• Just one hour for a thorough reaction
  • The concrete is now ready to polish
  • No overnight curing
  • No caustic gel to scrub off
  • Nothing to dispose of

Xtreme Hard Concrete Densifier is a
green, ​clean, and safe material

  • Low pH formula (pH approx 8.7, only slightly higher than baking soda)
  • Contains no harsh chemical solvents
    • Emits no Volatile Organic Compounds (VOCs)
    • Eliminates the hazardous-material disposal issues of other densifiers​

Xtreme Hard Concrete Densifier is easier to use, less expensive to use, better for the jobsite, and friendlier to the planet​​

Why Xtreme Hard Densifier is a Superior yet Inexpensive Concrete Densifier

  • Xtreme Hard Concrete Densifier concrete densifier is a fast-acting concrete densifier using colloidal silica.
  • Xtreme Hard Concrete Densifier is faster, less expensive, and easier to use that lithium, sodium, or modified sodium silica densifiers (the old-school traditional densifiers)
  • Xtreme Hard Concrete Densifier can be applied to newly-placed concrete as soon as it sets, while the concrete is still wet. It will also perform extraordinarily with concrete slabs that are decades old.


  • Our advanced colloidal silica blend goes to work quickly, within 1-2 minutes.
  • Spray it on the concrete until the surface is saturated and stops soaking up the liquid and agitate; that's the only application step required and you are ready to polish.
  • There is no heavy scrubbing or working the material. Xtreme Hard Concrete Densifier penetrates more deeply and reacts more efficiently than traditional concrete densifiers.

To order Xtreme Hard Concrete Densifier or any of our Xtreme Line of Products, please click on
Purchase Our Products

​For More Information, and for Distributor Pricing and Inquiries, Please Call Toll-free at
​1(888) 203-6791.

Unlike sellers of other concrete densifiers, our concentrated formula means we do not ship water, so we ship FREE in the contiguous U.S.
Xtreme Hard Concrete Densifier means beautiful polished concrete with increased speed, economy, and density. Combine a great product with significant savings over other densifiers
​and how can you go wrong?!
Merchant Services

Colloidal Silica Concrete Densifier - buy direct and save on Xtreme hard!

  • ​No whiting potential
  • Ships in concentrated form
  • Less in shipping costs – Why pay to ship water?​

Why This Concrete Densifier?

  • Penetrates quickly, deeply, and cleanly into concrete
  • The nano-size particles in Xtreme Hard Densifier are far more reactive than in conventional concrete densifiers​​
  • ​The particles form cementation compounds that harden and densify the surface with less wait and less waste
  • Safer and more environmentally friendly than traditional concrete densifiers​
Our advanced colloidal silica product is the easiest and most effective concrete densifier on the market today!

A little Xtreme Hard goes a long way…

Xtreme Hard Densifier is shipped as a concentrate

1 gallon of concentrate makes 5 gallons of ready-to-use product which will cover 2,500 - 3000+ Sq/Ft.​

Xtreme Hard Concrete Densifier:
The Fastest, Easiest, Absolute Best Concrete Densifier on the Planet!