Surecrete’s SCT-22 concrete crack repair is a rapid set, technologically advanced, high strength, ultra-low viscosity urethane treatment material. This 2-part, 1:1 system is 100% solids, no VOC’s and designed for rebuilding spalls and treating static cracks in concrete very quickly. SCT-22 may be used prior to the application of an overlay for concrete that has random cracking or as a stand-alone treatment for spalled and damaged concrete. Its rapid setting times makes SCT-22 the premier restoration product for industrial warehouse floors that have traffic area spalls and construction and a sign of joint damage. A ten to fifteen minute period is all that is required for “drive-over” time. SCT-22 cures from –20°F (-29°C) to 130°F (54°C). It is self-leveling, self-priming, and meets USDA and FDA requirements.
Whatever your project may be, the first priority of surface preparation is to make sure that your surface is sound enough for whatever decorative coating or overlay you wish to apply. SCT-22 will help repair concrete cracks, and keep your project on time and on budget. Repairing or “treating” a crack will always be more cost efficient than completely destroying a concrete slab and pouring a fresh one. It’s simple application method also allows it to be used by more than just trained professional contractors. Homeowners and DIY weekend warriors can use SCT-22 that seals concrete without any formal training to repair their aging and cracking cement slabs.
Below are some concrete crack repair that might need to be repaired with SCT-22:
- driveways, sidewalks and steps
- apartment/condominium walkways
- patios & pool decks
- interior commercial and residential flooring
- repairing floor cracks
- Concrete Step Stress Cracks
- old concrete slabs
- worn-down surfaces
- cracked concrete surfaces
- injected into hairline cracks
- repairing cracks concrete may have
- cracked walls
Frequently Asked Questions About Surecrete SCT-22:
How Do You Apply Surecrete SCT-22 Concrete Crack Repair?
SCT-22 was meant to be used by anyone, not just professional contractors with formal training, see repair step by step:
- Use an electronic grinder and a diamond “turbo blade” to open up the crack and remove any structurally unsound water or loose concrete debris.
- Clean out the newly “squared” cracks using compressed air to remove all dust and particulates .
- Fill the dressed crack with clean, dry sand until flush with the surface.
- Shake cartridge for at least 30 seconds, then remove cap and install flow restrictor on top of ports and insert the assembled dual cartridge into the “gun”.
- Point tip up and gently squeeze the gun’s trigger to bleed off air in the cartridge, then squeeze off a small amount of material to make sure only properly mixed material is applied.
- You’re finally ready to apply SCT-22 to the crack ! Just make sure to continuously apply even pressure while dispensing product for fixing concrete.
SCT-22 Concrete Crack Repair
|Packaging:||22 oz Cartridge Kit|
cartridge – 15102018
gun – 75106001
flow restrictor – 75106002
10 flow restrictors – 75106003
tip – 75106004
Can I use a different gun than one it comes with?
Technically yes, but it would have to be of the same type that allows for two cartridges and combines them at the tip in the same manner as the gun that is provided.
If I use SCT-22 to fix a crack, can I be sure the crack won’t come back?
Unfortunately no, Concrete moves throughout its life, it expands and contracts with temperature change, humidity levels and because of the substrate it is poured on. It is called a treatment because it fills the voids for an overlay to be applied so the crack won’t transfer to the overlay. This said, it still could come back either in the same spot or near where it was on concrete floors.
Will sealer stick to the SCT -22
Yes, Most Dura-Kote sealers will stick to SCT-22 as long as it is sanded or roughed before it is applied. Sealers require a certain amount of “tooth” to allow for proper bond. This is sufficient for Sct-22.
Do I have to use the whole container or can I save some for another job?
If you save the plug that comes in shipping, you can re-insert it and save for another job. You will have to get a replacement mixing tube and cartridge dispenser to reuse. Which are available at Surecrete.
How soon can I go over SCT-22 with a new coating?
In as little as 15-20 minutes, SCT-22 is ready to be ground out to make a level surface and is ready at that point for a new coating to be applied.
Specs and Properties of SCT-22
Coverage 22 oz cartridge = 1/4″ wide X 3/4″ deep X 17′ long crack (withoutsand)
Pot Life Approx. 3 mins
Shelf Life 1 year in original
VOC Rating 0 g/L
Solids Content 100%
ASTM D2240 = 67-72 Durometer
Tensile Strength ASTM D412 = 4,600 PSI
Elongation ASTM D412 = 6-8%
Compressive Strength ASTM C10 = 4,800 PSI (with
sand); 3,900PSI (neat)
