SureSpray Concrete Overlay by Surecrete
SureCrete’s SureSpray Concrete Overlay Mix is a self-bonding, single component cementitious coating for texturing interior and exterior concrete surfaces.
- Interior/Exterior Use for Horizontal Concrete Surfaces
- Coverage per Bag: 125-175 sq. ft. per bag
- VOC Rating: 0g/L
- Pigment-able with Surecrete Color Packs
- Applied with Compressed Air Equipment or Trowel/Squeegee
Use SureSpray On
- Commercial Floors
Surface PreparationThe principles for surface preparation for SureSpray are aligned with other cement-based overlays placed on concrete and remain constant; the substrate must be:
- Clean: The surface must be free of dust, dirt, oil, grease, paints, glues, sealers, curing agents, efflorescence, chemical contaminants, rust, algae, mildew and other foreign matter that may serve as a bond breaker
- Cured: Any concrete must be sufficiently cured to have sufficient hydration, approximately 7 - 14 days depending on temperatures and humidity.
- Sound: No system should be placed upon concrete or an existing cement-based overlay that is flaking, spalling, or has hibernating spalling.
- Profiled: Proper profile should follow the standard established by the International Concrete Repair Institute (ICRI) Technical Guideline no. 03732 for Concrete Surface Profile (CSP). The established profile is categorized as CSP-1 through CSP-4.
The most common means to properly profile many concrete slabs (especially exterior slabs) is through the use a pressure washer equipped with a turbo-tip and the use of SCR (see SCR TDS). Some concrete slabs that are hard troweled or that are not sound may require more aggressive profiling through diamond grinding or shot blasting. Customarily profiling is not required for application over another cement- based overlay.
- Air and substrate surface temperatures shall remain between 50°F (10°C) and 90°F (32°C) during and within 48 hours of placement.
- No precipitation should occur during or within 48 hours of placement. If SureSpray becomes wet prior to sealing, pigments will fade excessively and whiting will occur.
- Avoid high heat and / or windy conditions. Attempt to minimize application during such harsh conditions by working during cooler hours. Keep materials shaded prior to mixing, running water until cool, and setting up temporary walls for wind blocks.
- Interior applications and cool, shaded areas will take significantly longer to cure. Even in summer months, the winter mix design should be considered for these applications.
- This product (depending on weather conditions) should achieve initial set within 6 – 8 hours. Like concrete full cure is reached at 28 days.
- Sealer selection for a finished SureSpray project will require different cure times:
- SureSeal products for exterior applications requiring vapor permeability, may be applied as soon as overnight. See specific sealer TDS.
- Dura-Kote products for interior applications may require longer cure times, perhaps 24 hours or more. See specific sealer TDS
Upon surface preparation, some areas may require patching prior to application of SureSpray. Flash Patch or Deep Level is an excellent choice as a patching product to restore concrete to a sound state. Refer to Flash Patch or Deep Level TDS.Crack Treatment / Construction Joints
Cracks may require treatment: Refer to SCT-22 Crack and Spall Treatment and SCT-EP Epoxy Crack Treatment TDS to evaluate crack as static or structural to set expectation of treatment.
Never bridge SureSpray across any joint in concrete. Construction Joints in concrete have sufficient movement to “telegraph” through SureSpray applications. Large expansive slabs should have planned appropriate flexible caulks to allow for this movement.
Due to SureSpray’s diverse applications, there can be a significant difference in water demand between systems. Weather conditions and porosity of substrate will affect water demand as well. Approximate water demands for different systems per 50 pound (22.7 kg) bag SureSpray = 4 – 6 quarts (3.8 – 5.7 liters).
While water demands vary the steps for mixing remain constant:
- Add desired water, to a 5 gal. (18.9 liter) pail.
- Add 1 - Color Pack if desired.
- Mix with a handheld concrete mixer, such as a Collomix Xo-55 Dual Shaft Mixer for a minimum of 15 seconds.
- Slowly introduce SureSpray into the pail with mixer running.
- Scrape side of pail with a margin trowel to ensure all dry product is incorporated into the wet mix.
- Continue to mix for a minimum of 1 minute after all ingredients are combined to achieve a lump-free consistency.
