GhostShield Siloxa-Tek 8505 Oil Repellent Sealer

You have just built the house of your dreams, or perhaps it’s your first home. It has that new home smell, everything is perfectly clean and the concrete is so clean you could eat off of it. You pull your classic car into the driveway, pull out the next morning and your dream is tarnished. Your concrete is covered in a big ugly oil spot. The water repellant you applied did nothing. This is preventable!
Automatic quantity discount for purchases of 4 or more gallons & shipping is FREE.

Siloxa-Tek 8505 is a penetrating concrete sealer that adds a water and oil repellent to interior or exterior concrete. 250 Sq. Ft. per gallon per coat. Two coats required.



GhostShield Siloxa-Tek 8505 Concrete Sealer / Oil & Water Repellent 1 Gallon

SKU: 8505GS

Price Each:

$ 79.95

Price Multiple:

$ 74.95

4 or more for quantity discount


GhostShield Siloxa-Tek 8505 Ultra Concentrate Concrete Sealer / Oil & Water Repellent Makes 5 Gallons

SKU: 8505C

Price Each:

$ 279.95

Price Multiple:

$ 274.95

4 or more for quantity discount


GhostShield 8510 VOC Concrete Sealer & Oil Stain Guard - 1 Gallon

SKU: 8510-1

Price Each:

$ 84.88


GhostShield 8510 VOC Concrete Sealer & Oil Stain Guard - 5 Gallon

SKU: 8510-5

Price Each:

$ 419.99

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What is Ghostshield 8505

Siloxa-Tek 8505 Concrete Sealer from Ghostshield is a penetrating concrete oil repellant sealer that has zero impact on traction or the appearance of concrete. Typically used in conjunction with a concrete densifier, Siloxa-Tek 8505 resist mold and mildew growth, repels water, oil and other automotive fluids — protecting your garage floor, driveway and other masonry surfaces from staining. Used in conjunction with a densifier, it reduce cracking and Chloride Ion ingress. A simple and affordable solution with a 100 year warranty. Technical Data.

The Clear Choice. Protection, not Appearance

Ghostshield 8505 makes absolutely no change to the looks of your garage floor, sidewalk or driveway. It is a penetrating sealer with the addition of a fluorocarbon to aid in the prevention of oil stains or the absorption of other automotive fluids. If you would prefer a permanent product that adds sheen or gloss, consider TrueLock PPC.

The Process

The first step is cleaning the concrete and removing any existing sealers or coatings. Then you need to densify the concrete. You should wait 7 days after densification before proceeding with the GhostShield Siloxa-Tek 8505 Oil Repellent Sealer. You should apply two coats. Wet on wet, typically only waiting 5 minutes between coats in any one area — so you work in smaller sections. Please see installation instructions. PLEASE VERIFY WHICH PRODUCT YOU HAVE AND IF IT NEEDS DILUTED.

What is Ghostshield 8510

Ghostshield 8510 offers all the protection of 8505 in a superior penetrating formula. 300 Sq. Ft. per gallon coverage, this solvent based concrete sealer easily repels oil and water while being easier to install and offering better overall penetration and performance. For best results using a densifier 7 days prior is suggested. We suggest TL37 diluted 50% with water. VOC 300 g/l. Solvent safe sprayer is suggested. Not all inexpensive sprayers are safe for solvent based applications.

Why Is it So Expensive

Unlike traditional penetrating sealers and waterproofers Ghostshield 8505 is scientifically formulated and proven to withstand automotive chemicals. Typical sealers may afford some short term protection, but if you are worried about constant exposure to oil, 8505 or TLPPC is the best choice. The superior technology and additional ingredients make the product more expensive. Like the saying goes, you get what you pay for.


Are you sitting down. WHen properly installed, the manufacturer offers a limited 100 Year Guarantee. Please see their documents for details/

Where to Use It

Ghostshield 8505 is typically used anywhere you would park a car. Normally that includes driveways and garage floors but there are other applications as well..