--- product_id: 724349475 title: "Siloxa-Tek 8500 Concrete Sealer And Water Repellent" brand: "ghostshield" price: "$333.43" currency: USD in_stock: true reviews_count: 5 category: "Ghostshield" url: https://www.desertcart.us/products/724349475-siloxa-tek-8500-concrete-sealer-and-water-repellent store_origin: US region: United States of America --- # Deep moisture barrier Chemically bonds with substrate Long-lasting protection Siloxa-Tek 8500 Concrete Sealer And Water Repellent **Brand:** ghostshield **Price:** $333.43 **Availability:** ✅ In Stock ## Summary > 🛡️ Seal in strength, keep moisture out — protect your surfaces like a pro! ## Quick Answers - **What is this?** Siloxa-Tek 8500 Concrete Sealer And Water Repellent by ghostshield - **How much does it cost?** $333.43 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/724349475-siloxa-tek-8500-concrete-sealer-and-water-repellent) ## Best For - ghostshield enthusiasts ## Why This Product - Trusted ghostshield brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Hydrophobic Barrier That Breathes:** Repels water while allowing vapor permeability to prevent substrate damage - • **Proven Longevity & Cost Efficiency:** Years of visible protection, making the premium price a smart investment - • **Penetrates Deep for Ultimate Defense:** Seals concrete capillaries & shrinkage cracks to block moisture and mold growth - • **Versatile Mineral Surface Protection:** Effective on concrete, brick, stucco, slate, and more for broad application - • **Industrial Strength, Water-Based Formula:** Powerful yet eco-conscious sealing without harsh solvents ## Overview Ghostshield Siloxa-Tek 8500 is a premium water-based concrete sealer that penetrates deeply to form a durable hydrophobic barrier. It chemically bonds with a wide range of mineral substrates, preventing water intrusion, mold, mildew, and radon spread while remaining vapor permeable. Trusted by professionals for its long-lasting protection and versatility across concrete, brick, stucco, and more. ## Description Siloxa-Tek 8500 is a high performance industrial strength water based concrete/masonry water repellent solution designed to stop water and moisture intrusion Penetrates deeply and seals concrete's capillary tracts and shrinkage cracks preventing the growth of mold and mildew and the spread of radon. Forms a hydrophobic barrier beneath the surface and seals out moisture while remaining highly vapor permeable and chemically bonding with the substrate. Protects a wide variety of mineral substrates including architectural concrete, concrete block, splitface block, pavers, stucco, porous and dense brick, clay tile, exposed aggregate concrete, sandstone, and slate. Review: Siloxa-Tek 3500 - Works well. Easy to apply with sprayer. Water is repelled very well. Review: Pricey But Worth It - Pricey but worth it. I originally applied a few years ago. I stopped at the top of my steps. Whenever it rains, you can see the product still protecting where I sprayed. It's more cost effective to order the concentrate. I ordered the ready to use as I needed just a little more. Read the detailed description how this product works and it'll make more sense why it's pricey. Long lasting too. ## Features - Harmful to aquatic life with long lasting effects. - Use biocides safely. Always read the label and product information before use. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00H6QT28M | | Best Sellers Rank | 444,292 in DIY & Tools ( See Top 100 in DIY & Tools ) 1,615 in Gutters & Accessories | | Brand | Ghostshield | | Compatible Material | Ceramic | | Customer Reviews | 4.5 out of 5 stars 1,336 Reviews | | Global Trade Identification Number | 00855849005040 | | Item Form | Liquid | | Item Weight | 9.08 Pounds | | Item form | Liquid | | Item weight | 9.08 Pounds | | Manufacturer | GHOSTSHIELD Siloxa-Tek 8500 | | Manufacturer Part Number | 8500 | | Material | Silicone | | Model Number | 8500 | | Number of Items | 1 | | Style | Compact | | Style Name | Compact | | Surface Recommendation | Tile | | UPC | 855849005040 | | Water Resistance Level | Water Repellent | | Water resistance level | Water Repellent | ## Product Details - **Brand:** Ghostshield - **Item weight:** 4.12 kg - **Material:** Silicone - **Style:** Compact - **Water resistance level:** Water Repellent ## Images ![Siloxa-Tek 8500 Concrete Sealer And Water Repellent - Image 1](https://m.media-amazon.com/images/I/51jSz+MXD4S.jpg) ![Siloxa-Tek 8500 Concrete Sealer And Water Repellent - Image 2](https://m.media-amazon.com/images/I/71CXfSSB7gL.jpg) ![Siloxa-Tek 8500 Concrete Sealer And Water Repellent - Image 3](https://m.media-amazon.com/images/I/619nVD0UcIL.jpg) ![Siloxa-Tek 8500 Concrete Sealer And Water Repellent - Image 4](https://m.media-amazon.com/images/I/71hzSgk13ZL.jpg) ![Siloxa-Tek 8500 Concrete Sealer And Water Repellent - Image 5](https://m.media-amazon.com/images/I/612BWBM7xiL.jpg) ## Questions & Answers **Q: Can this product be applied using a hand pump sprayer? What is the typical coverage area for 1 gallon?** A: I used it to seal rocks on my pool waterfall and used a small brush because I didn't want overspray in my pool and I wanted to be sure that I didn't miss any spots. This sealant is very watery and I believe it says you may use a pump sprayer. I believe it would work in a handheld garden sprayer because it is a very thin watery substance. I don't have the instructions but you can go to their website and read the product specifications. I'm not sure how far the gallon would go but I put 2 coats on my waterfall and covered all the natural stone around my pool coping and still had 10-12 ounces left. I have a salt water pool, my husband talked with a company representative and recommended this product. I've been pleased with the results so far. Also, this product does not have any sheen to it and did not change the color or appearance of the stone, which is exactly what I wanted. Goodluck! **Q: What is the difference between silioxa-tek 8500 vs. lithi-tec 9500 ?-tex** A: Silica-tek 8500 is a repellent to protect masonry and concrete from water, chlorides and de-icing salt damage. Lithi-tek 9500 is a sealer/densifier used to strengthen concrete and seal it from water damage. It is not intended to be used to prevent de-icing salt damage. Hope this helps! **Q: Does this product provide any slip resistance?** A: No. If you get freezing rain in your area, it is VERY slippery and requires using sand. Don't use salt or any chemicals. You might ruin the protection. **Q: what is the coverage when applied with roller** A: Coverage is still similar at roughly 250 sq ft per gallon. You may experience some difficulty with a roller being how thin a liquid this is vs a conventional paint. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Siloxa-Tek 3500 *by R***N on 3 August 2026* Works well. Easy to apply with sprayer. Water is repelled very well. ### ⭐⭐⭐⭐⭐ Pricey But Worth It *by E***R on 30 June 2026* Pricey but worth it. I originally applied a few years ago. I stopped at the top of my steps. Whenever it rains, you can see the product still protecting where I sprayed. It's more cost effective to order the concentrate. I ordered the ready to use as I needed just a little more. Read the detailed description how this product works and it'll make more sense why it's pricey. Long lasting too. ### ⭐⭐⭐⭐⭐ My go-to sealer for my chimney *by S***A on 26 March 2025* Years ago, I used Thompson water sealer. The product changed over time; was milky and waxy when applied. I tried this product instead and have used it twice. The first time was for my chimney, which would leak when hit with high winds and driving rain. It sealed superbly; no leaks *at all*, ever. Then I purchased more to seal a concrete pad, and some touch up the chimney just in case. It's very easy to apply with a simple pump sprayer and performs exactly as advertised. This product is a winner; hope they don't change a thing about it. ## Frequently Bought Together - Siloxa-Tek 8500 Ready to Use - 1 Gallon Penetrating Concrete Sealer, Water and Salt Repellent. Clear, Water-Based DOT Approved Silane/Siloxane for Concrete, Brick, Masonry & Pavers - Lithi-Tek 4500 - 1 Gallon Penetrating Concrete Sealer and Densifier --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/724349475-siloxa-tek-8500-concrete-sealer-and-water-repellent](https://www.desertcart.us/products/724349475-siloxa-tek-8500-concrete-sealer-and-water-repellent) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-08-13*