---
product_id: 38597824
title: "Siloxa-Tek 8500 Ultra Concentrate - 1 Gallon (Makes 5 GALLONS) Penetrating Concrete Sealer Water and Salt Repellent. Clear Water-Based DOT Approved Silane/Siloxane for Concrete Brick Masonry & Pavers"
brand: "ghostshield"
price: "€ 569.57"
currency: EUR
in_stock: true
reviews_count: 8
category: "Ghostshield"
url: https://www.desertcart.sk/products/38597824-siloxa-tek-8500-ultra-concentrate-1-gallon-makes-5-gallons
store_origin: SK
region: Slovakia
---

# UV stable, non-yellowing formula 6x higher active penetration DOT approved salt & freeze protection Siloxa-Tek 8500 Ultra Concentrate - 1 Gallon (Makes 5 GALLONS) Penetrating Concrete Sealer Water and Salt Repellent. Clear Water-Based DOT Approved Silane/Siloxane for Concrete Brick Masonry & Pavers

**Brand:** ghostshield
**Price:** € 569.57
**Availability:** ✅ In Stock

## Summary

> 🛡️ Protect your surfaces like a pro—because your concrete deserves next-level defense!

## Quick Answers

- **What is this?** Siloxa-Tek 8500 Ultra Concentrate - 1 Gallon (Makes 5 GALLONS) Penetrating Concrete Sealer Water and Salt Repellent. Clear Water-Based DOT Approved Silane/Siloxane for Concrete Brick Masonry & Pavers by ghostshield
- **How much does it cost?** € 569.57 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/38597824-siloxa-tek-8500-ultra-concentrate-1-gallon-makes-5-gallons)

## 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

- • **Long-Lasting Performance:** Certified vertical applications last up to 10 years before reapplication
- • **Invisible, Breathable Shield:** Clear, non-film forming formula preserves natural look & texture
- • **Versatile & Easy Application:** Spray, roll, or brush on concrete, brick, masonry & pavers with up to 250 sq ft coverage per gallon
- • **Supercharged Deep Penetration:** 6x more active ingredients for unmatched concrete protection
- • **Enduring Defense Against Elements:** DOT approved to resist salt, freeze-thaw, and chemical damage

## Overview

Siloxa-Tek 8500 Ultra Concentrate is a water-based silane/siloxane penetrating sealer engineered for superior water, salt, and freeze-thaw resistance. With 6x higher active ingredients than competitors, it offers long-lasting, breathable protection without altering the natural appearance or texture of concrete, brick, masonry, and pavers. DOT approved and UV stable, it’s easy to apply and covers up to 250 sq ft per gallon, making it the go-to choice for commercial and residential projects seeking durable, invisible surface defense.

## Description

Siloxa-Tek 8500 Ultra Concentrate - 1 Gallon (Makes 5 GALLONS) Penetrating Concrete Sealer Water and Salt Repellent. Clear Water-Based DOT Approved Silane/Siloxane for Concrete Brick Masonry & Pavers: desertcart.com: Tools & Home Improvement

Review: Very happy with Siloxa Tek 8500 - This product is working exactly like described. Easy to put on with a garden sprayer. The water beads up on our concrete now. Very happy with this product.
Review: Works great, quick and easy application! - Summary: this is a great product, worth the effort and expense if you need to protect your concrete from chemical exposure or water absorpsion. It's easy to apply by a pump up sprayer, brush, roller, sponge, or whatever you prefer. I had some puddling of the product, from over application, and a broom worked great for redistribution. For my new, 4 month old, broom finished concrete, it took substantially less product than the general recommendation. Note that it does state 'porosity' of what your applying it to is the main factor regarding coverage rate. i.e. your mileage will vary! It's important to follow the directions and apply a second coat while the first coat is still wet. More on that below. Naturally, the second coat required less product than the first. I can barely see a difference in the look of my concrete after application... until it's wet, which causes beading and considerable resistance to absorpsion. I treated another concrete pad the following day and sprayed some of the leftover product on a small portion of the previously treated concrete (pool deck) and immediately noticed puddling and lack of absorpsion. Only time will tell how long the protection will last for my pool deck. If I get 5+ years before needing to reapply, then it's well worth it.

