Countertop® 770 Concrete Sealer

Auxiliary Information

• Technical Specs

  Technical Specs

  • Feature: Water & Stain Repellent
  • Chemistry: Modified Silane/Siloxane
  • Color: Clear
  • Finish: Invisible
  • Category: Penetrating
  • Carrier: Water
  • Availability: Concentrate: Makes 1/2 Gallon
  • Packaging: 1 Pint (16 oz.)
  • Coverage: 60 sq. ft. per coat
  • Reconstitution Ratio: 1 part sealer : 3 parts water
  • Interior/Exterior: Interior/Exterior
  • Application Method: Roller, Brush
  • Application Temperature: 45 F - 90 F
  • Number of Coats: 2
  • Time Between Coats: 5 Minutes
  • Drying Time (dry to touch): 6 Hours
  • Drying time (full cure): 24 Hours
  • Time before/after rain: 48 Hours
  • New Concrete: Yes, at least 28 days after being poured
  • Storage/Shelf Life: 1 Year
  • Clean up: Soap/water
  • Paintable: No
  • VOC Content: 0 g/L
• Preparation

  Preparation

  1. New “green” concrete must be properly cured. Concrete should obtain 80% of design strength, typically achieved within 14-28 days.
  2. The concrete substrate must be structurally sound and clean of oil, grease, dirt, wax, curing compounds, efflorescence, paints, previous sealers, adhesives and other contaminants that might interfere with the penetration of the sealer. Power wash, acid etch or mechanically scarify as necessary to achieve the desired surface condition. If acid was used to clean the concrete, neutralize the surface and rinse with water prior to application. Allow for proper dry time before application. Surface zone moisture content should not exceed 4% wt. Do not apply if standing water is visible.
  3. Surface and air temperatures must be at least 40°F during application. Surface and air temperatures should not exceed 95°F. Do not apply when temperatures are expected to fall below 32°F within 8 hours or when rain is expected within 12 hours following application. Keep material from freezing. If freezing conditions exist before application, let the substrate thaw before application. Do not apply during inclement weather or when inclement weather is expected within 12 hours.
  4. Crack, patching and expansion joint sealants can be applied before application; always test for compatibility and adhesion.
  5. Protect people, property, vehicles, window glass, roofing materials, plastic products, shrubbery, landscaping and all surfaces not set for treatment from overspray.
• Application

  Application

  1. Always test a small area before application to ensure desired performance, aesthetics, coverage rates and to verify application technique. Let test area dry thoroughly, 5-7 days, before inspection.
  2. Always mix the concentrate with 3 parts water prior to application. Distilled water is recommended for maximum performance. Stir material throughly before and during application.
  3. Two wet-on-wet coats are needed to ensure complete coverage. Apply with a roller, brush or low-pressure non-atomizing sprayer. Apply to saturation and let the first coat penetrate for 5-10 minutes then reapply a second coat in the same saturating manner. Less material will be needed for the second coat. Roll or broom out any puddles until the sealer penetrates the substrate. If it starts to rain, stop treatment and cover the impregnated areas.
• Notes

  Notes

  Maintenance:

  The concrete surface can be cleaned with mild soap and water. No citrus or vinegar-based products should be used. Organic does not always mean “mild” and can include citrus ingredients that you’ll want to avoid.

  Dry Time

  Typical drying time is 4-6 hours at 70°F and 50% relative humidity. Cooler temperatures or higher relative humidity can extend the drying time.

  Clean Up

  Clean equipment and tools with soap and water. Unused or old material may be disposed of in a waste disposal site in accordance with local, state and federal laws.

  Precautions/Safety

  Avoid contact with skin, eyes and clothing, do not take internally. Use appropriate safety equipment during application and handling. Please refer to the safety data sheet (SDS) for additional precautionary instructions before use.

  Best Performance

  • Proper application is the responsibility of the user.
  • Make sure the most current versions of technical data sheetsand safety data sheets are being used.
  • Do not use in immersion service or constant chemical exposure areas.

  Coverage

  1 coat: 60 square feet per 16 oz. 2 coats: 30 square feet per 16 oz. Variations in texture and porosity of substrate will affect the coverage and performance of the product.

• FAQ

  FAQ

  What does wet-on-wet mean? Wet-on-wet means that the second coat is applied while the first coat is still wet. Two coats of the Countertop 770 are required wet-on-wet. The second coat is applied immediately after the first coat while the first coat is still wet, since the Countertop 770 is a hydrophobic product it will try to repel the second coat if the second coat is applied after the first coat has dried.

  Does the concrete need to be dry before sealing? Yes, the concrete needs to be as dry as possible before sealing. We recommend the moisture content of the concrete be less than 4% wt. It is recommended to wait at least 24-48 hours after rain and pressure washing before sealing.

  What do you mix the concentrate with? The Countertop 770 is mixed with water. 1 pint of Countertop 770 is mixed with 3 pints of water.

  How do I mix the Countertop 770 product with water? The Countertop 770 is a concentrated product that needs to be mixed with water prior to application. Pour the 16 oz. (Pint) of Countertop 770 into a small bucket. Next add 3 pints of water into the bucket. Mix the water and 770 mixture well. You can then dip a small roller or brush into the bucket to apply.

  What is the difference between the Countertop 770 and the Countertop 660? The Countertop 660 is a water based acrylic countertop sealer that will leave a low sheen finish. The Countertop 770 is a penetrating countertop sealer that will leave a natural finish.

  Where can I buy this product? The Countertop 770 is available through a number of distributors found on our distributor page.