Siloxa-Tek 8505 Ready to Use - 1 Gallon Penetrating Concrete Sealer, Water, Salt and Oil Repellent. Clear, Water-Based Silane/Siloxane for Concrete, Brick, Masonry & Pavers
Siloxa-Tek 8505 Ready to Use - 1 Gallon Penetrating Concrete Sealer, Water, Salt and Oil Repellent. Clear, Water-Based Silane/Siloxane for Concrete, Brick, Masonry & Pavers
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Ghostshield

Siloxa-Tek 8505 Ready to Use - 1 Gallon Penetrating Concrete Sealer, Water, Salt and Oil Repellent. Clear, Water-Based Silane/Siloxane for Concrete, Brick, Masonry & Pavers

4.8 stars out of 422 reviews
(4.8)|
422 ratings

Key item features

  • Excellent Waterproofing: Penetrates deep within concrete, creating a long-lasting hydrophobic surface that beads water.
  • Oil and Grease Resistant: Oleophobic fluorocarbon makes oil and grease easier to clean, reducing maintenance requirements.
  • Breathable Formula: Non-film forming, allows moisture within the concrete to escape without adverse effects to the sealer.
  • Moisture Intrusion Reduction: Resists wind-driven rain, prevents freeze-thaw damage, spalling, pitting, and cracking.
  • Atmospheric Stain Resistance: Resists mold, mildew, lichen, efflorescence, and dirt pick up.
  • Durability Improvement: Prevents capillary uptake of water and aggressive substances dissolved in it.
  • Natural Finish: Does not change surface appearance, UV stable, and will not break down with light exposure.
  • Versatile Application: Can be applied to cured, honed, and polished concrete, ideal for horizontal surfaces like garage floors.
  • Environmentally Friendly: Water-based with low VOCs, making it an eco-friendly option.
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Current price is $89.88
Price when purchased online
  • Free shipping
  • Free 30-day returns

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Columbus, 43215
Arrives by Mon, Mar 2
|
Sold and shipped by Concrete Sealer Supply
4.8 stars out of 5, based on 10 seller reviews(4.8)
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About this item

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Customer ratings & reviews

4.8 out of 5 stars
stars422 ratings371 reviews
How item rating is calculated
  1. 5 stars85% (358)
  2. 4 stars10% (41)
  3. 3 stars4% (16)
  4. 2 stars0% (2)
  5. 1 star1% (5)

Reviews summary

Pros
  • : Application is simple with a sprayer or roller.
  • : Applies with various types of sprayers.
  • : Features easy cleanup of oil spills and stains.
  • : Can be mixed with water for application.
  • : Effectively repels oil-based stains for easy cleanup.
Neutral
  • : Can appear natural and matte, but may lack visible change.
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Showing 1-3 of 371 reviews

Oct 31, 2025
Mary
Sold and shipped byConcrete Sealer Supply
5 out of 5 stars review

Verified Purchase

Great product at a great price

I placed this sealer on our recently cleaned driveway that had a densifier applied a week earlier. This went on perfectly and our driveway looks like new and is repelling water beautifully! Read the directions completely! I checked about six website stores and this was the lowest price! I didn't use all the containers I ordered ( ordered extra just in case) and returning them to Walmart for a full refund .was so easy. The seller was amazing and returning was a breeze.

Helpful?5MFQAUXJMBC6112515819
Sep 25, 2025
Stephen
Sold and shipped byConcrete Sealer Supply
5 out of 5 stars review

Verified Purchase

Helpful?5MFQAUXJMBC6112515819
Nov 17, 2025
Wesley J.
5 out of 5 stars review

Went further than I thought.

I built a garage so fresh concrete. The guys that poured the concrete said the price included a sealer. They used SpecChem LithSeal and after my research its just a concrete densifier and harder. I noticed it didnt "seal" from water or anything. I reached out to Ghostshield and told them what I had if the 8505 or 8510 would be compatible with whats already on the concrete short answer they said they didnt know. So I bought a small test bottle of 8505 to test. It worked and great so I bought the 8505 concentrate. The calculator said I would need 7 gallons to do all my concrete. I did it all with the 4 gallons mixed not sure if it's because the lithseal so I used less or what but it seems to work great and I am happy with it since I only bought 1 gallon of concentrate. In my picture shows my test area sealed vs not sealed.

Review from Ghostshield Concrete Sealers
Helpful?5MFQAUXJMBC6112515819