Bond Strength ASTM 882-99 = 3,450 PSI
PART 1 GENERAL
1.1 SECTION INCLUDES
A. Specialty concrete products including the following:
1. Concrete patch and repair.
1.2 RELATED SECTIONS
A. Section 03 35 19 – Colored Concrete Finishing.
B. Section 03 05 10 – Concrete Color Additive*.
C. Section 03 30 00 – Cast-in-Place Concrete.
D. Section 12 36 13 – Concrete Countertops.
E. Section 03 35 33 – Stamped Concrete Finishing.
F. Section 03 45 13 – Faced Architectural Precast Concrete.
G. Section 03 49 00 – Glass-Fiber-Reinforced Concrete.
H. Section 03 53 00 – Concrete Topping.
I. Section 03 01 40.51 – Cleaning of Precast Concrete.
J. Section 03 01 40.61 – Resurfacing of Precast Concrete.
K. Section – .
L. Section – .
M. Section 09 27 00 – Plaster Fabrications.
N. Section 09 67 23 – Resinous Flooring.
O. Section 09 97 23 – Concrete and Masonry Coatings.
A. AASHTO T260 – Standard Method of Test for Sampling and Testing for Chloride Ion In Concrete and Concrete Raw Materials.
B. AASHTO T259 – Standard Method of Test for Resistance of Concrete to Chloride Ion Penetration.
C. ANSI A118.4 – Specifications for Latex Portland Cement Mortar.
D. ASTM International (ASTM):
1. ASTM C23 – Determination of Particle Size Distribution of Soils in Forensic Science Using Classical and Modern Instrumental Methods.
2. ASTM C67 – Standard Test Methods for Sampling and Testing Brick and Structural Clay Tile.
3. ASTM C78 – Standard Test Method for Flexural Strength of Concrete (Using Simple Beam with Third-Point Loading).
4. ASTM C97 – Standard Test Methods for Absorption and Bulk Specific Gravity of Dimension Stone.
5. ASTM C109 – Standard Test Method for Compressive Strength of Hydraulic Cement Mortars (Using 2-in. or 50-mm Cube Specimens).
6. ASTM C170 – Standard Test Method for Compressive Strength of Dimension Stone.
7. ASTM C190 – Method of Test for Tensile Strength of Hydraulic Cement Mortars.
8. ASTM C309 – Standard Specification for Liquid Membrane-Forming Compounds for Curing Concrete.
9. ASTM C348 – Standard Test Method for Flexural Strength of Hydraulic-Cement Mortars.
10. ASTM C482 – Standard Test Method for Bond Strength of Ceramic Tile to Portland Cement.
11. ASTM C 518 – Standard Test Method for Steady-State Thermal Transmission Properties by Means of the Heat Flow Meter Apparatus.
12. ASTM C666 – Standard Test Method for Resistance of Concrete to Rapid Freezing and Thawing.
13. ASTM C880 – Standard Test Method for Flexural Strength of Dimension Stone.
14. ASTM C882 Modified – Standard Test Method for Bond Strength of Epoxy-Resin Systems Used With Concrete by Slant Shear.
15. ASTM C944 – Standard Test Method for Abrasion Resistance of Concrete or Mortar Surfaces by the Rotating-Cutter Method.
16. ASTM C979 – Standard Specification for Pigments for Integrally Colored Concrete.
17. ASTM C1185 – Standard Test Methods for Sampling and Testing Non-Asbestos Fiber-Cement Flat Sheet, Roofing and Siding Shingles, and Clapboards.
18. ASTM C1186 – Standard Specification for Flat Non-Asbestos Fiber-Cement Sheets.
19. ASTM D1849 – Standard Test Method for Package Stability of Paint.
20. ASTM D3359 – Standard Test Methods for Measuring Adhesion by Tape Test.
21. ASTM D3363 – Standard Test Method for Film Hardness by Pencil Test.
22. ASTM D4946 – Standard Test Method for Blocking Resistance of Architectural Paints.
23. ASTM E84 – Standard Test Method for Surface Burning Characteristics of Building Materials.
24. ASTM G53 – Practice for Operating Light- and Water-Exposure Apparatus (Fluorescent UV-Condensation Type) for Exposure of Nonmetallic Materials.
A. Submit under provisions of Section 01 30 00 – Administrative Requirements.
B. Product Data: Manufacturer’s data sheets on each product to be used, including:
1. Preparation instructions and recommendations.
2. Storage and handling requirements and recommendations.
3. Installation methods.
C. Shop Drawings:
D. Selection Samples: For each finish product specified, two complete sets of color chips representing manufacturer’s full range of available colors and patterns.
E. Verification Samples: For each finish product specified, two samples, minimum size 6 inches (150 mm) square representing actual product, color, and patterns.
1.5 QUALITY ASSURANCE
A. Manufacturer Qualifications: Minimum 10 year experience manufacturing all products specified in this section with the capacity to produce and deliver required materials without causing delay in work, and capable of providing field service representation during construction.
B. Installer Qualifications: Minimum 2 year experience installing similar products and certified in writing by the manufacturer.
C. Source Limitations: Obtain primary materials including primers, patching agents, resins, hardening agents, colorants, and top coats from single source from single manufacturer.
