floor Repair Kits
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Easy Enough For A Novice The inside of the crack must be clean anddry. (Some contractors first place duct tape on both sides of the crack to makecleanup easier, particularly on rough surfaces.) Please follow these basic steps:

1. Inject the CrackWeld resin into the crack to wet the surfaces and make them tacky.2. Push dry silica sand into the crack to fill it.

3. Thoroughly saturate the sand with CrackWeld resin to fill it to the surface.

4. In 10 to 15 minutes, scrape off the surface to make it level and use sandpaper for neatappearance.

Hairline cracks that are too narrow for sand are filled and repaired with two passes of the CrackWeldresin. To repair wide cracks or cracks with a void underneath, first fill the crack partially with sand to

prevent the CrackWeld resin from running out. If additional sand is needed, use a DRY graded sand(no fines) or ideally, sandblasting sand with granulation like table sugar (30 to 40 grit).

CrackWeld Cures Quickly! Maintain an steady flow of CrackWeld through the mixing nozzle or itmay become plugged after a minute or two! After a stoppage, purge the mixer into a disposable cup.To minimize stoppages, repair small sections of the crack at a time say, 5-10 ft. or use up the whole

cartridge. Fill the crack with sand in 2 to 3 minutes after priming while CrackWeld is still tacky. Onlarger jobs, try to get a helper to do the scraping.

The CrackWeld DIY Concrete Floor Repair Kits are designed for a quick and easy do-it-yourself

application by homeowners. Each kit includes either two (2-pack) or four (4-pack) two-componentCrackWeld cartridges, as well as mixing nozzles, a bag of silica sand, and other accessories.

Coverage: For full-depth repair of a standard 4 slab, each CrackWeld kit will repair: CrackWeld 2-pack ... up to 50 ft. of a 1/16 crack or 25 ft. of a 1/8" crack CrackWeld 4-pack ... up to 100 ft. of a 1/16 crack or 50 ft. of a 1/8" crack

Tools Needed caulking gun, paint scraper or trowel and sand paper (80 grit).

Color When cured, CrackWeld has a gray color but when exposed to direct sunlight it may changehues. Broadcasting sand over CrackWeld (silica sand is included) before it cures will result in a lightergray color. Sanding or better yet, grinding the repair even with the sidewalk will reduce the polymer's

exposure to sun. Due to the high silica content of the repair (about 80%) the surface usually holdssome stain or paint.

Reference

http://www.radonseal.com/crack-injection/slab-cracks.htm

CrackWeld 2-Pack
http://www.radonseal.com/crack-injection/slab-cracks.htmhttp://www.radonseal.com/crack-injection/images/CrackWeld-2-pack-700px.jpghttp://www.radonseal.com/crack-injection/images/CrackWeld-2-pack-700px.jpghttp://www.radonseal.com/crack-injection/images/CrackWeld-2-pack-700px.jpghttp://www.radonseal.com/crack-injection/slab-cracks.htm

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How to Permanently Repair Leaking Cracks in Concrete Floors