---
product_id: 132210891
title: "Siloxa-Tek 8505 Ultra Concentrate (1 Gallon Makes 4 GALLONS) - Penetrating Concrete Sealer, Water, Salt & Oil Repellent"
brand: "ghostshield"
price: "€ 914.81"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.nl/products/132210891-siloxa-tek-8505-ultra-concentrate-1-gallon-makes-4-gallons
store_origin: NL
region: Netherlands
---

# Low VOCs Water Repellent Stain Resistant Siloxa-Tek 8505 Ultra Concentrate (1 Gallon Makes 4 GALLONS) - Penetrating Concrete Sealer, Water, Salt & Oil Repellent

**Brand:** ghostshield
**Price:** € 914.81
**Availability:** ✅ In Stock

## Summary

> 🛡️ Seal the Deal with Siloxa-Tek!

## Quick Answers

- **What is this?** Siloxa-Tek 8505 Ultra Concentrate (1 Gallon Makes 4 GALLONS) - Penetrating Concrete Sealer, Water, Salt & Oil Repellent by ghostshield
- **How much does it cost?** € 914.81 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/132210891-siloxa-tek-8505-ultra-concentrate-1-gallon-makes-4-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

- • **Versatile Defense:** Perfect for driveways, patios, and more—guard your concrete from the elements!
- • **Ultimate Protection:** Defend your concrete against water, salts, and oils with industrial-grade technology.
- • **Eco-Friendly Formula:** Enjoy peace of mind with low VOCs that protect both your surfaces and the environment.
- • **Long-Lasting Results:** One gallon makes four, ensuring your investment goes further while keeping surfaces pristine.
- • **Effortless Application:** Experience easy application with no change in appearance—just pure protection.

## Overview

Siloxa-Tek 8505 Ultra Concentrate is an industrial-grade, water-based silane/siloxane concrete sealer designed to protect against water intrusion, deicing salts, and oil stains. This eco-friendly solution offers excellent penetration and easy application, making it ideal for various concrete surfaces while ensuring long-lasting durability.

## Description

Siloxa-Tek 8505 Ultra Concentrate (1 Gallon Makes 4 GALLONS) - Penetrating Concrete Sealer, Water, Salt & Oil Repellent

## Features

- An industrial-grade, water-based, silane/siloxane engineered to reduce water and moisture intrusion, protect concrete from deicing salts and chlorides, and resist staining from oil and fluids.
- Prevents deicing salt/chloride damage, freeze thaw damage, spalling, pitting, cracking, dirt pick up
- Resists staining from oils, auto fluids etc.
- Reduces moisture intrusion, water ingress and water vapor transmission
- Excellent penetration, easy application, no appearance change, low VOCs, water beading effect

## Product Details

- **Material:** Silane/Siloxane+
- **Brand:** Ghostshield
- **Style:** Oil & Stain Repellent
- **Compatible Material:** Concrete, Brick, Masonry
- **Water Resistance Level:** Waterproof

## Images

![Siloxa-Tek 8505 Ultra Concentrate (1 Gallon Makes 4 GALLONS) - Penetrating Concrete Sealer, Water, Salt & Oil Repellent - Image 1](https://m.media-amazon.com/images/I/71jluagy7BL.jpg)

## Questions & Answers

**Q: Does this product react/protect pressure treated wood?new concrete patio with concrete block enclosure also has pressure treated wood columns**
A: If it can soak in, you should be fine.

**Q: What sprayer did you use to apply the 8505?**
A: Hi = It's called an RS2 - garden sprayer that I picked up at Walmart for about $0.

**Q: Can it be applied aver an existing sealant?**
A: The Siloxa-Tek 8505 can be applied over a concrete densifier; however, any previous sealers, paints or coatings would need to be removed before using the Siloxa-Tek 8505.

**Q: What would my garage floor look like or would happen if I applied Siloxa-Tek  8505 over an existing sealer?**
A: This product works by penetrating the material it is applied to. As you have sealer or an epoxy coated floor it can't penetrate so you would be wasting your time and money.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great, great, great...worth every $
*by D***D on September 17, 2019*

Never sealed anything before but just had a new concrete driveway poured and wanted to protect against salts over the winter. The 8505 was easy to apply, I used a standard 2 gallon garden sprayer with a flat spray nozzle setting and a cheap plastic mixing bucket with measurements on the side. It went on evenly, dried quick (2nd coat goes on almost as soon as first coat is done in an area, within minutes), and is already very very water resistant. I haven’t seen it protect against salt, but all claims so far have been 100% spot on. Driveway didn’t change appearance at all after it dried either. I highly recommend! (And customer service is incredible)

### ⭐⭐⭐⭐⭐ Works as expected
*by B***D on October 16, 2019*

Love how easy it was to apply with a good sprayer (not a lawn sprayer, good brass tip sprayed a nice fan pattern). It was pricey but seems to work extremely well so far. I am going to spray a small pad next to my driveway with a product that is similar but 1/2 the price then I will know in a few years if Ghost shield was worth the price but so far the performance is outstanding! Pressure washed and cleaned with a mild Muriatic acid first then neutralizer. Product soaked in well and does what it says, so far so good.

### ⭐ Looks bad when wet!
*by M***E on April 2, 2021*

I wanted sealer that would be stain resistant around the pool. Easy to apply. I mixed and applied per the directions. It looks good after it was dry. But when it gets wet the water beads as it should, but forms a dark spot underneath in the concrete. It’s been over a week and still looks bad when it gets water on it. You can see my footprints, spots from leaves, or anything that gets water on the concrete that won’t go away until the concrete drys. Even if you wipe up the water the dark stain stays. In the photos you can see where concrete was sealed next to unsealed and see big difference.Looks bad and I’m very disappointed. Especially since I spent so much money.

## Frequently Bought Together

- Siloxa-Tek 8505 Ultra Concentrate (1 Gallon Makes 4 GALLONS) - Penetrating Concrete Sealer, Water, Salt & Oil Repellent
- Lithi-Tek 4500 - 1 Gallon Penetrating Concrete Sealer and Densifier
- Siloxa-Tek 8505 Ready to Use - 1 Gallon Penetrating Concrete Sealer, Water, Salt & Oil Repellent

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**Shop now:** [https://www.desertcart.nl/products/132210891-siloxa-tek-8505-ultra-concentrate-1-gallon-makes-4-gallons](https://www.desertcart.nl/products/132210891-siloxa-tek-8505-ultra-concentrate-1-gallon-makes-4-gallons)

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-03-17*