A-Tech Concrete Sealer-water repellent for Concrete Driveways, Sidewalks and Patios

Natural look driveway sealer


Commercial Specifications Section 07 19 23

A-Tech Concrete Sealer is a low VOC (volatile organic compound) water-based concrete water repellent that seals concrete driveways, sidewalks and patios from water penetration.  This environmentally friendly concrete sealer protects your investment from the damages of de-icing salt and freeze thaw cycles.

Natural Look Concrete Sealer

A-Tech Concrete Sealer silane/siloxane concrete water repellent is a breathable 100% vapor permeable sealer.  Application can be performed by sprayer, brush or roller. The sealer penetrates below the concrete surface. The concrete will look the same as if it where untreated. The texture and traction of the concrete is maintained. Once cured A-Tech Concrete Sealer will make the concrete repel water, reduce staining, reduce spalling and protect concrete from de-icing salt attack.

There is no surface film, gloss or sheen to the finished product.


5 Gallon Pail A-Tech
Concrete Sealer5 Gallon Pail A-Tech
Concrete Sealer
A-Tech Concrete Sealer 5-Gallon Pail


100-150 sq. ft./gallon

1 Gallon A-Tech
Concrete Sealer1 Gallon A-Tech
Concrete Sealer
A-Tech Concrete Sealer 1-Gallon Jug


100-150 sq. ft./gallon

2 Gallon Sprayer2 Gallon Sprayer

Professional grade pump up hand sprayer to apply A-Tech Concrete Sealer

  • Polyethylene construction
  • Fan pattern spray tips for even application
  • 1/4, 1/3, 1/2 gpm nozzles
  • Lock in place spray guard to protect siding
  • Wide funnel top
  • 2 gallon usable capacity

This product does NOT ship for free

1 Gallon Sprayer1 Gallon Sprayer

Professional grade pump up hand sprayer to apply A-Tech Concrete Sealer

  • Polyethylene construction
  • Fan pattern spray tip for even application
  • 1/4 gpm nozzle
  • Wide funnel top
  • 1 gallon usable capacity

This product does NOT ship for free

Why Use a Penetrating Silane/Siloxane Water Repellant on Concrete

1. Chemically Bond to the Substrate

Siloxane based concrete sealers that penetrate into the substrate have many advantages over surface sealers such as acrylics, silicone and epoxies. The siloxane bonds chemically to the pores inside and below the surface of concrete substrates. This keeps liquid water from entering into the concrete. Also, since the sealer pentrates deeply, UV rays cannot degrade the concrete sealer. The penetrating sealer is below the concrete surface so it will give a long life.


2. Excellent for High Traffic Areas

Penetrating below the surface means that high traffic areas like driveways and sidewalks will not lose protection from high use. Surface sealers remain on top of the substrate and are eroded from repeated use. Also the substrate will maintain its natural texture and sheen.


3. Stopping Efflorescence and Staining

Efflorescence is the white color that is seen on many concrete buildings. This is the natural salts that are carried to the surface of the concrete by water vapor inside of it. Once the water gets to the surface, the water evaporates and leaves the salts behind on the brick surface. By stopping the water from getting into and penetrating the concrete, the efflorescence will be stopped. Also, because the pores of the concrete are filled, staining of the concrete will be greatly reduced.


4. Prevent Concrete Spalling and Scaling

Penetrating siloxane concrete sealers also allow interior water vapor to leave the concrete substrate. This is an important difference between a surface sealer and many other penetrants. A surface sealer will keep interior water vapor that needs to escape inside the brick. In a cold climate, water vapor trapped behind a surface sealer will freeze and cause the concrete to spall or scale (flake.) Siloxane penetrants reduce spalling or flaking because the water vapor can breathe to the air.


5. Protection from De-icing Salts

Water that penetrates into concrete expands when it freezes. This increases the water's volume and causes the concrete to weaken and be physically broken. Repeated cycles can cause the concrete to begin to spall and flake. Concrete that is not sealed and has de-icing salts applied to melt ice can subject the concrete to many more freeze thaw cycles. That is becuase when the temperature drops below the effective working temperature of the de-icing salt, it refreezes and expands. By sealing concrete with A-Tech Concrete Sealer, the concrete will be protected from all of these cycles


Where to use A-Tech Concrete Sealer

  • Exterior concrete
  • Vertical walls
  • Horizontal concrete
  • Concrete driveways
  • Concrete sidewalks
  • Concrete patio

A-Tech Concrete Sealer Features

  • Natural look
  • 100% vapor Permeable
  • No substrate appearance change
  • 10% siloxane and alkylaloxysilane solution
  • Concrete becomes water repellent
  • Skid and traction properties remain the same
  • De-icing salt protection
  • Water-based formula
  • Penetrates below the surface
  • Horizontal or vertical use
  • VOC Content <200g/L

100% Vapor Permeable

A-Tech Masonry Concrete Sealer is 100% breathable and allows water vapor to escape. Liquid water that hits the surface from rain stays out of the concrete.  But water that is absorbed from under or behind the substrate, such as from the soil below concrete driveways or sidewalks, will not be trapped inside. This will reduce the efflorescence, spalling and scaling that can occur from water being trapped inside the concrete substrate and freezing during cold weather.


  • Water repellent
  • Reduces efflorescence, scaling and spalling
  • 100% vapor permeable