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 Siloxa-Tek 8505 are required wet-on-wet. The second coat is applied immediately after the first coat while the first coat is still wet, since the Siloxa-Tek 8505 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 Siloxa-Tek 8505 is a penetrating sealer it will dry invisible and will not show footprints.
Can I paint after sealing? In order to continue repelling oils and staining we do not recommend painting over the Siloxa-Tek 8505
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.
How many gallons do I need to treat 250 square feet? The ready to use gallon will cover up to 250 square feet per gallon per coat. You will need 2 gallons of Siloxa-Tek 8505 ready to use.
What can I use to apply this product? The Siloxa-Tek 8505 can be applied with a garden variety pump sprayer, 3/8" nap paint roller or a brush.
How do I clean out the sprayer after sealing? Since the Siloxa-Tek 8505 is a water based product you can use regular soap and water to clean out the sprayer and other application tools.
How do I get oil stains out of my concrete? We recommend a highly concentrated, oil busting dish soap, such as Dawn. Squirt it over the stain and spread it around to cover the entire affected area. Let it sit for about an hour, then mop up the dish soap and oil with a paper towel.
Where can I buy this product? The Siloxa-Tek 8505 is available through a number of distributors found on our distributor page.
The Siloxa-Tek 8505 dried tacky and sticky, what happened and how do I fix it? If over applied or applied past the point of the concrete's absorption the excess sealer material will dry on the surface leaving the concrete feeling tacky/sticky. In order to remediate this issue use a mixture of ammonia and water (typically 4 oz of ammonia : 1 gallon water ratio) and spray it on the concrete, wipe or broom the surface working in the mixture on the tacky/sticky areas.