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 Lithi-Tek® 9500 are required wet-on-wet. The second coat is applied immediately after the first coat while the first coat is still wet. Since the Lithi-Tek® 9500 is a hydrophobic product it will try to repel the second coat if the second coat is applied after the first coat has dried.
Can I walk on the first coat to apply the second coat? Yes, you can walk on the first coat to apply the second coat. Since the Lithi-Tek® 9500 is a penetrating sealer it will dry invisible and will not show footprints.
What do you mix the concentrate with? The Lithi-Tek® 9500 concentrate is mixed with water. 1 gallon of Lithi-Tek® 9500 is mixed with 4 gallons of water. Distilled water is preferred.
Can I paint after sealing? Yes, you can paint after applying the Lithi-Tek® 9500 as long as an oil or enamel based paint is used. Always make sure to test for comptaibility prior to use. Since the Lihti-Tek® 9500 is a hydrophobic sealer it will repel any latex or water based paints.
Does the concrete need to be dry before sealing? Yes, the concrete needs to be as dry as possible before sealing in order for the substrate to absorb as much sealer as possible. 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.
My floor turned white after sealing, what happened? This is a common result of over application. Once the concrete reaches its point of absorption any material that was unable to penetrate reacts with the carbon dioxide in the air. This reaction leaves a white, powdery residue on the surface of the concrete. This can easily be removed by sweeping the concrete with a wire brush and then using a shop vac to get rid of the excess.
Why cant I use this product on brick or concrete blocks? This product is not recommended for use on brick because the Lithi-Tek® 9500 is a penetrating, reactive sealer. Bricks do not contain enough free lime and calcium for the sealer to react with and this causes the bricks to dry with a white, powdery residure. This product is not recommended on concrete blocks because concrete blocks are extremely porous. The best product to seal bricks and concrete blocks is the Siloxa-Tek® 8510.
How many gallons do I need to treat 1000 square feet? You will need 2 gallons to treat 1000 square feet. Each gallon of Lithi-Tek® 9500 will cover up to 1000 square feet per coat (or 500 square feet for both coats).
What can I use to apply this product? The Lithi-Tek® 9500 can be applied with a garden variety pump sprayer, commercial grade sprayer, 3/8" nap paint roller or a brush.
How do I mix the product with water? The Lithi-Tek® 9500 is a concentrated product that needs to be mixed with water prior to application. Pour the 1 gallon of Litih-Tek® 9500 into a 5 gallon bucket. Next add 4 gallons of water into the 5 gallon bucket. Mix the water and 9500 mixture well. You can then pour the mixture into a sprayer to spray apply, or you can did a nap paint roller into the bucket and roll apply.
How do I clean out the sprayer after sealing? Since the Lithi-Tek® 9500 is a water based product you can use regular soap and water to clean out the sprayer and other application tools.