- Additional water may be added up to 6 quarts (5.7 liters) total for 50 pound (22.7 kg) bag.
All SureSpray applications are recommended to have a base coat. Base coats may be sprayed or troweled/squeegeed.
Spray – utilizing a hopper gun such as Marshalltown Sharpshooter Hopper gun
- The surface should be saturated, surface dry (SSD or damp, no puddles).
- Common setting for spray gun orifice is approximately ¼” (6.3mm).
- Setting for air compressor should be approximately 8 ft³ (.23m³) per minute at 40 psi (276 kPa) continuous.
- Spray 100% coverage, leaving no bare spots.
- The surface should be saturated, surface dry (SSD or damp, no puddles).
- Pour a generous ribbon of SureSpray and tightly trowel or squeegee product over entire area.
- Stencils and tape patterns may be placed after scraping and sweeping of base coat, and prior to application of finish coat.
- Stencils and tape patterns may be removed as soon as product dries sufficiently to bear the foot traffic of the applicator, prior to sealing.
- The base coat must set sufficiently to bear the foot traffic of the applicator, approximately 2 – 6 hours (depending upon weather).
- The finish coat applies as the base coat described above. Alterations of air pressure, spray gun orifice size, and trowel techniques will yield numerous pleasing finish coats.
Depending upon the application selected, secondary coloring will provide aesthetic appeal to a project.
- Eco-Stain - 30 water base stain colors. Refer to Eco-Stain TDS.
- Eco-Accent – 10 dry antiquing colors. Refer to Eco-Accent TDS.
(Note: Before secondary coloring, the finish coat must dry sufficiently to bear the foot traffic of the applicator, approximately 2 – 6 hours [depending upon weather]. Scrape the surface of finish coat with a heavy-duty floor scraper and remove any loose material.)Sealing
To complete a SureSpray project sealing is required. While multi-colored, “designer finishes” may be sealed clear, for the simple single color projects, a pigmented sealer will yield the most appealing results.
Exterior jobs will require the sealing with an acrylic sealer, due to its vapor permeability. Excellent choices for exterior sealer include:
- SureSeal HS-360 - 30% solids, 600 g/L solvent
- SureSeal HS-340 - 30% solids, 400 g/L solvent
- SureSeal Super 30 - 30% solids, 600 g/L solvent
- SureSeal Pigmented SB – color sealer, 600 g/L
- SureSeal Pigmented SBL – color sealer, 400 g/L
- SureSeal Super WB – 30% solids water based
- SureSeal Super Pigmented WB
Refer to the appropriate TDS for details.For interior jobs there are more sealer choices available, as customarily vapor permeability is not a consideration. The above listed sealers will work fine as interior sealers, but other sealers with enhanced durability properties include:
- Dura-Kote Polyurethane Solvent Base Clear Gloss
- Dura-Kote Epoxy 100
- Dura-Kote Polyurethane Water Base Clear
- Dura-Kote PFC 120 Hybrid Solvent Based Polyaspartic
- Dura-Kote PFC 180 Hybrid Solvent Based Polyaspartic
Refer to the appropriate TDS for details.
(Note: if secondary coloring is not utilized before sealing, scrape the surface of finish coat with a scraper and remove any loose material.)
Two recognized US agencies have issued directives on minimum coefficient of friction, OSHA (Occupational Safety and Health Administration) and Department of Justice through the ADA (Americans with Disabilities Act). ADA is the more stringent of the two. ADA directs that accessible walkways have a minimum coefficient of friction of 0.6. Ramps have been directed to be 0.8. The applicator assumes the responsibility to meet these standards. Especially exterior surfaces or surfaces that may become wet, oily, or greasy require attention. Refer SureGrip (Additive) TDS and its accompanying coefficient of friction table.
Due to condition specific sites, always prepare an adequate number of test areas. Wear protection system and aesthetic suitability for products’ intended use should be included. On site sample approval is especially critical on substantial, heavy traffic situation or custom coloration.
Before SureSpray dries; spills and tools can be cleaned up with water.
Contact your local government household hazardous waste coordinator for information on disposal of unused product.See More