Raeco Sack & Patch is single component, sacking mix and topping compound consisting of a uniform, premixed blend of Portland cements and graded washed silica aggregates with polymer modification to promote lasting surface adhesion, for renovation and new construction. Sack & Patch can be applied from a feathered edge to 1/2" (12.7 mm.), for thickness greater than 1/2" use appropriate aggregate. Sack & Patch can be used for horizontal, vertical and overhead surfaces. Suitable for interior and exterior use, a sealer or coating is recommended when used for a wearing surface. Sack & Patch contains no gypsum, chlorides, ferrous metals or corrosive agents.

PROPERTIES

COMPRESSIVE STRENGTH, PSI (ASTM C-1439)
3 Days: 3290
7 Days: 4040
28 Days: 5100

BOND STRENGTH (ASTM C-1042)
3 Days: 1100 psi
7 Days: 1500 psi
28 Days: 2100 psi

SLATE SHEAR BOND (ASTM C-1092 Mod.)
7 Days: 210 psi
28 Days: 660 psi

FLEXURAL STRENGTH (ASTM C-348)
7 Days: 1000 psi
28 Days: 1500 psi

TENSILE STRENGTH (ASTM C-190)
7 Days: 800 psi

Properties based on 4.5 quarts per 50 lb. bag

Horizontal, vertical & overhead application

Fire Retardant

Non-toxic

Rapid Strength gain

AREAS OF USE

Repair walls, tilt panels and columns

Overlays/patching for set time requirements

Horizontal, vertical & overhead applications

Exterior applications for walkways & ramps

Warehouse & industrial repairs or overlays

Areas exposed to heavy-duty loads

Leveling or creating pitch to drains

Areas with varying weather cycle

Parking deck resurfacing or patching

Mud screeds for same day pour of cement products

Masonry repair

PACKAGING
50 lb. bags (22.5 kg.)
(48 bags per pallet)

APPROXIMATE COVERAGE
50 lb. bag: 50 s.f. (4.6 s.m.) @ 1/8" (3.18 mm.)

Bulked with #8 Silica sand
50 lb. bag: 18.75 s.f. (1.73 s.m.) @ 1/2" (12.7 mm.)

Bulked with 3/8" pea gravel
50 lb. bag: 9.06 s.f. (.83 s.m.) @ 1" (25.4 mm.)

For Thickness:
1/2" to 1" use #8 silica sand @ 25 lbs.(11.25 kg) per bag
1" & up use 3/8" pea gravel @ 25 lbs.(11.25 kg) per bag

SURFACE PREPARATION
Surfaces to be covered must be structurally sound, clean and free of dust, oil, grease, sealers, curing compounds, laitance, release agents or other surface contaminants. Were possible, cut vertical shoulders at edges to accommodate repair. For smooth surfaces, we recommend mechanical abrasion to achieve an acceptable surface profile. The cleaning and preparation method selected depends on both the sub-floor material and its condition. Acid etching is not recommended. For optimum adhesion, dampen surface with water and remove any puddles before application of product. Raeco R-2000 may be used as a bonding medium.

MIXING
Raeco Sack & Patch is mixed by adding clean water at a rate of approximately 5 – 5.5 quarts (4.75 – 5.23 liters) per 50 lb. sack. Water should be added to the mixing container first, then the Sack & Patch, followed by the appropriate aggregate, if necessary. Using a mixing paddle (a whip type is recommended) with a low speed drill (400 to 500 rpm), mix thoroughly (2 to 3 minutes) until the powder has been completely dispersed and the mix has acquired a smooth homogeneous texture. Do not add more water once Sack & Patch has started setting up. The pot life of the mix averages about 15 minutes and working time 20 to 25 minutes, depending on the temperature. It is recommended to mix only the amount of Sack & Patch that can be applied within that amount of time.

APPLICATION
Apply the Raeco Sack & Patch mixture quickly on the prepared surface. Should a broom finish be desired, do so right away. Do not add or spray water onto the surface for finishing, it may cause the surface to blister or spall. Rough spots or trowel marks may be shaved or sanded off the surface after a couple of hours. When patching or leveling larger areas with Sack & Patch, applying a film-forming curing/sealing compound immediately after application to help reduce the possibility of surface shrinkage cracks is recommended. For installations 3/4" thick or greater, a wet curing method should be used, by means of curing blankets or damp burlap. When Sack & Patch is going to be a wearing surface, a sealer or coating is recommended.

When Sack & Patch is to be applied on surfaces other than concrete (i.e., wood, metal, terrazzo, etc.), consult Raeco's Technical Service Department for recommended preparation, bonding, and application procedures.

LIMITATIONS
Raeco Sack & Patch should only be applied over substrates that are between 40° and 90° F. (4.4° and 32.2° C.) Do not apply in the rain, and do not allow to freeze within 24 hours of application. When applying Sack & Patch to thickness greater than 1/2" (12.7 mm.), bulk the mix with the appropriate type and amount of aggregate (refer to Coverage Section).

WARNING
Raeco Sack & Patch contains Portland cement and silica sand. Use of a dust respirator, safety goggles and rubber gloves are recommended. In case of contact with eyes, immediately flush with water and consult a physician. Avoid hazards by following all precautions found in the Material Safety Data Sheet (MSDS), product labels and technical literature. Please read this information prior to using product.