---
product_id: 33764409
title: "Xtreme Hard Collidal Silica Concrete Densifier Hardener Concentrate (1 Gallon) Makes 5 Gallons 2,500 Sq ft Coverage"
brand: "brand: xtreme polishing systems"
price: "฿19697"
currency: THB
in_stock: false
url: https://www.desertcart.co.th/products/33764409-xtreme-hard-collidal-silica-concrete-densifier-hardener-concentrate-1-gallon
store_origin: TH
region: Thailand
---

# Xtreme Hard Collidal Silica Concrete Densifier Hardener Concentrate (1 Gallon) Makes 5 Gallons 2,500 Sq ft Coverage

**Brand:** brand: xtreme polishing systems
**Price:** ฿19697
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** Xtreme Hard Collidal Silica Concrete Densifier Hardener Concentrate (1 Gallon) Makes 5 Gallons 2,500 Sq ft Coverage by brand: xtreme polishing systems
- **How much does it cost?** ฿19697 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/33764409-xtreme-hard-collidal-silica-concrete-densifier-hardener-concentrate-1-gallon)

## Best For

- brand: xtreme polishing systems enthusiasts

## Why This Product

- Trusted brand: xtreme polishing systems brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

Size:1 Gallon




























Mix 1 Part of Xtreme Hard to 4 Parts Water   Xtreme Hard is a highly reactive colloidal silica based densifying agent. The colloidal silica molecule has more reactive sites, so it goes to work quickly (within 1-2 minutes). Spray it on concrete until the surface is saturated, then agitate with a soft bristle broom. Wait until dry (45-60 minutes)   Easy to apply (soft bristle broom)  Low Maintenance  Stops Dusting  Eliminates Mold  LEED Compliant   Xtreme Hard is a green, clean and safe material. It's low pH formula (pH approx 8.7) is safe to handle. Xtreme Hard emits no VOC's (Volatile Organic Compounds) and eliminates the hazardous -material disposal, so it's better for the job site and friendlier to the planet.  Xtreme Hard is shipped as a concentrate. One gallon of concentrate makes 5 Gallons of ready to use product. Xtreme Hard is the lowest cost densifier per square foot   ***Contact us via  messaging system for MSDS/TDS Sheets on this product***

## Features

- 1 Gallon Concentrate Covers 2,500 Square Feet
- Colloidal-Silica Densifying Agent
- Shipped As Concentrate (Just Add Water)
- Low pH Formula (pH 8.7)
- Xtreme Hard is the lowest cost densifier per square foot

## Images

![Xtreme Hard Collidal Silica Concrete Densifier Hardener Concentrate (1 Gallon) Makes 5 Gallons 2,500 Sq ft Coverage - Image 1](https://images-na.ssl-images-amazon.com/images/I/41VnMeDRA3L.jpg)

## Available Options

This product comes in different **Size** options.

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**Shop now:** [https://www.desertcart.co.th/products/33764409-xtreme-hard-collidal-silica-concrete-densifier-hardener-concentrate-1-gallon](https://www.desertcart.co.th/products/33764409-xtreme-hard-collidal-silica-concrete-densifier-hardener-concentrate-1-gallon)

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-06-07*