## Features

- Siloxa-Tek 8500 is a water-based, silane/siloxane engineered to reduce water and moisture intrusion. Will not change the aesthetics, leaving your concrete, pavers, brick and stone with its original natural appearance. This low VOC formula is 100% breathable and non film forming (meaning it will never peel flake or delaminate).
- Siloxa-Tek 8500 is D.O.T (Department of Transportation) approved and resists surface damage caused by chlorides and deicing salts. It mitigates cracking, spalling and pitting and protects against surface degradation from freeze thaw damage.
- Siloxa-Tek 8500 is a supercharged penetrating sealer with 6x higher actives than any other water based concrete sealer on the market for long lasting protection that actually last. Resists wind driven rain.
- Siloxa-Tek 8500 is a commercial grade, impregnating sealer for commercial and residential applications. Its high actives formula is UV stable and will not break down from direct sunlight. There is no change to the surface profile ensuring a non slick surface. Siloxa-Tek 8500 is the next generation of impregnating sealers with smaller active particles for even deeper penetration for unrivaled protection.
- Excellent water beading effect, easy application with sprayer, roller or brush. Use on driveways, garages, basements, patios, pool decks. Covers up to 250 square feet per gallon per coat. If installed by certified applicator vertical applications can last up to 10 years before reapplication is required.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01MQX8QOH |
| Best Sellers Rank | #89,882 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #270 in Hardware Sealers |
| Brand | Ghostshield |
| Color | clear |
| Date First Available | July 8, 2015 |
| Global Trade Identification Number | 00855849005163 |
| Is Discontinued By Manufacturer | No |
| Item Form | Liquid |
| Item Weight | 8.65 pounds |
| Item dimensions L x W x H | 6 x 4 x 10 inches |
| Item model number | 8500 Ultra Concentrate |
| Manufacturer | Kretetek Industries Inc. |
| Material | Silane/Siloxane |
| Number of Items | 1 |
| Product Dimensions | 6 x 4 x 10 inches |
| Style | Siloxa-Tek 8500 Ultra Concentrate |
| Surface Recommendation | Concrete, Brick, Masonry, Stone |
| UPC | 855849005163 |
| Unit Count | 128 Fluid Ounces |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** Ghostshield
- **Item Weight:** 8.65 Pounds
- **Item dimensions L x W x H:** 6 x 4 x 10 inches
- **Material:** Silane/Siloxane
- **Style:** Siloxa-Tek 8500 Ultra Concentrate

## Images

![Siloxa-Tek 8500 Ultra Concentrate - 1 Gallon (Makes 5 GALLONS) Penetrating Concrete Sealer Water and Salt Repellent. Clear Water-Based DOT Approved Silane/Siloxane for Concrete Brick Masonry & Pavers - Image 1](https://m.media-amazon.com/images/I/516klFnsOiL.jpg)

## Questions & Answers

**Q: Will this cause my pavers to get darker after application compared to no treatment?**
A: The 8500 does not darken the pavers once it dried.

**Q: If I mix this stronger (with less water) would it work better?**
A: Not sure, but what I can tell you is this stuff works great when you mix it exactly how it says to on the bottle. Water beads up and runs off my porch, sidewalk, and steps like rain runs off the body of a freshly waxed car. Water doesn't soak into the concrete anymore like it did before I applied Siloxa-Tek 8500. It beads up and runs off, or, sits there until it evaporates. Anyway, why would you want to mix it stronger (more Siloxa-Tek and less water)? It's already expensive enough mixing it as recommended!!

**Q: If only half is used, how long is the remaining half good for?**
A: It depends on how it is stored

**Q: Can a driveway treated with siloxa-tek 8500 be resurfaced later using a cement resurfacing product (rapid set new crete)?**
A: Why waste your time and money treating a surface you plan to repair. Do it right. Fix the surface then seal it

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very happy with Siloxa Tek 8500
*by L***N on February 18, 2026*

This product is working exactly like described. Easy to put on with a garden sprayer. The water beads up on our concrete now. Very happy with this product.

### ⭐⭐⭐⭐⭐ Works great, quick and easy application!
*by C***Y on October 11, 2024*

Summary: this is a great product, worth the effort and expense if you need to protect your concrete from chemical exposure or water absorpsion. It's easy to apply by a pump up sprayer, brush, roller, sponge, or whatever you prefer. I had some puddling of the product, from over application, and a broom worked great for redistribution. For my new, 4 month old, broom finished concrete, it took substantially less product than the general recommendation. Note that it does state 'porosity' of what your applying it to is the main factor regarding coverage rate. i.e. your mileage will vary! It's important to follow the directions and apply a second coat while the first coat is still wet. More on that below. Naturally, the second coat required less product than the first. I can barely see a difference in the look of my concrete after application... until it's wet, which causes beading and considerable resistance to absorpsion. I treated another concrete pad the following day and sprayed some of the leftover product on a small portion of the previously treated concrete (pool deck) and immediately noticed puddling and lack of absorpsion. Only time will tell how long the protection will last for my pool deck. If I get 5+ years before needing to reapply, then it's well worth it.

### ⭐⭐⭐⭐⭐ Great sealer!
*by R***N on September 13, 2025*

This stuff is legit. Water beads like glass. It doesn’t go as far as you might expect so if you aren’t sure, order extra. For my 800sf driveway I used one gallon of concentrate and one gallon of RTU, about $300 in total. Can’t speak to longevity, but it definitely works and dries invisible, maybe even a little brighter. I power washed my driveway before i applied it and used a 3/8” nap roller. The concrete soaks it up fast so it doesn’t spread very far. Second coat i applied 5-10 minutes later and it’s spreads a little better. Don’t let it puddle. If it lasts more that 5 years, I’ll be very happy.

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-03-17*