---
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: "2611 Lei"
currency: RON
in_stock: true
reviews_count: 8
category: "Ghostshield"
url: https://www.desertcart.ro/products/38597824-siloxa-tek-8500-ultra-concentrate-1-gallon-makes-5-gallons
store_origin: RO
region: Romania
---

# UV Stable Water Repellent Surface 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:** 2611 Lei
**Availability:** ✅ In Stock

## Summary

> 🔒 Seal the Deal with Siloxa-Tek!

## 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?** 2611 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/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

- • **Aesthetic Integrity:** Maintains original look of surfaces without slickness.
- • **Unmatched Longevity:** Lasts up to 10 years with certified application!
- • **Eco-Friendly Formula:** Low VOC, breathable, and non-toxic.
- • **Superior Penetration:** 6x higher actives for deep, lasting protection.
- • **Versatile Application:** Perfect for driveways, patios, and more!

## Overview

Siloxa-Tek 8500 Ultra Concentrate is a high-performance, water-based penetrating concrete sealer that protects against moisture, salts, and surface damage while preserving the natural appearance of concrete, brick, and masonry. With a low VOC formula and D.O.T approval, it offers long-lasting protection and is suitable for both commercial and residential applications.

## 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: Great sealer! - 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.
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.

## Product Details

- **Material:** Silane/Siloxane
- **Brand:** Ghostshield
- **Style:** Siloxa-Tek 8500 Ultra Concentrate
- **Item Weight:** 8.7 Pounds
- **Item dimensions L x W x H:** 6 x 4 x 10 inches

## 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

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐⭐ Fantastic product! Highly recommend!
*by C***. on September 16, 2025*

I am very impressed with the ghostshield products! The water just beads and rolls off. I used the 4500 densifier, then put this 8500 sealer down on my driveway. I applied it using a pump sprayer. Working in small areas applying two wet coats. With no foot or heavy traffic for 36 hours.

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-01-29*