Adhesives Technology Crack-Kit CRACK

Crack-Kit is a structural crack-injection kit pairing CRACKBOND LR-321 injection resin with Miracle Bond Repair Epoxy as the capping paste.

Low-viscosity resin for structural cracks in slabs, walls, and foundations
Non-sag Miracle Bond cap for ports and the crack face
Moisture-insensitive paste on damp concrete

$190.85

Availability: In stock ( 6 Available )

Details

Adhesives Technology Crack-Kit Structural Epoxy Injection Kit

Adhesives Technology Crack-Kit is a structural crack-injection kit that pairs CRACKBOND LR-321 low-viscosity injection resin with Miracle Bond Repair Epoxy as the capping paste. It is used for about 8 to 10 feet of structural crack work in slabs, walls, and foundations. Surface-mount ports with stainless check balls come in the kit with the resin and cap. Keep Crack-Kit on non-moving structural cracks and follow the current LR-321 and Miracle Bond sheets on the job.

Key Features

Low-viscosity LR-321 resin for structural injection
Miracle Bond non-sag capping paste for ports and the crack face
Moisture-insensitive paste for damp surfaces
Surface-mount ports with stainless check balls included
For slabs, walls, ceilings, and foundations
Structural epoxy injection of non-moving concrete cracks

Applications

Structural epoxy injection of concrete cracks
Slabs, walls, ceilings, and foundations
Vertical injection starting at the lowest port
Horizontal injection from the widest part of the crack
Field kits for maintenance and restoration crews

Technical Specifications

Property	Value
Product	CRACK-KIT complete crack injection kit
Part number	CRACK
Coverage	About 8 to 10 lineal feet of crack
Injection resin	CRACKBOND LR-321 LV, ~500 cP, 2:1 epoxy
Capping paste	Miracle Bond Repair Epoxy, 1:1 non-sag
LR-321 standards	ASTM C881 Type I, II, IV & V, Grade 1, Class C; AASHTO M235
Ports	CRPORTSS surface-mount ports with stainless check ball
Accessories	Extension tubing, nozzles, mixing cups, putty knife, gloves
Dispenser	Heavy-duty caulk gun (not a specialty dual cartridge tool)
Miracle Bond application temp	40 to 110°F (4 to 43°C)
Miracle Bond hard cure	About 3 hr at 75°F, 1/4 in. film
Shelf life (components)	24 months unopened, stored dry

Product documents: CRACKBOND LR-321 Technical Data Sheet (PDF) | Miracle Bond Repair Epoxy Technical Data Sheet (PDF)

Frequently Asked Questions

What resin and cap chemistry ship in the Crack-Kit?
Crack-Kit pairs CRACKBOND LR-321 low-viscosity injection resin with Miracle Bond Repair Epoxy as the capping paste. LR-321 is the hi-mod injection epoxy. Miracle Bond is the non-sag paste that seals ports and the crack face.

How much structural crack can a Crack-Kit typically cover?
Crack-Kit is sized for about 8 to 10 feet of structural crack work. That coverage is for a typical crack in a slab, wall, or foundation, not a pack-count sales pitch. Extra resin or paste is a separate takeoff if the crack is longer.

Is Crack-Kit meant for moving cracks?
No. Crack-Kit is structural injection for non-moving cracks. LR-321 and Miracle Bond are repair materials, not joint fillers. For a control joint that must keep moving, use Crackbond JF-82 FAST instead.

What temperature window does the LR-321 resin in Crack-Kit list?
CRACKBOND LR-321 in the Crack-Kit is placed between 50F and 100F. Stay in that band so the low-viscosity resin still injects and the Miracle Bond cap still sets on the face.

Does the Miracle Bond cap in Crack-Kit work on damp concrete?
Yes. Miracle Bond in the Crack-Kit is a moisture-insensitive non-sag paste. It is used as the capping paste and port adhesive on the crack face, including damp concrete, before LR-321 is injected.

Does the LR-321 resin in Crack-Kit carry an NSF drinking-water listing?
The CRACKBOND LR-321 family used in Crack-Kit is listed to NSF/ANSI 61. Confirm the current LR-321 sheet on potable-water related crack work. Miracle Bond remains the non-sag cap on the crack face.

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