D. Mock-Up: Provide a mock-up for evaluation of surface preparation techniques, aesthetic effects and application workmanship.
1. Finish areas designated by Architect.
2. Construct at least one month before start of work.
3. Mock-Up shall be on site in areas designated by architect.
4. Retain samples of all materials used in each mock-up for comparison purposes.
5. Do not proceed with work prior to receipt of written acceptance of mock-up.
6. Approved mock-up may remain part of finished work.
7. Approved mock-up may not remain part of finished work. Remove and dispose of material when no longer required.
1.6 PRE-INSTALLATION MEETINGS
A. Convene minimum two weeks prior to starting work of this section.
1.7 DELIVERY, STORAGE, AND HANDLING
A. Deliver and store products in manufacturer’s unopened packaging bearing the brand name and manufacturer’s identification until ready for installation.
B. Handling: Handle materials to avoid damage.
1.8 PROJECT CONDITIONS
A. Maintain environmental conditions (temperature, humidity, and ventilation) within limits recommended by manufacturer for optimum results. Do not install products under environmental conditions outside manufacturer’s recommended limits.
A. Ensure that products of this section are supplied to affected trades in time to prevent interruption of construction progress.
PART 2 PRODUCTS
A. Acceptable Manufacturer: SureCrete Design Products, which is located at: 15246 Citrus Country Dr.; Dade City, FL 33523; Toll Free Tel: 800-544-8488; Tel: 352-567-7973; Fax: 352-521-0973; Email:firstname.lastname@example.org; Web:www.surecretedesign.com
B. Requests for substitutions will be considered in accordance with provisions of Section 01 60 00 – Product Requirements.
2.2 CONCRETE PATCH AND REPAIR
A. Crack Repair:
1. Product: SCT-22 – Professional Concrete Crack Repair Fast Cure Urethane as manufactured by SureCrete Design Products.
2. Type: Rapid set, technologically advanced, high strength, ultra-low viscosity urethane treatment material.
3. Tensile Strength (ASTM D412): 4600 psi.
4. Elongation (ASTM D412): 6-8%.
5. Compressive Strength (ASTM C10): 4800 psi (with sand), 3900 psi (neat).
6. Bond Strength (ASTM 882): 3450 psi.
7. Pot Life: Approximately. 3 minutes.
PART 3 EXECUTION
A. Do not begin installation until substrates have been properly prepared.
B. If substrate preparation is the responsibility of another installer, notify Architect of unsatisfactory preparation before proceeding.
A. Clean surfaces thoroughly prior to installation.
B. Prepare surfaces using the methods recommended by the manufacturer for achieving the best result for the substrate under the project conditions.
C. Prepare exterior surfaces with chemical cleaner/profiler followed by rinsing with 3000-psi (20670 kPa) (minimum) pressure washer equipped with a turbo-tip to remove loose surface matrix and loose aggregate.
A. Install in accordance with manufacturer’s instructions.
3.4 CONCRETE RESTORATION / CONCRETE REPAIR
A. Remove all laitance, efflorescence, chemical contaminants, grease, oil, old paint, and other foreign matter. The surface shall require profiling. Sand blasting, grinding or abrasive blasting may be necessary achieve bare concrete.
B. The prepared surface shall be clean and structurally sound.
C. Substrate must be 40 degrees F (4 degrees C) and rising before installation. Surface at 90 degrees F (32 degrees C) and above shall be cooled before installation. Dampen area with fog tipped sprayer before using, leaving no puddles.
D. Mix consistency shall be maintained throughout application process. Do not apply in layers greater than 2 inches (51 mm). No tempering with additional water is allowed. Begin application immediately after mixing with water and work thoroughly into surface of area to be filled. Do not overwork. Minimize troweling.
3.5 CONCRETE RESTORATION / CEMENTITIOUS TOPPING
A. Base Coat: Mix product with water per manufacturer’s instructions. Mechanically mix to a lump-free consistency.
1. Begin by saturating area to be covered with water. Before application of base coat, remove any excess water leaving no puddles. The surface shall be saturated, surface dry (SSD).
2. Place the base coat with a brush, broom, or squeegee and force into surface completely covering existing concrete. Lightly broom to obtain profile.
B. Finish Coat: Mix finish coat same as the base coat mix ratios.
1. Begin by saturating the base coat with water, leaving no standing puddles, SSD.
2. Place material with steel squeegee and lightly broom. As product dries, scrape and use leaf blower to remove loose material.
C. Apply two coats of selected sealer.
D. Curing: Allow to air cure after application.
1. Prevent the overlay from drying out too quickly. Provide favorable application conditions by working during cooler hours, keeping all materials shaded prior to mixing and setting up plastic or temporary walls to block wind.
A. Protect installed products until completion of project.
B. Touch-up, repair or replace damaged products before Substantial Completion.